Idaho Transportation Department US 20: CHESTER TO MONTANA ... · ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a mixture of at-grade and grade-separated

Idaho Transportation Department

US 20: CHESTER TO MONTANA SAFETY CORRIDOR PLANNovember 2016

Prepared for:

Idaho Transportation Department, District 6206 N. Yellowstone AvenueRigby, Idaho 83442-0097(208) 745-7781

Prepared by:

Kittelson & Associates, Inc.101 South Capitol Boulevard, Suite 301Boise, ID 83702(208) 338-2683

MOVINGFORWARDTHINKINGTM

US 20: Chester to Montana Safety Corridor Plan

Fremont County, Idaho

Final

November 2016

US 20: Chester to Montana Safety Corridor Plan


Prepared For: Idaho Transportation Department, District 6 206 N. Yellowstone Avenue Rigby, Idaho 83442-0097 (208) 745-7781

Prepared By: Kittelson & Associates, Inc. 101 South Capitol Boulevard, Suite 301 Boise, ID 83702 (208) 338-2683

Project Manager: John Ringert, P.E. Project Planner: Nick Foster, A.I.C.P.

Project No. 19597.00

November 2016

US 20: Chester to Montana Safety Corridor Plan November 2016 Table of Contents

iii Kittelson & Associates, Inc.

TABLE OF CONTENTS Executive Summary ................................................................................................................................ 2

Introduction ........................................................................................................................................... 7

Project Purpose and Background ................................................................................................................................................ 7

Roadway Summary ...................................................................................................................................................................... 9

Other Ongoing Projects ............................................................................................................................................................... 9

Organization of the Report .......................................................................................................................................................... 9

Safety and Operations Analysis ........................................................................................................... 12

Traffic Operations ...................................................................................................................................................................... 12

Crash Analysis ............................................................................................................................................................................ 15

Summary ................................................................................................................................................................................... 27

Project Alternatives.............................................................................................................................. 30

Project Alternatives Considered ................................................................................................................................................ 30

Recommendations ............................................................................................................................... 48

Comparative Summary of Alternative Treatments .................................................................................................................... 48

Recommended Long-Term Configuration of US 20 ................................................................................................................... 51

References ........................................................................................................................................... 55


iv Kittelson & Associates, Inc.

LIST OF FIGURES

Figure 1 Study Area, Lane Types, and Grades ........................................................................................ 8

Figure 2 Year 2015 Traffic Volumes by Month (ATR #32 - Ashton) ..................................................... 12

Figure 3 Existing Lane Types and Existing and Projected Traffic Operations ...................................... 14

Figure 4 Crashes by Severity (2010 – 2014) ......................................................................................... 15

Figure 5 Crashes by Road Surface Condition (2010 – 2014) ................................................................ 16

Figure 6 Annual Crashes by Road Surface Condition ........................................................................... 16

Figure 7 Ice/Snow Conditions at Henrys Lake RWIS Station (2011 - 2014) ......................................... 17

Figure 8 Crashes by Type (2010 – 2014) .............................................................................................. 18

Figure 9 Intersection Crashes (2010 - 2014) ........................................................................................ 19

Figure 10 Comparison of Crash Rates and HSCA Scores Along US 20 ................................................. 21

Figure 11 Expected vs. Observed Crash Rate ....................................................................................... 23

Figure 12 Expected Crash Rate, Winter Weather Road Surface Crashes, and Animal Crashes .......... 24

Figure 13 Expected Crash Rate and Lane Departure Crashes .............................................................. 25

Figure 14 Expected Crash Rate, Access Density, and Crashes Potentially Related to Access ............. 26

Figure 15 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions ......................... 31

Figure 16 Lane Configurations (Existing vs. 2+1) ................................................................................. 32

Figure 17 Comparison of Expected Crash Rates (Existing vs. 2+1 Configuration) ............................... 33

Figure 18 Existing Operations Comparison - Existing vs. 2+1 Configuration ....................................... 34

Figure 19 Year 2036 Operations Comparison - Existing vs. 2+1 Configuration ................................... 35

Figure 20 Comparison of Expected Crash Rates (Existing vs. Consistent 8' Shoulders) ...................... 37

Figure 21 Comparison of Expected Crash Rates (Existing vs. Edgeline Rumble Strips) ....................... 39

Figure 22 Comparison of Expected Crash Rates (Existing vs. Center Rumble Strips) .......................... 41

Figure 23 Comparison of Expected Crash Rates (Existing vs. Improved RHR) ..................................... 42

Figure 24 Comparison of Expected Crash Rates (Existing vs. Access Management) ........................... 43

Figure 25 Winter Weather Road Surface Crashes, Animal Crashes, and Potential Sites to Consider Shade

Reduction 45

Figure 26 Crash Frequency on US 20 Corridor with Potential Treatments ......................................... 48

Figure 27 Comparison of Expected Change in Crash Rates (2+1, 8' Shoulders, and Improved RHR) .. 49

Figure 28 Comparison of Expected Change in Crash Rates (Rumble Strips and Access Management)50


v Kittelson & Associates, Inc.

Figure 29 Safety Performance by Crash Severity - Existing vs. Recommended Configuration ........... 51

Figure 30 Estimated Reduction in Crashes, 2+1 Configuration and 8' Shoulders ................................ 52

Figure 31 Operational Performance - Existing vs. Recommended Configuration ............................... 53


vi Kittelson & Associates, Inc.

APPENDICES

Appendix A Geometric, Traffic, and Crash Data by Segment

Appendix B Crash Data

Appendix C Weather Data

Appendix D Comparison of 6’ vs. 8’ Shoulders

Appendix E Example Treatment Locations

Section 1 Executive Summary

US 20: Chester to Montana Safety Corridor Plan November 2016 Executive Summary

2 Kittelson & Associates, Inc.

EXECUTIVE SUMMARY

The US 20 corridor between Chester and the Montana state is approximately 53 miles long and serves

multiple purposes that are of importance to the local, regional, and national economies. During the

summertime, thousands of tourists use the corridor while traveling to and from Yellowstone National

Park, the famous fly fishing destination of the Henrys Fork River, Harriman State Park, Henrys Lake State

Park, Mesa Falls, and other recreation destinations. In the winter, the corridor serves as an alternate

route to I-15 for commercial vehicle traffic traveling to and from I-90, the longest Interstate Highway in

the country. In fact, according to ITD staff, US 20 from Idaho Falls to Montana carries the greatest

amount of freight traffic of all non-Interstate Highways in the state of Idaho.

ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a mixture of at-

grade and grade-separated intersections. However, north of Chester, US 20 is still a rural two-lane

highway. From 2010 to 2014, there were over 430 reported crashes on this rural section of highway,

resulting in an estimated economic cost of about $50 million. Further, summertime peak traffic is nearly

four times that of wintertime traffic volumes, leading to traffic congestion that only needs to be

mitigated for a couple months of the year.

This report builds on the US 20 Corridor Plan: Ashton to Montana State Line to lay out a vision for US 20

that will reduce crashes and peak traffic congestion without incurring the expense and impacts of

constructing a four-lane divided highway. This vision includes continuous alternating passing lanes in

both directions (also called a “2+1” configuration, see Figure EX 2) and wider shoulders, as shown in

Figure EX 1. Examples of sections of US 20 with passing lanes and shoulder are shown below.

Frequent Passing Lanes in Alternating Directions and Wider Shoulders is the Recommended Long-Term Configuration

US 20: Chester to Montana Safety Corridor Plan November 2016

FigureEX 1

Recommended Configuration2+1 Concept with Wider Shoulders


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Lane Types (Existing)2 lanes3 lanes (Dsecending)3 lanes (Ascending)

* * * * * * * 3 lanes (TWLT)4 lanes

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Lane Types (2+1 Concept)2 Lanes3 Lanes (Descending) - Existing3 Lanes (Descending) - New3 Lanes (Ascending) - Existing3 Lanes (Ascending) - New

* * * * * * * 3 Lanes (TWLT)4 Lanes8' Shoulders



Figure EX 2 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions

When implemented, this configuration is expected to have two primary benefits:

1. Reduce crashes by approximately 25-30%, resulting in annual savings of $700,000 - $1.35 million

per year in crash costs (see Figure EX 3).

Figure EX 3 Safety Performance by Crash Severity - Existing vs. Recommended Configuration

2. Long long-term efficient movement of motor vehicle traffic, resulting in people spending about

the same time following other vehicles 20 years from now, when traffic volumes are projected to

be 60% to 100% higher than they are currently, as they do today (see Figure EX 4).

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Fatal/Inury Crashes/Year (Observed)

PDO Crashes/Year (Observed)

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Crashes/Year

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Recommended Configuration



Figure EX 4 Operational Performance - Existing vs. Recommended Configuration

More information regarding existing and projected future conditions along US 20, the project

alternatives considered, and the resulting recommendations is included within the body of the

following report.

0% 20% 40% 60% 80%

Current Year

Year 2036

% Time Spent Following

2+1 Configuration

Existing Configuration

Section 2 Introduction

US 20: Chester to Montana Safety Corridor Plan November 2016 Introduction


INTRODUCTION

The approximately 53 miles of the US 20 corridor between Chester and the Montana state line serves

multiple purposes that are of importance to the local, regional, and national economies. During the

summertime, thousands of tourists use the corridor while traveling to and from Yellowstone National

Park, the famous fly fishing destination of the Henrys Fork River, Harriman State Park, Henrys Lake State

Park, Mesa Falls, and other recreation destinations. In the winter, the corridor serves as an alternate

route to I-15 for commercial vehicle traffic traveling to and from I-90, the longest Interstate Highway in

the country. In fact, according to ITD staff, US 20 from Idaho Falls to Montana carries the greatest

amount of freight traffic of all non-Interstate Highways in Idaho (Reference 1).

PROJECT PURPOSE AND BACKGROUND

Recognizing the importance of US 20, the Idaho Transportation Department (ITD) is evaluating how to

cost-effectively improve safety and provide for the long-term movement of people and goods along the

corridor. ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a

mixture of at-grade and grade-separated intersections. However, north of Chester, US 20 is still a rural

two-lane highway. Given that existing and projected traffic volumes are lower north of Chester, a four-

lane roadway in this northern section may not be a cost-effective solution, while maintaining the

existing two-lane rural section may not meet future needs. Therefore, this study evaluates several

options for reducing crashes and providing for efficient long-term traffic flow that are likely to be less

expensive than building a four-lane divided highway along this section of US 20 shown in Figure 1

(approximately mileposts 353 to 406).

This report summarizes the traffic safety and operations elements of the Corridor Study Tasks 3 and 4

of the US 20 North Safety Corridor Planning Process. This study updates and expands upon the traffic

safety and operations evaluation conducted for the 2006 US 20 Corridor Plan: Ashton to Montana State

Line (Reference 2) and identifies potential improvements for the corridor to be considered in the future

Corridor Plan Tasks 5 and 6. The safety analysis completed for this report is data-driven, focusing on

solutions with known, quantifiable benefits and using analysis procedures from the Highway Safety

Manual (HSM, Reference 3) to the extent practical.

DATA COLLECTION

Data has been collected for this project in order to review the existing roadway characteristics, analyze

crash data using the predictive method from the Highway Safety Manual, and analyze traffic operations

along the corridor. All analyses conducted for this study are at a planning level and are not based on

detailed field measurements. Most data used in these analyses has been taken from ITD’s IPLAN

website (http://iplan.maps.arcgis.com/home/) or provided by ITD District 6 or Headquarters staff. Data

collected by KAI includes:

http://iplan.maps.arcgis.com/home/

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Figure1Study Area, Lane Types, and Grades


Lane Types2 lanes3 lanes (Decending)3 lanes (Ascending)


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Roadway Grade0-3%3-6%>6%

Study Corridor

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Presence and length of passing lanes

Roadway lighting

Rumble strips

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Horizontal curve length and radius

ROADWAY SUMMARY

This section of US 20 is generally a two-lane rural highway with paved shoulders varying in width from

approximately 0 to 8 feet. Passing lanes are provided in certain locations, typically as climbing lanes on

steep grades, as shown in Figure 1. There are about 13.4 miles of northbound passing lanes and 3.4

miles of southbound passing lanes, representing coverages of approximately 25% and 6% of the

corridor, respectively. Center-turn lanes are provided in some areas with higher access densities,

including through Ashton and commercial areas of Island Park.

Figure 1 also shows the approximate roadway grades throughout the corridor. The southern end of the

corridor (i.e., south of the Henrys Fork River at milepost 363 through Ashton to Chester) travels through

relatively level terrain. North of milepost 363, the highway climbs into the mountains where the terrain

is generally rolling as it passes through the Henry’s Fork and Island Park calderas. North of Henry’s Lake

the highway climbs again to the Montana border at the Continental Divide.

OTHER ONGOING PROJECTS

At the writing of this report, there are at least two other ongoing projects related to safety and traffic

operations on this section of US 20:

ITD District 6 Wildlife Study - This project is examining wildlife migration and vehicle crash

patterns along the same segment of US 20, as well as on State Highway (SH) 87 and

developing recommendations to mitigate animal crashes along the corridor.

US 20, Jct SH 87 to Montana State Line (Targhee Pass Concept Study) – This project is

evaluating design options for US 20 from its intersection with SH 87 to the Montana state

line. The early recommendation from a traffic study completed for this project is for an

eastbound climbing lane on US 20 (Reference 4).

ORGANIZATION OF THE REPORT

The remainder of this report is organized as follows:

Section 3 – Safety and Operations Analysis – Describes the existing roadway and crash

trends and the existing and projected future traffic operations.



Section 4 – Project Alternatives – Identifies and evaluates potential treatments that may

reduce crashes and/or improve traffic operations.

Section 5 – Recommendations – Presents the recommended long-term configuration of this

section of US 20.

Section 3 Safety and Operations Analysis

US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis


SAFETY AND OPERATIONS ANALYSIS

This section summarizes the safety and operations analysis along the study section of US 20. Included in

this section are:

An analysis of traffic operations along the corridor under existing and future-year 2036

conditions

A review of historical crash data, including an analysis of the data using methods from the

Highway Safety Manual

TRAFFIC OPERATIONS

The traffic operations evaluation identifies the level of improvements that will be needed to

accommodate projected traffic growth on the corridor. Traffic operations were analyzed along US 20

using the two-lane highway analysis method from the Highway Capacity Manual 2010 (Reference 5).

Level-of-service (LOS) for two-lane highways is primarily based on the need for and availability of

passing opportunities (i.e., average travel speed and percent time spent following are the two

performance measures for US 20). The availability of passing opportunities was estimated for this

analysis using aerial imagery.

Existing Operations

Traffic volumes on US 20 are highly seasonal, as shown in Figure 2.

Figure 2 Year 2015 Traffic Volumes by Month (ATR #32 - Ashton)

This analysis captures the summer recreation period by analyzing the 30th highest hour. Volumes

representing the 30th highest hour were estimated from the year 2015 AADT volumes obtained from

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IPLAN by using data from ITD’s automatic traffic recorder (ATR) #32 (Ashton), which is located on US 20

at approximately milepost 377. The results of this analysis are shown in Figure 3, along with the

location of existing passing lanes. Appendix “A” contains the volume data for each segment.

Projected Year 2036 Operations

Year 2036 traffic volume projections were provided by ITD staff. These daily volumes were converted to

estimated future 30th highest hour volumes using the same factors as in the existing conditions analysis.

The results of this analysis are shown in Figure 3.

Many segments that are projected to operate at LOS “D” or worse in the year 2036 lack passing lanes in

one or both directions. Adding passing lanes to many of these segments improves operations in most

cases to LOS “B” or “C.” These are the target levels of service for new arterial roadways in rural rolling

and rural mountainous areas, respectively, in the current ITD Roadway Design Manual (Reference 6).

Comparison to 2006 Study

The preliminary operations results summarized previously are similar or worse than the results from

the 2006 corridor study. This is likely due to two factors:

1. Traffic volumes have increased by about 30% on this section of US 20 since the previous study’s

analysis was completed.

2. The 2006 study used a lower volume than the 30th highest hour due to the seasonal nature of

the roadway. The analysis shown in this memorandum uses the 30th highest hour.

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Figure3Existing Lane Types and Existing and Projected Traffic Operations




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Projected Year 2036 LOSCDE

Existing LOS (2015)BCD

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CRASH ANALYSIS

ITD provided crash data for the most recent five years for which data is available, 2010-2014, along US

20 and at select intersections. The crash data is summarized by segment in Appendix “A” and the raw

crash data provided by ITD is included in Appendix “B.”

Based on this data, the US 20 study corridor experienced an average crash rate of approximately 116

crashes per 100 million average vehicle miles traveled (AVMT) during this time period. This rate is

approximately 35 percent higher than the average rate for rural roadways in Idaho, which includes both

highways and local roads. It is also lower than the average rate in Idaho for US and State highways, but

those averages include urban and multi-lane highways, which are not directly comparable to this

corridor (Reference 7).

In order to identify the most effective improvement strategies, the analysis of the US 20 crash data

includes a review of existing crash data trends for the corridor, including at the selected intersections,

and an analysis of crash rates using the Highway Safety Manual.

Corridor-wide Crash Trends

Corridor-wide crash trends with respect to severity, road surface condition, and crash type are

summarized in the following sections.

Severity

Figure 4 summarizes crashes along the corridor by severity.

Figure 4 Crashes by Severity (2010 – 2014)

Just over one-quarter, approximately 27%, of all crashes on US 20 resulted in an injury or fatality. This

percentage is generally similar to, though slightly lower than, the statewide average of approximately

35% injury and fatal crashes for rural roads (Reference 7).

These crashes have a significant financial impact. Based on the economic cost of crashes contained in

ITD’s 2014 crash report (Reference 7), the estimated economic impact of all reported crashes along this

section of US 20 from 2010-2014 is approximately $50 million dollars.

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Weather

Road surface conditions can be a contributing factor to crashes,

particularly in areas prone to winter weather. Slick road surfaces can

result in higher crash rates than would be expected and weather-related

crashes may be better mitigated by operational improvements (e.g.,

snowplowing, de-icing), as opposed to geometric improvements. Figure 5

summarizes crashes by reported road surface condition.

Figure 5 Crashes by Road Surface Condition (2010 – 2014)

Over half, approximately 55%, of all crashes are reported to have occurred when there was some type

of winter weather roadway surface (i.e., ice, snow, or slush).

Weather-related crashes can fluctuate based on changing weather conditions (e.g., a snowy year

compared to a dry year) and based on changes in maintenance practices, which we understand ITD has

done recently. Figure 6 shows the crashes by reported road surface condition for each study year.

Figure 6 Annual Crashes by Road Surface Condition

The number of crashes on winter weather road surfaces has decreased from over 70 crashes per year in

2010 and 2011 to fewer than 30 crashes per year in 2013 and 2014. The number of crashes occurring

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on a dry roadway surface is more consistent. This number varies from a low of 28 crashes in 2010 to a

high of 39 crashes in 2012.

The variation in winter weather road surface crashes could

potentially be the result of changes in ITD snow and ice

removal practices implemented around 2012, yearly variations

in weather patterns, and/or a combination of the two (or other

unknown) factors. ITD provided data from the four road

weather information system (RWIS) stations it maintains along

the corridor: Fall River, Sheep Falls, Osborne Bridge, and

Henrys Lake. These stations record information regarding

weather and road surface conditions, including weather there

is snow or ice present on the road and the grip level of the

roadway.

Only one station, Henrys Lake, has data regarding the condition of the road surface before 2012. The

first complete year of road surface data at this station is 2011. Figure 7 summarizes the percentage of

time that this RWIS station reported ice or snow on the road surface or a grip level of less than 0.6,

which is ITD’s threshold for whether a road is considered slick. Given that this data sample is limited to

only four of five years and one of four stations along a corridor that is longer than 50 miles, it is difficult

to draw any conclusions from this data. It is presented here for information only.

Figure 7 Ice/Snow Conditions at Henrys Lake RWIS Station (2011 - 2014)

US 20, near Henrys Lake, had a grip level of less than 0.6 about 12-13% of the time during 2013 and

2014, compared to about 15-17% during 2011 and 2012. Winter weather related crashes were lowest in

2013 and 2014 when this station reported the lowest proportion of ice or snow covered roads.

However, winter weather related crashes were lower in 2012 than 2011, even though this particular

station reported ice or snow covered roadways a greater percentage of the time in 2012 than 2011.

Appendix “C” contains the weather information.

0% 5% 10% 15% 20%

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ITD should consider additional analyses at other locations throughout the state to better understand

the impacts its maintenance practices may be having on crashes during the winter.

Crash Type

Figure 8 summarizes crashes by type.

Figure 8 Crashes by Type (2010 – 2014)

Overturn crashes are the most common reported crash type, with about 30% of all crashes being

classified as such. These crashes may or may not involve a vehicle leaving the roadway. According to the

crash data, about 90% of the overturn crashes involved someone leaving the roadway. Combined with

fixed object and other off-roadway crashes, these single-vehicle roadway departure crashes make up

nearly half of all crashes on the roadway and are a point of emphasis in ITD’s 2013 Strategic Highway

Safety Plan (SHSP, Reference 8).

Other key findings from a review of this data include:

Animal crashes make up nearly 20% of the reported crashes

along the corridor (i.e., 81 crashes).

The other types of lane-departure crashes, side-swipe and

head-on crashes, account for just over 10% of reported

crashes (i.e., 48 crashes).

Crashes that are likely related to intersections or other

accesses (i.e., angle, turning, and rear-end crashes) represent about 8% of reported crashes

(i.e., 35 crashes).

Most (i.e., 27 out of 49) “other” crashes were reported as jackknife crashes.

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o The majority, (i.e., 24 out of 27), of the jackknife crashes occurred on reported ice,

snow, or slush covered roadways

Weather may be a contributing factor to the overturn crashes, as nearly all (i.e., 129 out of

131 crashes) are reported to have occurred on ice, snow, or slush covered roadways.

o Fixed object and other roadway departure crashes still make up approximately one-

third of all crashes on dry and wet roadways.

Intersection Crash Trends

Of the crashes on US 20, approximately 8 percent were located at intersections and other driveways.

This doesn’t include the crashes on the side streets. In order to evaluate the crash characteristics at

intersections along the corridor, crash data was obtained and reviewed for the following intersections

of US 20:

State Highway (SH) 87

Sawtelle Peak Road – Big Springs Loop Road

Big Springs Loop Road (southern intersection)

Yale-Kilgore Road

Mesa Falls Scenic Byway

SH 47

The number and severity of reported crashes at each intersection is summarized in Figure 9.

Figure 9 Intersection Crashes (2010 - 2014)

All of the intersections experienced less than or approximately one reported crash per year, making it

difficult to discern any patterns at individual intersections. All of the crashes at the three most northern

0 1 2 3 4 5 6 7

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SH 87

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intersections (i.e., SH 87, Sawtelle Peak Road, Big Springs Loop Road) are reported to have occurred on

ice or snow-covered roads. The crashes at Yale-Kilgore Road and SH 47 are reported to have occurred

on dry roads. No crashes were reported at the Mesa Falls Scenic Byway intersection.

There was one fatal crash at SH 47 when an individual riding a motorcycle was struck by a person

driving a car and thrown from his vehicle. According to the report, he was not wearing a helmet.

Relative Highway Safety Performance

The following section takes a closer look at the crash data by examining where on the corridor crashes

are occurring. For the purposes of this analysis, the corridor has been divided into 49 relatively

homogenous segments of varying lengths to allow for analysis according to the Highway Safety

Manual’s predictive method for rural two-lane, two-way roadways.

Three measures are first examined to review the safety performance of the US 20 corridor:

Observed Crash Rate – This is the number of reported crashes per 100 million vehicle miles

traveled on each segment.

Expected Crash Rate – This rate is calculated using the Highway Safety Manual’s predictive

method and represents the crash rate expected to occur based on the geometric and traffic

characteristics of the roadway. It is calculated using national models calibrated to Idaho

data (Reference 9) and the observed crash data. This rate accounts for the random variation

that tends to occur in crashes, providing a more reliable estimate of the safety performance

of a segment.

Highway Safety Corridor Analysis (HSCA) Score – The HSCA score provides greater weight to

fatal and serious injury crashes than the above measures. It is calculated by ITD for the

entire State highway system and the resulting scores are a relative measure of how each

segment is performing compared to the remainder of the statewide system. The scores

used in this analysis are taken from IPLAN for the year 2014.

Figure 10 shows the performance of the US 20 corridor with respect to each of these measures. For the

purposes of this analysis, the crash rate measures are shown in three categories with an equal number

of segments in each category (i.e., a relative high/medium/low categorization). The HSCA scores are

shown according to their ITD classification (i.e., they are relative to the statewide system and not just

the US 20 corridor).

Generally, the three measures are in approximate agreement with respect to the relative performance

of each segment. There are some variations between the two crash rate measures as to the relative

performance of certain segments; however these are differences of one category (e.g., a “red” segment

in one measure may show up as “yellow” in another, but no red segments show up as “green” in the

other). The segments shown in red in the expected crash rate portion of the figure are where we would

expect the greatest potential for return on geometric related safety improvements.

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Figure10Comparison of Crash Rates and HSCA Scores Along US 20


Expected Crash Rate (Crashes/100 MVM)48.6 - 64.364.3 - 83.283.2 - 120.5

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HSCA ScoreHighMediumLow

Observed Crash Rate (Crashes/100 MVM)0.0 - 54.854.8 - 147.6147.6 - 336.5

0 5 10 15 20 Miles



Most of the corridor falls into the “medium” tier for its HSCA score. The two exceptions are the section

through Ashton, which falls into the “high” tier, and the southern end of the corridor south of milepost

357, which falls into the “low” tier.

Observed vs. Expected Crash Rates

The observed and calculated expected crash rates vary by differing amounts, as shown in Figure 11.

Differences in the two rates are most likely due to one of the following reasons:

Temporal variations in the observed crash rate – Crashes are random events and where they

occur varies from one year to another. As a result, the observed crash rate for any given site

is likely to be different depending on the years of crash data included. This can especially be

an issue on a rural highway, such as US 20, with lower traffic volumes where slight changes

in the number of reported crashes can result in large changes in the crash rate. The

calculated expected crash rate overcomes this fluctuation in data by estimating the long-

term average crash rate.

Factors not fully captured in the HSM models influencing crashes – The HSM model used for

this study is based on data from several states and has been calibrated to Idaho statewide

conditions. However, there are still localized conditions that could be resulting in variations

from the expected crash rate. For the US 20 corridor, two factors that may be resulting in

more crashes than expected include:

o Winter weather crashes – As previously noted, over half of the reported crashes

took place on winter weather road surfaces. While the model has been calibrated to

Idaho conditions, this was a statewide calibration effort, including highways in the

drier and warmer parts of the state.

o Animal crashes – Animals were involved in about 20% of all crashes along the

corridor and about 24% of all single-vehicle crashes. This is nearly twice as high as

would be expected based on the HSM data (about 12% of all crashes are animal

related) or Idaho statewide data (about 13% of single-vehicle crashes are animal

related, Reference 6).



Figure 11 Expected vs. Observed Crash Rate

Crash Location by Type/Contributing Factor

Figure 12, Figure 13, and Figure 14 map out the density of crashes by type or contributing factor. The

figures show a relative density range, with an equal number of roadway segments in each of the three

categories (i.e., green segments represent the lowest third of densities, yellow segments represent the

middle third, and red segments are the most dense third of segments). The observed crash frequency is

included in these figures for comparison purposes.

The crash types and contributing factors that are mapped out are:

Winter weather road surface conditions

Animal crashes

Roadway departure crashes

Sideswipe/head-on crashes

Angle, turning, and rear-end crashes (i.e., crashes potentially related to accesses)

Notable findings from this preliminary analysis include:

There is some consistency between the locations with the greatest density of winter

weather road surface crashes and the highest expected crash rates indicating that winter

weather may be exacerbating existing roadway conditions that make these areas more

likely to have crashes than other areas on the corridor.

Roadway departure crashes are generally higher in areas with higher expected crash rates,

which may indicate geometric conditions, such as narrow shoulders or curves are the

primary contributing factor(s) to roadway departure crashes, in addition to weather.

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Figure12Expected Crash Rate, Winter Weather Road Surface Crashes, and Animal Crashes



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Animal Related Crashes0 Crashes/Mile0.1 - 2.2 Crashes/Mile2.2 - 10.0 Crashes/Mile

Winter Weather Road Surface Crashes0 - 2.2 Crashes/Mile2.2 - 5.8 Crashes/Mile5.8 - 16.3 Crashes/Mile

0 5 10 15 20 Miles

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Figure13Expected Crash Rate and Lane Departure Crashes



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Sideswipe/Head-on Crashes0.0 Crashes/Mile0.0 - 1.5 Crashes/Mile1.5 - 10.0 Crashes/Mile

Roadway Departure Crashes0.0 - 2.0 Crashes/Mile2.0 - 4.8 Crashes/Mile4.8 - 15.0 Crashes/Mile

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Figure14Expected Crash Rate, Access Density, and Crashes Potentially Related to Access



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Angle, Turning, and Rear-End Crashes0.0 Crashes/Mile0.0 - 1.0 Crashes/Mile1.0 - 6.7 Crashes/Mile

Access Density0.0 - 2.1 Accesses/Mile2.1 - 6.4 Accesses/Mile6.4 - 36.7 Accesses/Mile

0 5 10 15 20 Miles



Locations with a higher density of head-on and side swipe crashes are sometimes consistent

with the areas with a higher expected crash rate, but not to the same extent that roadway

departure crashes are.

Access density and the density of angle, turning, and rear end crash types are generally

correlated throughout the corridor, but not in all cases. This could be due to other access

related factors, in addition to density (e.g., volumes, spacing, sight distance).

Comparison to 2006 Study

The results described above were compared to the findings from the 2006 corridor study. This study

recommended access management, passing lanes, turn lanes, wildlife crossing studies/mitigation, and

widened shoulders, in addition to specific intersection projects. These recommendations are generally

consistent with the findings described above.

There are some notable differences between the crash data reviewed for this analysis and the crash

data included in the previous study:

Potential intersection and access related crashes (i.e., rear-end, turning, and angle crashes)

made up 25% of the crashes reviewed for the 2006 study, while they only make up about

8% of the crashes from 2010 to 2014.

Conversely, fixed object, overturn, and other loss of control type crashes made about 37%

of all crashes in the 2006 study, while they account for approximately 57% of all crashes

from 2010 to 2014.

The proportion of head-on and sideswipe crashes has also decreased from about 17% of all

crashes to 11% of all crashes.

The difference in the proportion of crash types could be due to random variations in crashes in general,

weather, projects implemented since the 2006 corridor study, changes in how crashes are reported,

other factors not listed here, or some combination of all of these factors.

SUMMARY

The following summarizes key observations regarding safety and operations on the US 20 corridor:

The crash analysis found relatively consistent trends with respect to the observed crash

rate, expected crash rate, and HSCA score.

Weather is a significant contributing factor to crashes on the corridor, with over half of all

crashes reportedly occurring on ice, snow, or slush covered roadway.

Roadway departure crashes are the most common crashes on the corridor, indicating a

potential to reduce crashes through countermeasures that lower the chance vehicles will

leave the roadway.



The LOS is expected to be “D” or worse by the year 2036 on most of the corridor during the

peak summer period.

These findings are generally similar to the previous 2006 study; although the percentage of

crashes occurring at intersections has decreased while the percentage of overturn and fixed

object crashes have increased.

Section 4 Project Alternatives

US 20: Chester to Montana Safety Corridor Plan November 2016 Project Alternatives


PROJECT ALTERNATIVES

Based on the analysis presented in the preceding section, several different potential countermeasures

that to cost-effectively reduce crashes and/or improve traffic operations were identified and reviewed.

This section summarizes the treatments considered and the results of an analysis of their effectiveness.

PROJECT ALTERNATIVES CONSIDERED

The improvement alternatives considered treatments to add capacity and countermeasures to reduce

crashes. Sources of potential countermeasures include the Federal Highway Administration’s Proven

Safety Countermeasures (Reference 10), ITD’s SHSP, the Highway Safety Manual, and our experience

from previous safety and operations related work. We have identified the following improvements and

countermeasures that could potentially be deployed along the corridor systematically or at select

locations:

Capacity and Safety

Improvements/Countermeasures

o 2 + 1 Configuration (i.e.,

alternating passing lanes)

o Wider shoulders

o Access management

Safety Countermeasures

o Edgeline rumble strips

o Centerline rumble strips

o Safety Edge

o Enhancing clear zones

Each of the treatments listed above was evaluated with respect to its expected effectiveness at

reducing crashes along the corridor. The addition of passing lanes was also reviewed from an

operations perspective. This analysis is described in the following sections.

2 + 1 Configuration

Providing passing lanes in alternating directions

along two-lane highways can be a cost-effective

means to reduce crashes and improve traffic

operations without incurring the expense of

constructing a complete four-lane facility. This

pattern of alternating passing lanes is often

referred to as a “2 + 1” configuration, or, in Texas,

a “Super 2” configuration (Reference 11). Figure

15 provides a conceptual illustration of the 2+1

configuration. Today, travelers on US 20

infrequently encounter passing lanes. As

previously discussed, this is expected to contribute

to increased delay along the corridor as traffic

volumes grow. With the 2+1 configuration, passing

Existing Passing Lane on US 20 South of SH 87



lanes are provided in alternating directions as frequently as practical along the corridor.

Figure 15 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions

Currently, one section of alternating passing lanes exists on US 20 from approximately milepost 390 to

392, where there is a northbound passing lane from about milepost 390 to milepost 391 and then a

southbound passing lane from about milepost 391 to milepost 392.

Figure 16 illustrates a potential configuration for how a 2+1 configuration might look on US 20. The

concept, as shown, includes about 26 new miles of passing lanes, which is about half the length of the

corridor. To develop this concept, passing lanes are proposed to be added to the existing 2-lane

sections using the following criteria:

Generally, the passing lanes are alternated from one side to the other side every mile

(including transition, so the lanes will be a bit shorter than a mile each).

o This length is based on reviewing previous research on the 2+1 concept in the US

and Europe, and best practices for passing lane design (References 11-14).

Exceptions to the mile spacing occur as follows:

o Transitions are avoided on curves

o The third lane will be a turn lane at major intersections where there is not already a

turn lane

o A third lane is maintained on the uphill side of any grade of 3% or greater

Further engineering analysis would be needed to determine the exact location and lengths of each new

passing lane.

Figure 17 shows the expected reduction in crashes as a result of implementing this proposed

configuration. Based on research summarized in the HSM, the 2+1 configuration is expected to reduce

crashes by approximately 25% wherever new passing lanes are added, which is shown on the figure as

about half of the corridor.

Another benefit of providing regular passing opportunities is improved traffic flow. Figure 18 and Figure

19 show how traffic operations would be improved by implementing the 2+1 concept under both

existing and projected year 2036 conditions. Notably, the level-of-service (LOS) in the year 2036 can be

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Figure16Lane Configurations (Existing vs. 2+1)


Lane Types (Existing)2 lanes3 lanes (Descending)3 lanes (Ascending)


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Figure17Comparison of Expected Crash Rates (Existing vs. 2+1 Configuration)




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Change in Expected Crash Rate with 2+10%22-28%


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Figure18Existing Operations Comparison - Existing vs. 2+1 Configuration




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Existing Year LOS with 2+1 ConfigurationBCD

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Figure19Year 2036 Operations Comparison - Existing vs. 2+1 Configuration




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Year 2036 LOS with 2+1 ConfigurationBCDE

Year 2036 LOS with Existing LanesCDE

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expected to be “C” or better along much of the corridor, with a few sections of LOS “D,” and one

segment of LOS “E,” which is not affected by the 2+1 configuration. Whereas, without the additional

passing lanes, the LOS is expected to be “D” or “E” along most of the corridor by 2036.

Wider Shoulders

Wider shoulders have been proven to reduce crashes

on rural two-lane highways. This effect has been

quantified for shoulders up to 8 feet in width in the

Highway Safety Manual. Shoulder widths on the

corridor currently vary from 0 feet to 8 feet.

Figure 20 summarizes where shoulders on US 20 could

potentially be widened to 8 feet and what the

expected change in crashes would be if this were to

occur.

Nearly 40 miles of the corridor could benefit from

shoulders being widened to 8 feet. The expected crash

reduction benefit of widening shoulders depends on

the current width of the existing shoulders. On the US 20 corridor, based on the crash modification

factors in the HSM, the expected safety benefit of 8-feet wide shoulders ranges from approximately

13% to 33%, with the greater benefit expected where existing shoulders are the most narrow.

ITD’s current standard shoulder width is 6 feet (Reference 5). Widening shoulders that are narrower

than this standard to 6 feet would also have a benefit, though it would not be as great as widening to 8

feet. A comparison of widening shoulders to 6 feet versus 8 feet is included in Appendix “D.”

Existing 8’ Shoulder on US 20 South of Ashton

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Figure20Comparison of Expected Crash Rates (Existing vs. Consistent 8' Shoulders)


Existing Shoulder Width8 Feet6 Feet4-5 Feet2-3 Feet

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Change in Expected Crash Rate0%1-7%8-14%15-21%22-28%29-35%


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Edgeline Rumble Strips

Rumble strips are one of FHWA’s Proven Safety

Countermeasures that the agency is encouraging

jurisdictions to implement. While implementing edgeline

rumble strips on a systematic basis can be a cost-effective

means to reduce run-off-the-road crashes, there are

considerations that need to be accounted for:

Proximity to residences and lodging – The noise

created by a vehicle running over a rumble strip

can be heard from a distance and may disturb

surrounding residents. Our understanding is that ITD’s current guidance is to not install

rumble strips on highways when they travel through areas with residential uses.

Impacts to people bicycling – Rumble strips can also create a nuisance for people bicycling

on the shoulder. Providing wide shoulders (i.e., 6’-8’ wide) anywhere rumble strips are

installed can help avoid these conflicts.

Minimum shoulder width – ITD’s standard drawings (Reference 15) note that rumble strips

should be installed only when the width of the shoulder is 4’ or greater. For shoulder widths

of at least 2’, but less than 4’, rumble stripes, which are only 6” wide and include the

edgeline striping, may be installed.

Figure 21 illustrates candidate locations for edgeline rumble strips, taking into account the above

considerations, as well as the expected crash reduction benefit of providing them at these locations.

There are currently about 9 miles of edgeline rumble strips on US 20 and the figure includes

approximately 28 additional miles of rumble strips.

The expected crash reduction benefit of edgeline rumble strips is calculated using the crash

modification factor (CMF) contained in NCHRP Report 641 Guidance for the Design and Application of

Shoulder and Centerline Rumble Strips (Reference 16). This CMF calculates a reduction in single vehicle

run-off-the-road crashes, based on the observed frequency of these crashes, or if there is no observed

history, the expected proportion based on data contained in the HSM. Based on these calculations, the

expected safety benefit of edgeline rumble strips is a reduction in crashes of about 3% to 15% wherever

they are installed.

Existing Edgeline Rumble Strips on US 20 South of Ashton

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Figure21Comparison of Expected Crash Rates (Existing vs. Edgeline Rumble Strips)


Existing Edgeline Rumble StripsPotential Edgeline Rumble StripsNot a Candidate Site

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Centerline Rumble Strips

Centerline rumble strips are deployed primarily to reduce crossover

type crashes, such as head-on collisions and run-off-the-road left

crashes. Similar to edgeline rumble strips, the potential noise impacts

on surrounding development should be considered before selecting a

location to install them. ITD also recommends that centerline rumble

strips should not be installed when the combined lane and shoulder

width is less than 12’ or where two-way left-turn lanes are present

(Reference 5). Figure 22 illustrates potential candidate locations along

the corridor for centerline rumble strips, taking into account these

considerations. It includes approximately 46 miles of potential center

rumble strips. The figure also summarizes the expected crash

reduction benefit of providing them at these locations, which is about a

9% reduction in all crashes based on the CMF in NCHRP Report 461

(Reference 16).

Enhancing Clear Zones

Removing trees and other fixed objects from the roadside can

provide additional clear zones for vehicles that leave the

roadway. Removing roadside trees also has the additional

benefits of providing for more sunlight on the roadway during

winter, which can result in faster snow/ice melt, and providing

a greater viewing area for seeing wild animals that may enter

the roadway. Figure 23 shows the locations along the US 20

corridor where the immediate clear zones could potentially be

improved and the expected crash reduction benefit of

improving them, based on the expected decrease in the

roadside hazard rating described in the Highway Safety

Manual.

Access Management

Access points introduce turning movement conflicts to the highway. Reducing the number of accesses

and/or restricting certain movements at specific locations can reduce access-related crashes. Any type

of potential access modification needs to be considered within the context of how it may affect

adjacent development served by the access and the implications of focusing more traffic at other

intersections and driveways. The 2006 corridor study recommended access modifications in a few

specific locations. Figure 24 illustrates these locations and the expected crash reduction benefit

associated with those access modifications.

Center Rumble Strips on SH 55 North of Banks Image Source: Google Streetview

Previously Enhanced Clear Zone on US 20 South of Harriman State Park

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Figure22Comparison of Expected Crash Rates (Existing vs. Center Rumble Strips)


Potential Center Rumble StripsNot a Candidate Site

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Figure23Comparison of Expected Crash Rates (Existing vs.Improved RHR)


Roadside Hazard Rating (RHR) ChangeNo Change in RHRImprove RHR

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Figure24Comparison of Expected Crash Rates (Existing vs.Access Management)


No Access ManagementPotential Access Management

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Change in Expected Crash Rate0%1-7%8-15%


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Other Considerations

Other treatments that were considered as part of this study or by one of the ongoing projects

previously referenced include:

Safety Edge

Roadside tree clearing

Animal crash reduction strategies

These treatments are discussed below.

Safety Edge

Safety Edge is a tool that is used when paving the edge of a roadway. It provides an approximately 30-

degree tapered angle at the end of the road and helps reduce run-off-the-road crashes. Safety Edge is

also one of FHWA’s Proven Safety Countermeasures. This treatment could potentially be applied to

most sections of US 20 without guardrail. The expected reduction in crashes wherever this treatment is

installed is about 6% (Reference 17).

Roadside Tree Clearing

The benefits of removing trees immediately adjacent to the road to provide adequate clear zones were

previously discussed in the Enhancing Clear Zones section above. However, there may also be benefits

to removing trees further out from the highway in order to provide:

More sun on the roadway during the winter to aid in snow and ice melting

Greater viewing area of wildlife approaching the road

For the above reasons, ITD previously removed all trees within approximately 100’ of the centerline of

US 20 from approximately milepost 369 to milepost 377. According to a solar model run by ITD staff,

this tree removal project should have provided up to 4 hours of additional direct sunlight in the winter.

Figure 25 illustrates other locations that may be candidates for similar treatment. These locations were

identified based on a survey of existing tree stands within 100’ of the highway using aerial imagery. Not

all of these locations were previously identified for enhanced clear zones because the trees may be

located on hillsides adjacent to US 20 and/or behind guardrail in several locations. Additional modeling

would need to be conducted to identify how much additional sunlight could be gained at these

locations. ITD has already completed this analysis for Targhee Pass (i.e., approximately milepost 402 to

milepost 406).

Priority areas for further analysis would include those areas where both winter weather and animal

crashes are highest, as also shown on Figure 25 (i.e., mileposts 393 to 394, 386 to 384, and 366 to 367).

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Figure25

Winter Weather Road Surface Crashes, Animal Crashes and Potential Sites to Consider Shade Reduction


Potential Shade Reduction SiteNot a Candidate Site

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Animal Related Crashes0 Crashes/Mile0.1 - 2.2 Crashes/Mile2.2 - 10.0 Crashes/Mile

Winter Weather Road Surface Crashes0 - 2.2 Crashes/Mile2.2 - 5.8 Crashes/Mile5.8 - 16.3 Crashes/Mile



Animal Crash Reduction Strategies

The ongoing ITD District 6 Wildlife Study is developing recommendations for treatments along seven

different segments of US 20. Expected benefits of the treatments are also being calculated as part of

this project. Draft recommendations from this project include a number of strategies, including wildlife

under/over-passes, wildlife fencing, warning systems, lower speed limits, and sight distance

improvements.

Section 5 Recommendations

US 20: Chester to Montana Safety Corridor Plan November 2016 Recommendations


RECOMMENDATIONS

This section provides a comparison of the project alternatives reviewed in the previous section and

summarizes the recommended long-term configuration of this section of US 20 and the expected

benefits of this configuration.

COMPARATIVE SUMMARY OF ALTERNATIVE TREATMENTS

Figure 26 provides a summary of the overall expected change in crashes with each of the proposed

treatments and Figure 27 and Figure 28 summarize the expected change in the crashes resulting from

each of the proposed treatments along the corridor.

Figure 26 Crash Frequency on US 20 Corridor with Potential Treatments

Both the calculated expected crash frequency and the observed crash frequency from the crash data

reviewed for this study are shown in Figure 26. As was noted before, the expected crash frequency

provides, in theory, a more reliable estimate of the long-term average crash frequency. At the same

time, there may be factors on this corridor that are influencing crashes that are not accounted for in the

HSM’s models (e.g., weather, animal migration patterns). Therefore estimates based on both measures

are included in order to show the likely range of crash frequencies with each treatment.

As shown in the figures, the 2+1 configuration and widening shoulders to a uniform 8’ width are

expected to provide the greatest reductions in crashes. Further, the 2+1 configuration is expected to

provide for long-term traffic operations, without the expense of constructing a four-lane highway, as

was previously shown in Figure 19.

0 10 20 30 40 50 60 70 80 90

Based on Observed Crashes

Based on Expected Crashes

Crashes/Year

Center Rumble Strips

Edgeline Rumble Strips

8' Shoulders

2+1 Configuration

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Figure27Comparison of Expected Change in Crash Rates (2+1, 8' Shoulders, and Improved RHR)


Roadside Hazard Rating Improvement

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Expected Change in Crash Rate0%1-7%8-14%15-21%22-28%29-35%

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2+1 Configuration


Figure28Comparison of Expected Change in Crash Rates (Rumble Strips and Access Management)


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Expected Change in Crash Rate0%1-7%8-14%15-21%

Expected Change in Crash Rate0%1-7%8-14%15-21%

Access ManagementCenterline Rumble StripsEdgeline Rumble Strips



RECOMMENDED LONG-TERM CONFIGURATION OF US 20

Given the above findings, our recommendation is that the 2+1 configuration with 8’ shoulders should

be adopted as the long-term vision for the US 20 corridor between Chester and the Montana State line.

Additionally, other less significant treatments, such as the other alternatives evaluated here (i.e.,

rumble strips, Safety Edge, enhancing clear zones, and access management), should still also be

considered in a case-by-case basis as the roadway is reconstructed. These treatments can often be

implemented at a low-cost as part of another project and are not dependent on the ultimate

configuration of the highway being built.

Figure 30 illustrates where passing lanes could potentially be added and shoulders widened to 8’ along

the US 20 corridor, as noted in the previous section. Appendix “E” contains example photos of areas

recommended treatment.

Expected Benefits of Recommended Configuration

The recommended configuration provides both safety and operational benefits, which are described in

the following sections.

Safety Benefits

Figure 30 also summarizes the expected reduction in crashes along the corridor, while Figure 29

summarizes the expected safety performance of the recommended configuration compared to existing

conditions for all crashes, as well as crashes by severity. This summary is provided based on applying

the CMFs for the treatments to both the calculated expected crash frequency and the observed from

historical data crash frequency.

Figure 29 Safety Performance by Crash Severity - Existing vs. Recommended Configuration

In total, the recommended configuration is expected to reduce all crashes on the corridor by 25-30%,

fatal/injury crashes by about 20-25%, and property damage only (PDO) crashes by 25-30%. This results

in an economic benefit of approximately $700,000 to $1,350,000 per year in crash cost savings, or $14

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PDO Crashes/Year (Observed)

Total Crashes (Observed)

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Total Crashes (Expected)

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Recommended Configuration

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Figure30

Estimated Reduction in Crashes2+1 Configuration and 8' Shoulders



* * * * * * * 3 Lanes (TWLT)4 Lanes8' Shoulders

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382

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Estimated Change in Crash Rate0%8-14%15-21%22-28%29-35%36-43%

0 5 10 15 20 Miles

¯



million to $27 million over a 20-year design life, depending on whether the expected or observed crash

frequency is used as the basis.

Operational Benefits

Providing frequent and regular passing opportunities will improve traffic flow on the corridor by

reducing the amount of time people spend following slower vehicles. Figure 18 and Figure 19 previously

summarized the expected level-of-service of the corridor with the 2+1 configuration under existing and

projected year 2036 conditions. Figure 31 summarizes the overall operational performance of the

recommended configuration compared to the existing conditions.

Figure 31 Operational Performance - Existing vs. Recommended Configuration

As previously noted, the 2+1 configuration is expected to provide for a LOS of “C” or better along much

of the corridor in the year 2036. It is also expected to reduce the percentage of time that people spend

following from an average of 73% in the year 2036 to 63%, during peak conditions in the peak direction.

The percent time spent following will be lower in the off-peak direction and during most of the year.

Next Steps

The recommended configuration requires widening the existing highway as little as 2 feet (i.e.,

widening the shoulder from 6 to 8 feet) and by as much as 16 feet (i.e., adding a 12-foot passing lane

and widening the shoulder by 4 feet). An engineering evaluation of the level of effort that would be

required to perform this widening was not completed for this study. Further engineering analysis will be

needed to determine the exact location and lengths of each new passing lane, as well as the level of

effort that will be required to widen the highway to accommodate the additional passing lanes and

shoulder widths. This subsequent analysis should estimate the costs of implementing the concept so

that a benefit-cost ratio can be calculated to verify the cost-effectiveness of the proposed projects.

0% 20% 40% 60% 80%

Current Year

Year 2036

% Time Spent Following

2+1 Configuration

Existing Configuration

Section 6 References

US 20: Chester to Montana Safety Corridor Plan November 2016 References


REFERENCES

1. E-mail correspondence from Jeff Marker, Idaho Transportation Department. August 2016.

2. Idaho Transportation Department. US 20 Corridor Plan: Ashton to Montana State Line. Prepared

by HDR Engineering. July 2006.

3. American Association of State Highway and Transportation Officials. Highway Safety Manual,

1st Edition. 2010.

4. Idaho Transportation Department. Preliminary Traffic Assessment for US 20, JCT SH 87 to

Montana St Line, Targhee Pass. 2015.

5. Transportation Research Board. Highway Capacity Manual. 2010.

6. Idaho Transportation Department. Roadway Design Manual. August 2013.

7. Idaho Transportation Department. Idaho Traffic Crashes 2014.

http://itd.idaho.gov/ohs/2014Data/Analysis2014final.pdf.

8. Idaho Transportation Department. Strategic Highway Safety Plan Update. April 2013.

9. Abdel-Rahim, A. and M. C. Sipple. Calibrating the Highway Safety Manual Crash Prediction

Models for Idaho’s Highways. Idaho Transportation Department, FHWA-ID-14-225. December

2014.

10. Federal Highway Safety Administration. Proven Safety Countermeasures.

http://safety.fhwa.dot.gov/provencountermeasures/. Accessed June 2016.

11. M. D. Woolridge, et al. Design Guidelines for Passing Lanes on Two-Lane Roadways (Super 2).

Prepared for Texas Department of Transportation. September 2001.

12. National Cooperative Highway Research Program. Application of European 2+1 Roadway

Designs. Research Results Digest, No. 275. April 2003.

13. American Association of State Highway and Transportation Officials. A Policy on Geometric

Design of Highways and Streets, 6th Edition. 2011.

14. J. L. Gattis, R. Bhave, and L. K. Duncan. Alternating Passing Lane Lengths. Transportation

Research Record: Journal of the Transportation Research Board, No. 1961. 2006.

15. Idaho Transportation Department. Shoulder Rumble Strips and Rumble Stripes, Standard

Drawing. November 2000.

http://itd.idaho.gov/ohs/2014Data/Analysis2014final.pdf

http://safety.fhwa.dot.gov/provencountermeasures/

US 20: Chester to Montana Safety Corridor Plan November 2016 References


16. National Cooperative Highway Research Program. Report 641 – Guidance for the Design and

Application of Shoulder and Centerline Rumble Strips. 2009.

17. Federal Highway Administration. Safety Edge.

http://safety.fhwa.dot.gov/provencountermeasures/fhwa_sa_12_010.cfm. Accessed

September 2016.

http://safety.fhwa.dot.gov/provencountermeasures/fhwa_sa_12_010.cfm

Appendix A Geometric, Traffic, and Crash

Data by Segment

Appendix A - Geometric, Traffic, and Crash Data by Segment

Route FromMP ToMP Con.RightLane Con.LeftLane Rightlanes Leftlanes Passing_Lane

20 353.1 353.4 1 1 1 1 Not Present

20 353.4 354.0 1 1 1 1 Not Present

20 354.0 355.0 1 1 1 1 Not Present

20 355.0 356.3 1 1 1 1 Not Present

20 356.3 356.7 1 1 1 1 Not Present

20 356.7 360.1 1 1 1 1 Not Present

20 360.1 360.5 1 1 1 1 Not Present

20 360.5 361.4 1 1 1 1 Not Present

20 361.4 362.2 1 1 1 1 Not Present

20 362.2 362.5 1 1 1 1 Not Present

20 362.5 363.3 1 1 1 1 Not Present

20 363.3 366.2 1 1 2 1 Present (1 lane)

20 366.2 366.7 1 1 2 1 Present (1 lane)

20 366.7 367.3 1 1 2 1 Present (1 lane)

20 367.3 367.7 1 1 2 1 Present (1 lane)

20 367.7 368.1 1 1 2 2 Present (2 lanes)

20 368.1 369.0 1 1 1 1 Not Present

20 369.0 369.6 1 1 1 1 Not Present

20 369.6 374.9 1 1 1 1 Not Present

20 374.9 375.4 1 1 1 1 Not Present

20 375.4 376.8 1 1 1 1 Not Present

20 376.8 377.2 1 1 1 1 Not Present

20 377.2 378.4 1 1 2 1 Present (1 lane)

20 378.4 378.6 1 1 1 1 Not Present

20 378.6 379.0 1 1 1 1 Not Present

20 379.0 380.0 1 1 1 1 Not Present

20 380.0 382.1 1 1 1 2 Present (1 lane)

20 382.1 382.3 1 1 1 1 Not Present

20 382.3 382.7 1 1 1 1 Not Present

20 382.7 383.8 1 1 1 1 Not Present

20 383.8 385.8 1 1 2 1 Present (1 lane)

20 385.8 386.7 1 1 1 1 Not Present

20 386.7 387.6 1 1 1 1 Not Present

20 387.6 389.1 1 1 1 1 Not Present

20 389.1 389.4 1 1 1 1 Not Present

20 389.4 392.2 1 1 2 1 Present (1 lane)

20 392.2 392.9 1 1 1 1 Not Present

20 392.9 394.0 1 1 1 1 Not Present

20 394.0 395.1 1 1 1 1 Not Present

20 395.1 397.0 1 1 2 1 Present (1 lane)

20 397.0 399.6 1 1 2 1 Present (1 lane)

20 399.6 401.3 1 1 1 2 Present (1 lane)

20 401.3 401.5 1 1 1 2 Present (1 lane)

20 401.5 402.3 1 1 1 1 Not Present

20 402.3 404.0 1 1 1 1 Not Present

20 404.0 404.6 1 1 1 1 Not Present

20 404.6 405.3 1 1 1 1 Not Present

20 405.3 405.7 1 1 1 1 Not Present

20 405.7 406.3 1 1 1 1 Not Present


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

RightLength LeftLength Median LaneWidth ShldWidth ShldType MedWidth

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

TWLT 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

None 12 8 Paved 0

2.9 None 12 4 Paved 0




0.4 0.4 None 12 4 Paved 0

None 12 4 Paved 0

None 12 6 Paved 0

None 12 6 Paved 0

None 12 6 Paved 0

None 12 6 Paved 0

None 12 6 Paved 0

1.2 None 12 2 Gravel 0

None 12 2 Gravel 0

None 12 6 Paved 0

None 12 6 Paved 0


TWLT 12 3 Paved 0

TWLT 12 3 Paved 0

TWLT 12 3 Paved 0

2 None 12 3 Paved 0

None 12 8 Paved 0

TWLT 12 8 Paved 0

None 12 8 Paved 0

TWLT 12 8 Paved 0



TWLT 12 6 Paved 0

None 12 6 Paved 0

None 12 5 Paved 0


None 12 5 Paved 0


TWLT 12 5 Paved 0

TWLT 12 5 Paved 0

None 12 5 Paved 0

None 12 5 Paved 0

None 12 5 Paved 0

None 12 5 Paved 0


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

Lighting AutoSpdEnf AADT2015 AADT2040 Capacity LOS2015 LOS2036

Not Present No 5000 9,887 0.37 D E







Present No 4800 8,433 0.37 D E


Not Present No 4100 6,778 0.37 C D
























Not Present No 3800 6,331 0.35 C C











Not Present No 3100 5,085 0.32 D D






Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

LSpeedLimit RSpeedLimit Crash_Yrs Rear_End Animal Turning Head-on

65 65 5 0 1 0 0

65 65 5 0 0 0 0

65 65 5 0 0 0 0

65 65 5 0 0 0 0

65 65 5 0 0 0 0

65 65 5 3 1 1 1

65 65 5 0 0 0 0

45 45 5 0 1 6 1

65 65 5 0 1 0 0

65 65 5 1 0 0 0

65 65 5 0 1 0 0

65 65 5 0 1 0 1

65 65 5 0 0 0 0

65 65 5 1 2 0 0

65 65 5 0 0 0 0

65 65 5 0 0 0 0

65 65 5 0 2 0 0

65 65 5 0 0 0 0

65 65 5 2 8 0 0

65 65 5 0 0 0 1

65 65 5 1 1 0 0

65 65 5 0 3 0 0

65 65 5 0 4 0 0

65 65 5 0 0 0 0

65 65 5 0 0 0 0

65 65 5 1 1 0 1

65 65 5 0 6 0 0

65 65 5 0 1 0 0

45 45 5 1 0 0 0

45 45 5 0 0 1 0

65 65 5 1 5 1 2

65 65 5 0 4 0 1

65 65 5 0 2 0 1

65 65 5 1 5 0 0

45 45 5 0 3 0 1

45 45 5 1 2 0 0

65 65 5 0 2 0 0

45 45 5 1 3 0 0

65 65 5 0 1 3 1

65 65 5 2 2 0 0

65 65 5 1 1 0 1

65 65 5 0 1 0 0

65 65 5 0 0 0 0

45 45 5 1 1 2 1

65 65 5 0 9 0 0

65 65 5 0 1 0 0

65 65 5 0 2 0 0

65 65 5 0 0 0 0

65 65 5 0 3 0 0


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

Oveturn Side Swipe Fixed Object Pedestrian Bicycle Other PDO Injury Fatal

1 0 0 0 0 0 2 0 0

1 0 0 0 0 0 0 1 0

1 2 0 0 0 0 2 1 0

1 1 0 0 0 0 2 0 0

0 1 0 0 0 0 0 1 0

3 4 2 0 0 2 10 7 0

1 0 0 0 0 0 0 1 0

1 2 0 0 0 0 3 7 1

1 0 1 0 0 0 3 0 0

0 0 0 0 0 0 1 0 0

1 1 0 0 0 0 2 0 1

7 1 10 0 0 1 14 7 0

2 0 4 0 0 0 5 1 0

1 1 0 0 0 3 6 2 0

0 0 1 0 0 0 1 0 0

1 0 0 0 0 0 1 0 0

1 0 1 0 0 2 4 2 0

0 0 2 0 0 0 2 0 0

20 2 8 0 0 3 30 13 0

2 0 2 0 0 0 3 2 0

3 1 2 0 0 2 6 4 0

0 0 1 0 0 0 2 1 1

5 0 1 0 0 1 9 2 0

0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0

1 0 0 0 0 2 6 0 0

6 1 4 0 0 1 13 5 0

1 0 0 0 0 0 1 1 0

0 0 0 0 0 0 1 0 0

0 1 0 0 0 0 1 1 0

9 3 8 0 0 4 24 9 0

2 1 0 0 0 0 6 2 0

2 1 4 0 0 2 11 1 0

2 0 1 0 0 3 10 2 0

0 2 1 0 0 0 5 2 0

8 4 5 0 0 5 17 8 0

0 0 1 0 0 0 2 1 0

6 2 4 0 0 1 15 2 0

4 2 5 0 0 5 15 4 2

9 1 1 0 0 1 12 4 0

9 3 3 0 0 3 12 9 0

2 0 2 0 0 2 5 2 0

0 0 0 0 0 0 0 0 0

4 1 3 0 0 1 12 2 0

2 0 5 0 0 2 16 2 0

3 0 2 0 0 0 5 1 0

3 0 1 0 0 3 8 1 0

2 0 4 0 0 0 4 2 0

3 0 2 0 0 1 7 2 0


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

Fat_Inj Low_Light Wet_Snow_Ice Work_Zone Alcohol Crash_Total Crash_Rate

0 1 1 0 0 2 73.1

1 0 1 0 0 1 18.3

1 3 1 0 0 3 32.9

0 0 0 0 0 2 16.9

1 0 0 0 0 1 27.4

7 5 9 0 0 17 54.8

1 0 0 0 0 1 27.4

8 2 1 0 0 11 139.5

0 1 1 0 0 3 44.7

0 0 1 0 0 1 44.5

1 2 0 0 0 3 50.1

7 5 10 0 0 21 96.8

1 1 5 0 0 6 160.4

2 4 4 1 0 8 178.2

0 0 1 0 0 1 33.4

0 0 1 0 0 1 33.4

2 3 2 3 0 6 89.1

0 1 0 1 0 2 44.5

13 15 29 2 0 43 108.4

2 2 3 0 0 5 152.2

4 5 6 0 0 10 108.7

2 3 1 0 0 4 152.2

2 7 5 0 0 11 139.5

0 0 0 0 0 0 0.0

0 0 0 0 0 0 0.0

0 4 3 0 0 6 91.3

5 10 12 0 0 18 142.3

1 2 0 0 0 2 166.0

0 0 0 0 0 1 41.5

1 0 1 0 0 2 30.2

9 11 19 0 0 33 274.0

2 5 2 0 0 8 147.6

1 5 8 0 0 12 221.4

2 5 6 0 0 12 115.4

2 3 3 0 0 7 336.5

8 8 19 0 0 25 125.4

1 1 1 0 0 3 60.2

2 5 13 0 0 17 217.1

6 8 17 0 0 21 307.7

4 3 12 0 0 16 135.7

9 6 15 0 0 21 130.2

2 2 6 0 0 7 66.4

0 0 0 0 0 0 0.0

2 2 13 0 0 14 299.7

2 12 8 0 0 18 187.2

1 2 4 0 0 6 176.8

1 4 5 0 0 9 227.3

2 0 6 0 0 6 265.1

2 4 7 0 0 9 265.1


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

Crash_FreqObs Crash_FreqExp Crash_RateExp PaveCond Grade_Asc

0.40 0.37 66.77 Poor 0.00

0.20 0.59 53.49 Poor 0.00

0.60 1.02 55.76 Poor 0.00

0.40 1.20 50.41 Poor 0.00

0.20 0.40 54.69 Poor 0.00

3.40 3.86 62.22 Poor 0.00

0.20 0.54 73.78 Poor 0.00

2.20 1.18 74.74 Poor 0.00

0.60 0.82 61.07 Good 0.00

0.20 0.30 66.57 Good 0.00

0.60 0.70 58.78 Good 0.00

4.20 3.09 71.13 Good 0.00

1.20 0.67 89.36 Fair 3.07

1.60 0.84 93.50 Fair 4.09

0.20 0.38 63.83 Fair 3.92

0.20 0.29 48.62 Fair 0.00

1.20 1.22 90.44 Fair -3.53

0.40 0.52 58.20 Good 0.00

8.60 5.70 71.90 Good 0.00

1.00 0.56 85.56 Good -3.78

2.00 1.31 71.11 Good 0.00

0.80 0.49 92.90 Good 0.00

2.20 1.15 72.71 Poor 0.00

0.00 0.17 64.30 Poor 0.00

0.00 0.30 57.00 Good 0.00

1.20 0.85 64.52 Good 0.00

3.60 1.72 67.84 Fair 0.00

0.40 0.21 86.21 Good 0.00

0.20 0.38 77.96 Good 0.00

0.40 0.97 73.14 Good 0.00

6.60 2.00 83.18 Good 0.00

1.60 0.82 75.85 Fair 0.00

2.40 0.89 82.02 Fair 0.00

2.40 1.34 64.33 Fair 0.00

1.40 0.42 101.79 Fair 0.00

5.00 2.82 70.83 Fair 0.00

0.60 0.68 68.65 Good 0.00

3.40 1.59 101.63 Good 0.00

4.20 1.52 111.00 Good 0.00

3.20 1.97 83.51 Good 0.00

4.20 2.05 63.64 Good 0.00

1.40 1.48 70.21 Good 0.00

0.00 0.12 51.63 Good 0.00

2.80 1.12 119.34 Good 0.00

3.60 1.91 99.55 Good 0.00

1.20 0.68 100.51 Good 0.00

1.80 0.95 120.53 Good 0.00

1.20 0.49 107.81 Good 0.00

1.80 0.80 117.32 Good 0.00


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

Grade_Dec RumbleStrips EdgeRumbleStrips Hazard_Rating Barrier_Type

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

0.00 No Yes 3 None

-5.39 No No 4 Guardrail

-6.37 No No 4 None



0.00 No No 5 Guardrail


0.00 No No 2 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 2 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 3 None

0.00 No No 4 None

0.00 No No 2 None

0.00 No No 2 None

0.00 No No 2 None

0.00 No No 4 None

0.00 No No 2 None

0.00 No No 3 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

0.00 No No 4 None

-3.02 No No 4 None




0.00 No No 3 None


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

HorCurve_length HorCurve_Radius HorCurve_Elev Accesses Access_per_mi

3 10

0.26 5785 4 7

0.31 5860 6 6

4 3

3 8

0.37 4100 26 8

0.19 1400 8 20

33 37

8 10

0.32 5920 4 13

5 6

6 2

0.41 3260 0 0

0.36 3095 0 0

0.45 2885 1 3

1 2

0.41 2800 1 1

0.5 3900 1 2

9 2

0.73 5825 1 2

3 2

0.34 5845 4 10

2 2

0 0

0.51 5980 2 5

1 1

3 1

1 5

10 25

22 20

2 1

3 3

10 11

1 1

3 10

2 1

9 13

1.06 8210 1 1

7 6

11 6

9 3

4 2

2 10

0.61 3820 11 14

0.24 4217 9 5

3 5

0.22 1910 0 0

2 5

0.27 1775 0 0


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

HSCA OffRoad_mi LaneDep_mi Winter_Mi Animal_mi Fi_Mi

0.54 3.333333333 0 3.333333333 3.333333333 0

0.79 1.666666667 0 1.666666667 0 1.666666667

0.79 1 2 1 0 1

0.79 0.769230769 0.769230769 0 0 0

0.79 0 2.5 0 0 2.5

0.53 1.470588235 1.470588235 2.647058824 0.294117647 2.058823529

0.53 2.5 0 0 0 2.5

0.02 1.111111111 3.333333333 1.111111111 1.111111111 8.888888889

0.5 2.5 0 1.25 1.25 0

0.5 0 0 3.333333333 0 0

0.5 1.25 1.25 0 1.25 1.25

0.5 5.862068966 0.689655172 3.448275862 0.344827586 2.413793103

0.5 12 0 10 0 2

0.5 1.666666667 1.666666667 6.666666667 3.333333333 3.333333333

0.5 2.5 0 2.5 0 0

0.5 2.5 0 2.5 0 0

0.5 2.222222222 0 2.222222222 2.222222222 2.222222222

0.5 3.333333333 0 0 0 0

0.5 5.283018868 0.377358491 5.471698113 1.509433962 2.452830189

0.49 8 2 6 0 4

0.49 3.571428571 0.714285714 4.285714286 0.714285714 2.857142857

0.49 2.5 0 2.5 7.5 5

0.49 5 0 4.166666667 3.333333333 1.666666667

0.49 0 0 0 0 0

0.39 0 0 0 0 0

0.39 1 1 3 1 0

0.39 4.761904762 0.476190476 5.714285714 2.857142857 2.380952381

0.39 5 0 0 5 5

0.39 0 0 0 0 0

0.39 0 0.909090909 0.909090909 0 0.909090909

0.39 8.5 2.5 9.5 2.5 4.5

0.49 2.222222222 2.222222222 2.222222222 4.444444444 2.222222222

0.49 6.666666667 2.222222222 8.888888889 2.222222222 1.111111111

0.49 2 0 4 3.333333333 1.333333333

0.49 3.333333333 10 10 10 6.666666667

0.33 4.642857143 1.428571429 6.785714286 0.714285714 2.857142857

0.33 1.428571429 0 1.428571429 2.857142857 1.428571429

0.33 9.090909091 1.818181818 11.81818182 2.727272727 1.818181818

0.33 8.181818182 2.727272727 15.45454545 0.909090909 5.454545455

0.33 5.263157895 0.526315789 6.315789474 1.052631579 2.105263158

0.33 4.615384615 1.538461538 5.769230769 0.384615385 3.461538462

0.4 2.352941176 0 3.529411765 0.588235294 1.176470588

0.4 0 0 0 0 0

0.4 8.75 2.5 16.25 1.25 2.5

0.51 4.117647059 0 4.705882353 5.294117647 1.176470588

0.51 8.333333333 0 6.666666667 1.666666667 1.666666667

0.51 5.714285714 0 7.142857143 2.857142857 1.428571429

0.51 15 0 15 0 5

0.51 8.333333333 0 11.66666667 5 3.333333333


Route FromMP ToMP

20 353.1 353.4

20 353.4 354.0

20 354.0 355.0

20 355.0 356.3

20 356.3 356.7

20 356.7 360.1

20 360.1 360.5

20 360.5 361.4

20 361.4 362.2

20 362.2 362.5

20 362.5 363.3

20 363.3 366.2

20 366.2 366.7

20 366.7 367.3

20 367.3 367.7

20 367.7 368.1

20 368.1 369.0

20 369.0 369.6

20 369.6 374.9

20 374.9 375.4

20 375.4 376.8

20 376.8 377.2

20 377.2 378.4

20 378.4 378.6

20 378.6 379.0

20 379.0 380.0

20 380.0 382.1

20 382.1 382.3

20 382.3 382.7

20 382.7 383.8

20 383.8 385.8

20 385.8 386.7

20 386.7 387.6

20 387.6 389.1

20 389.1 389.4

20 389.4 392.2

20 392.2 392.9

20 392.9 394.0

20 394.0 395.1

20 395.1 397.0

20 397.0 399.6

20 399.6 401.3

20 401.3 401.5

20 401.5 402.3

20 402.3 404.0

20 404.0 404.6

20 404.6 405.3

20 405.3 405.7

20 405.7 406.3

ComCrash ComCrash_mi AccCrash_mi

0 0 0

0 0 0

1 1 0

0 0 0

0 0 0

3 0.882352941 1.176470588

0 0 0

1 1.111111111 6.666666667

0 0 0

0 0 3.333333333

2 2.5 0

2 0.689655172 0

2 4 0

4 6.666666667 1.666666667

0 0 0

0 0 0

3 3.333333333 0

0 0 0

11 2.075471698 0.377358491

2 4 0

3 2.142857143 0.714285714

0 0 0

4 3.333333333 0

0 0 0

0 0 0

0 0 1

1 0.476190476 0

0 0 0

0 0 2.5

1 0.909090909 0.909090909

8 4 1

2 2.222222222 0

3 3.333333333 0

0 0 0.666666667

1 3.333333333 0

2 0.714285714 0.357142857

0 0 0

4 3.636363636 0.909090909

1 0.909090909 2.727272727

1 0.526315789 1.052631579

4 1.538461538 0.384615385

0 0 0

1 5 0

4 5 3.75

4 2.352941176 0

0 0 0

2 2.857142857 0

0 0 0

1 1.666666667 0

Appendix B Crash Data

Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance 1

1 002070 352.743 Pickup Going Straight Descending S Angle In Intersection Point 11 Power Unit None

002070 352.743 SUV/Crossover Other Descending W Angle In Intersection On Roadway Point 1 Power Unit Failed to Yield

2 002070 352.743 Van - 1 to 8 seats Turning Right Ascending E Side Swipe Same Nonjunction Point 7 Power Unit None

002070 352.743 Tractor - 2 Trailers Going Straight Ascending E Side Swipe Same Nonjunction On Roadway Point 1 Power Unit None

3 002070 352.750 Car Passing Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Improper Overtaking

4 002070 353.010 Car Going Straight Ascending E Animal - Domestic In Intersection On Roadway Point 3 Power Unit None

5 002070 353.028 Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction On Roadway Point 12 Power Unit None

002070 353.028 Pickup/Van/Panel/SUV Turning Left Descending W Rear-End Nonjunction Point 6 Power Unit None

6 002070 353.100 SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Point 8 Power Unit None

7 002070 353.400 SUV/Crossover Going Straight Descending W Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway

8 002070 353.904 Pickup/Van/Panel/SUV Passing Ascending S Overturn Nonjunction Outside Right-Of-Way Top And Windows Power Unit Speed Too Fast For Conditions

9 002070 354.500 Car Passing Ascending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Inattention

002070 354.500 Pickup/Van/Panel/SUV Going Straight Ascending N Side Swipe Same Nonjunction Point 9 Power Unit None

002070 354.500 Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 8 Power Unit None

002070 354.500 Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 8 Power Unit None

10 002070 354.500 Van - 1 to 8 seats Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Drove Left of Center

002070 354.500 Bus - 16 or more seats Going Straight Ascending N Side Swipe Opposite Nonjunction Point 10 Power Unit Vision Obstruction

11 002070 354.986 Car Passing Ascending N Overturn Nonjunction On Roadway Top And Windows Power Unit Overcorrected

12 002070 356.094 Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction On Roadway Point 9 #1 Trailing Unit Other

13 002070 356.200 Car Turning Left Ascending N Side Swipe Same Nonjunction Right Shoulder Point 11 Power Unit Improper Turn

002070 356.200 Motor Home Going Straight Ascending N Side Swipe Same Nonjunction Point 3 #1 Trailing Unit None

14 002070 356.500 Car Negotiating Curve Ascending S Side Swipe Opposite Nonjunction On Roadway Point 8 Power Unit Drove Left of Center

002070 356.500 Pickup Negotiating Curve Ascending N Side Swipe Opposite Nonjunction Point 8 #1 Trailing Unit None

15 002070 356.756 SUV/Crossover Stopped in Traffic Descending S Side Swipe Same Nonjunction Point 5 Power Unit None

002070 356.756 Pickup Going Straight Descending S Side Swipe Same Nonjunction On Roadway Point 8 Power Unit Speed Too Fast For Conditions

16 002070 357.120 SUV/Crossover Slowing in Traffic Ascending N Rear-End Nonjunction Point 6 Power Unit None

002070 357.120 Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction On Roadway Point 1 Power Unit Following Too Close

17 002070 357.343 Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit Failed to Maintain Lane

002070 357.343 Tractor - 1 Trailer Going Straight Ascending N Side Swipe Opposite Nonjunction Point 7 Power Unit None

18 002070 357.400 Van - 1 to 8 seats Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

19 002070 357.700 Car Going Straight Ascending E Delineator Post Nonjunction Right Shoulder Point 11 Power Unit Failed to Maintain Lane

20 002070 357.900 Car Going Straight Ascending N Overturn Nonjunction Roadside or Sidewalk Top And Windows Power Unit Other

21 002070 357.980 Pickup Turning Left Descending E Angle Turning In Intersection On Roadway Point 8 Power Unit Failed to Obey Stop Sign

002070 357.980 Car Going Straight Descending SW Angle Turning In Intersection Point 11 Power Unit None

22 002070 358.649 Car Going Straight Ascending E Rear-End In Intersection On Roadway Point 12 Power Unit None

002070 358.649 Pickup Turning Left Ascending E Rear-End In Intersection Point 6 Power Unit None

23 002070 358.655 Pickup Going Straight Ascending S Side Swipe Opposite In Intersection On Roadway Point 11 Power Unit Speed Too Fast For Conditions

002070 358.655 Pickup Turning Left Ascending N Side Swipe Opposite In Intersection Point 8 Power Unit None

24 002070 359.100 Pickup Going Straight Ascending S Non-Contact Unit Nonjunction On Roadway No Impact Wheel Defect

002070 359.100 Pickup Going Straight Ascending N Other Object Not Fixed Nonjunction On Roadway Point 12 Power Unit None

25 002070 359.300 Pickup Going Straight Ascending W Overturn Nonjunction Left Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued

26 002070 359.455 SUV/Crossover Going Straight Ascending S Embankment Nonjunction Left Shoulder Top And Windows Power Unit None

27 002070 359.500 Pickup Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit Following Too Close

002070 359.500 Pickup Going Straight Ascending N Rear-End Nonjunction Point 12 # 1 Trailing Unit None

28 002070 359.600 Tractor - 1 Trailer Negotiating Curve Ascending E Jackknifed In Intersection Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions

29 002070 359.900 Pickup/Van/Panel/SUV Negotiating Curve Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

30 002070 359.900 Car Slowing in Traffic Ascending N Side Swipe Same Nonjunction Point 4 Power Unit None

002070 359.900 Pickup/Van/Panel/SUV Negotiating Curve Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Inattention

31 002070 359.962 SUV/Crossover Negotiating Curve Descending NE Head-On Nonjunction Left Shoulder Point 12 Power Unit Other

002070 359.962 SUV/Crossover Avoiding Vehicle, Pedestrian, Pedalcycle Descending SW Head-On Nonjunction Point 12 Power Unit Sick

32 002070 360.324 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit Asleep, Drowsy, Fatigued

33 002070 360.500 Pickup/Van/Panel/SUV Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions

34 002070 360.500 SUV/Crossover Slowing in Traffic Descending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Failed to Maintain Lane

002070 360.500 SUV/Crossover Going Straight Descending S Side Swipe Opposite Nonjunction Point 9 Power Unit None

35 002070 360.524 Pickup/Van/Panel/SUV Leaving Parking Lot/driveway/alley Ascending NE Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Failed to Yield

002070 360.524 Pickup/Van/Panel/SUV Leaving Parking Lot/driveway/alley Ascending E Side Swipe Opposite At Driveway/Alley/Parking Lot Point 12 Power Unit None

002070 360.524 Pickup/Van/Panel/SUV Going Straight Ascending N Building/Wall Driveway/Alley/Parking Lot Related Parking Lot Access Rd Point 7 Power Unit None

36 002070 360.569 Car Turning Left Descending E Angle Turning At Driveway/Alley/Parking Lot On Roadway Point 9 Power Unit Failed to Yield

002070 360.569 Truck With Trailer Going Straight Descending S Angle Turning At Driveway/Alley/Parking Lot Point 12 Power Unit None

37 002070 360.572 Pickup/Van/Panel/SUV Going Straight Ascending E Angle In Intersection Point 4 Power Unit Inattention

002070 360.572 Car Going Straight Ascending N Angle In Intersection On Roadway Point 12 Power Unit Distracted IN or ON Vehicle

38 002070 360.572 Car Going Straight Ascending N Head-On Turning Intersection Related Point 10 Power Unit None

002070 360.572 Pickup Turning Left Ascending S Head-On Turning Intersection Related On Roadway Point 12 Power Unit Inattention

39 002070 360.572 Car Going Straight Ascending N Angle In Intersection On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 360.572 Motorcycle Going Straight Ascending E Angle In Intersection Point 3 Power Unit Failed to Yield

40 002070 360.597 Car Going Straight Ascending W Angle In Intersection On Roadway Point 11 Power Unit Failed to Obey Stop Sign

002070 360.597 Tractor - 1 Trailer Going Straight Ascending N Angle In Intersection Point 3 Power Unit None

41 002070 360.719 Pickup/Van/Panel/SUV Turning Left Ascending E Angle Turning In Intersection On Roadway Point 2 Power Unit Inattention

002070 360.719 Pickup/Van/Panel/SUV Going Straight Ascending N Jackknifed In Intersection Point 12 Power Unit None

42 002070 360.923 Pickup/Van/Panel/SUV Turning Left Ascending W Angle In Intersection Point 8 Power Unit Failed to Obey Signal

002070 360.923 Motor Home Going Straight Ascending N Angle In Intersection On Roadway Point 11 Power Unit None


43 002070 361.095 Pickup Going Straight Descending S Animal - Domestic Nonjunction On Roadway Point 12 Power Unit None

44 002070 361.563 Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit None

45 002070 361.572 SUV/Crossover Going Straight Descending S Other Object Not Fixed Nonjunction Off Roadway-Location Unknown Point 1 Power Unit Asleep, Drowsy, Fatigued

46 002070 361.999 Van - 1 to 8 seats Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

47 002070 362.300 Pickup/Van/Panel/SUV Going Straight Descending S Rear-End Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 362.300 Pickup/Van/Panel/SUV Going Straight Descending N Side Swipe Opposite Nonjunction Point 1 Power Unit None

002070 362.300 Construction Equipment Going Straight Descending S Rear-End Nonjunction Point 7 Power Unit None

48 002070 362.900 Pickup/Van/Panel/SUV Going Straight Ascending W Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit Drove Left of Center

002070 362.900 Tractor - 1 Trailer Going Straight Ascending E Side Swipe Opposite Nonjunction Point 9 Power Unit None

49 002070 362.962 Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Distracted IN or ON Vehicle

50 002070 363.100 Tractor - 2 Trailers Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

51 002070 363.500 Pickup Going Straight Descending S Concrete Traffic Barrier Nonjunction On Roadway Point 1 Power Unit Tire Defect

52 002070 363.500 Pickup Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

53 002070 363.828 Car Going Straight Descending W Embankment Intersection Related Off Roadway-Location Unknown Point 12 Power Unit Distracted IN or ON Vehicle

54 002070 364.001 Pickup Negotiating Curve Descending S Other Object Not Fixed Nonjunction Right Shoulder Undercarriage Power Unit Asleep, Drowsy, Fatigued

55 002070 364.063 Car Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

56 002070 364.063 Car Negotiating Curve Descending S Guardrail Face In Intersection Right Shoulder Point 12 Power Unit Alcohol Impaired

57 002070 364.063 Pickup Going Straight Ascending N Guardrail Face In Intersection Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions

58 002070 364.063 SUV/Crossover Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

59 002070 364.189 Pickup/Van/Panel/SUV Going Straight Ascending S Bridge Rail Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

60 002070 364.200 Tractor - 1 Trailer Going Straight Ascending N Guardrail Face Nonjunction Right Shoulder Undercarriage Power Unit None

61 002070 364.200 Bobtail/Tractor - No Trailer Going Straight Descending S Other Fixed Object Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions

62 002070 365.000 Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

63 002070 365.009 Car Going Straight Ascending S Guardrail Face Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions

64 002070 365.037 Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 11 Power Unit Distracted IN or ON Vehicle

002070 365.037 Pickup/Van/Panel/SUV Going Straight Ascending N Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit None

65 002070 365.300 Van - 1 to 8 seats Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

66 002070 365.400 Car Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Overcorrected

67 002070 365.500 Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 9 #2 Trailing Unit Truck Coupling, Trailer Hitch, Safety Chains

68 002070 365.500 Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 #1 Trailing Unit None

69 002070 365.800 Car Passing Ascending W Head-On Nonjunction On Roadway Point 11 Power Unit Alcohol Impaired

002070 365.800 Pickup/Van/Panel/SUV Passing Ascending E Head-On Nonjunction Point 11 Power Unit None

70 002070 366.019 Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit None

71 002070 366.038 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit None

72 002070 366.400 Pickup/Van/Panel/SUV Negotiating Curve Ascending N Tree Nonjunction Outside Right-Of-Way Point 12 Power Unit Speed Too Fast For Conditions

73 002070 366.500 Pickup Negotiating Curve Ascending N Other Object Not Fixed Nonjunction On Roadway Point 8 Power Unit None

002070 366.500 Tractor - 1 Trailer Negotiating Curve Ascending N Cargo Loss/Shift Nonjunction On Roadway No Impact Other

74 002070 366.500 Car Negotiating Curve Ascending S Overturn Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

75 002070 366.500 SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

76 002070 366.500 Pickup Negotiating Curve Ascending E Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

77 002070 366.500 Tractor - 1 Trailer Going Straight Descending S Guardrail Face Nonjunction Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions

78 002070 366.800 Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction On Roadway Point 5 Power Unit None

79 002070 366.900 Tractor - 1 Trailer Negotiating Curve Descending S Jackknifed Nonjunction On Roadway Point 10 Power Unit Speed Too Fast For Conditions

002070 366.900 Tractor - 1 Trailer Negotiating Curve Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit None

80 002070 366.995 Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None

81 002070 367.063 Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Inattention

82 002070 367.091 Pickup Negotiating Curve Descending S Jackknifed Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions

83 002070 367.200 SUV/Crossover Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 2 Power Unit Speed Too Fast For Conditions

002070 367.200 Truck - 3+ Axle Going Straight Ascending N Side Swipe Opposite Nonjunction Point 12 Power Unit None

002070 367.200 Car Going Straight Ascending S Side Swipe Opposite Nonjunction Point 11 Power Unit None

002070 367.200 Car Going Straight Ascending N Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit None

84 002070 367.250 Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit None

85 002070 367.250 Car Going Straight Descending S Rear-End Nonjunction Point 6 Power Unit None

002070 367.250 Pickup Going Straight Descending S Rear-End Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions

86 002070 367.500 Pickup Negotiating Curve Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions

87 002070 367.716 Pickup Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit None

88 002070 368.300 Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

89 002070 368.400 Car Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

90 002070 368.500 Pickup Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 11 # 1 Trailing Unit Speed Too Fast For Conditions

91 002070 368.500 Tractor - 1 Trailer Avoiding Obstacle Descending S Other Object Not Fixed Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

92 002070 368.800 Tractor - 2 Trailers Negotiating Curve Ascending E Overturn Nonjunction Right Shoulder Point 3 Power Unit Brakes

93 002070 368.900 Pickup Going Straight Ascending N Separation of Units Nonjunction Right Shoulder Point 3 #1 Trailing Unit Speed Too Fast For Conditions

94 002070 369.057 Car Negotiating Curve Ascending S Embankment Nonjunction Left Shoulder Point 11 Power Unit Other

95 002070 369.057 Car Negotiating Curve Descending N Embankment Nonjunction Median Point 10 Power Unit Failed to Maintain Lane

96 002070 369.613 Car Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

97 002070 369.689 SUV/Crossover Going Straight Ascending N Cargo Loss/Shift Nonjunction Right Shoulder Point 5 Power Unit Speed Too Fast For Conditions

98 002070 369.882 Tractor - 1 Trailer Going Straight Ascending N Rear-End In Intersection On Roadway Point 1 Power Unit Following Too Close

002070 369.882 Pickup Turning Right Ascending N Rear-End Intersection Related Point 5 Power Unit None

99 002070 370.100 Car Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 370.100 Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction Point 6 Power Unit None

100 002070 370.162 Van - 1 to 8 seats Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions


002070 370.162 Tractor - 2 Trailers Going Straight Descending S Side Swipe Opposite Nonjunction Point 4 Power Unit None

101 002070 370.240 Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 8 Power Unit Animal(s) in Roadway

102 002070 370.250 Pickup Going Straight Ascending S Vehicle Equipment Failure (Blown Tire/Brake Failure)Nonjunction On Roadway No Impact Wheel Defect

002070 370.250 Car Going Straight Ascending N Vehicle Equipment Failure (Blown Tire/Brake Failure)Nonjunction On Roadway Point 9 Power Unit Wheel Defect

103 002070 370.500 Pickup/Van/Panel/SUV Passing Descending N Side Swipe Same Nonjunction On Roadway Point 8 Power Unit Speed Too Fast For Conditions

002070 370.500 Tractor - 1 Trailer Going Straight Descending N Side Swipe Same Nonjunction Point 8 Power Unit None

104 002070 370.500 SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued

105 002070 370.943 SUV/Crossover Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions

106 002070 371.057 SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

107 002070 371.300 Car Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

108 002070 371.500 Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

109 002070 371.500 Pickup Going Straight Descending W Tree Nonjunction Roadside or Sidewalk Point 12 Power Unit Failed to Maintain Lane

110 002070 371.500 SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit None

111 002070 371.800 SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions

112 002070 371.861 Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions

113 002070 371.943 Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

114 002070 371.966 Tractor - 1 Trailer Going Straight Descending S Overturn Nonjunction Right Shoulder No Impact Light Defect

115 002070 371.996 Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit None

116 002070 372.001 Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

117 002070 372.028 Van - 1 to 8 seats Passing Ascending N Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

118 002070 372.300 Pickup Going Straight Descending E Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

119 002070 372.750 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

120 002070 372.800 SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

121 002070 372.800 Pickup Going Straight Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit Asleep, Drowsy, Fatigued

122 002070 372.962 Tractor - 1 Trailer Going Straight Ascending N Animal - Domestic Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway

123 002070 372.971 Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions

002070 372.971 Tractor - 1 Trailer Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions

002070 372.971 Tractor - 2 Trailers Going Straight Ascending N Side Swipe Same Nonjunction Left Shoulder No Impact Speed Too Fast For Conditions

124 002070 372.976 Car Going Straight Descending S Overturn Nonjunction Right Shoulder Point 12 Power Unit Inattention

125 002070 372.986 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

126 002070 372.990 Truck - 3+ Axle Going Straight Descending N Overturn Nonjunction Left Shoulder Point 9 Power Unit Improper Turn

127 002070 373.038 SUV/Crossover Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

128 002070 373.095 Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions

129 002070 373.200 Car Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions


131 002070 373.500 SUV/Crossover Passing Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

132 002070 373.600 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None


134 002070 373.800 Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

135 002070 373.900 SUV/Crossover Going Straight Ascending N Tree Nonjunction Right Shoulder Undercarriage Power Unit Failed to Maintain Lane

136 002070 374.500 Car Going Straight Descending S Embankment Nonjunction Right Shoulder Point 12 Power Unit None

137 002070 374.606 Tractor - 1 Trailer Going Straight Ascending E Overturn Nonjunction On Roadway Point 3 Power Unit Failed to Maintain Lane

138 002070 374.800 SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

139 002070 374.905 Pickup Going Straight Descending N Other Object Not Fixed Nonjunction Left Shoulder Point 8 Power Unit Asleep, Drowsy, Fatigued

140 002070 375.100 Car Negotiating Curve Descending E Head-On Nonjunction On Roadway Point 12 Power Unit Vision Obstruction

002070 375.100 Truck - 2 Axle/6 Tires Negotiating Curve Descending W Head-On Nonjunction Point 12 Power Unit None

141 002070 375.200 Car Going Straight Ascending N Tree Nonjunction Right Shoulder Undercarriage Power Unit Speed Too Fast For Conditions

142 002070 375.250 Pickup Negotiating Curve Ascending S Overturn Nonjunction Off Roadway-Location Unknown Point 9 Power Unit Speed Too Fast For Conditions

143 002070 375.350 SUV/Crossover Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions

144 002070 375.400 Van/Bus - 9 to 15 seats Going Straight Ascending W Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions

145 002070 375.500 Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

146 002070 375.500 Car Going Straight Ascending N Other Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions

147 002070 375.800 Pickup Going Straight Ascending N Vehicle Equipment Failure (Blown Tire/Brake Failure)Nonjunction Right Shoulder Point 4 #1 Trailing Unit None

148 002070 376.030 Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

149 002070 376.038 Car Passing Descending N Tree Nonjunction Left Shoulder Point 1 Power Unit None

150 002070 376.200 Tractor - 1 Trailer Going Straight Descending S Same Direction Turning Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 376.200 Tractor - 1 Trailer Going Straight Descending S Same Direction Turning Nonjunction Point 12 Power Unit None

151 002070 376.500 SUV/Crossover Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

152 002070 376.750 Pickup Going Straight Ascending N Rear-End Nonjunction Right Shoulder Point 9 Power Unit None

002070 376.750 Tractor - 1 Trailer U-Turn Ascending N Rear-End Nonjunction Point 5 Power Unit Improper Turn

153 002070 376.750 Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Animal(s) in Roadway

154 002070 377.065 Car Negotiating Curve Ascending N Tree Intersection Related Roadside or Sidewalk Top And Windows Power Unit Asleep, Drowsy, Fatigued


156 002070 377.100 Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway


158 002070 377.200 Pickup Going Straight Descending E Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

159 002070 377.350 Car Going Straight Descending N Embankment Nonjunction Left Shoulder Point 11 Power Unit Inattention

160 002070 377.905 Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions

161 002070 378.019 Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

162 002070 378.038 Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 6 Power Unit None

163 002070 378.057 Pickup Going Straight Descending S Animal - Domestic Nonjunction On Roadway Point 1 Power Unit None


164 002070 378.075 Tractor - 2 Trailers Going Straight Ascending S Other Nonjunction No Impact Wheel Defect

002070 378.075 Car Going Straight Ascending N Other Nonjunction On Roadway Point 12 Power Unit None

165 002070 378.199 Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Top # 1 Trailing Unit None

002070 378.199 SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Top And Windows Power Unit None

166 002070 378.200 Pickup Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions


168 002070 378.362 Tractor - 2 Trailers Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 #1 Trailing Unit Animal(s) in Roadway

169 002070 379.005 Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 6 #1 Trailing Unit Speed Too Fast For Conditions

170 002070 379.038 Pickup Going Straight Ascending N Separation of Units Nonjunction Left Shoulder Point 12 #2 Trailing Unit None

171 002070 379.100 Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions

002070 379.100 Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction Point 7 #1 Trailing Unit None

172 002070 379.500 Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Off Roadway-Location Unknown Top And Windows Power Unit Speed Too Fast For Conditions

173 002070 379.500 Pickup/Van/Panel/SUV Going Straight Ascending S Head-On Nonjunction On Roadway Point 12 # 1 Trailing Unit None

002070 379.500 Truck With Trailer Going Straight Ascending N Head-On Nonjunction Point 12 Power Unit None

174 002070 379.500 Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

175 002070 380.000 Car Turning Right Descending S Side Swipe Same Nonjunction On Roadway Point 3 Power Unit Improper Lane Change

002070 380.000 Car Going Straight Descending S Side Swipe Same Nonjunction Point 11 Power Unit None


177 002070 380.043 Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

178 002070 380.066 Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions

179 002070 380.099 SUV/Crossover Going Straight Ascending N Parked Car Nonjunction Right Shoulder Point 12 Power Unit None

002070 380.099 SUV/Crossover Parked Vehicle Ascending N Parked Car Nonjunction Point 9 Power Unit None

180 002070 380.250 Pickup Passing Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

181 002070 380.800 Car Going Straight Ascending N Tree Nonjunction Right Shoulder Point 12 Power Unit Asleep, Drowsy, Fatigued

182 002070 380.900 SUV/Crossover Going Straight Ascending E Tree Nonjunction Roadside or Sidewalk Point 11 Power Unit None

183 002070 380.968 Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway

184 002070 380.991 Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 10 Power Unit None

185 002070 381.120 Car Going Straight Descending N Other Non-Collision Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions


187 002070 381.200 Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

188 002070 381.500 Tractor - 2 Trailers Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None

189 002070 381.600 Car Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

190 002070 381.700 Car Going Straight Descending S Embankment Nonjunction Roadside or Sidewalk Point 11 Power Unit Speed Too Fast For Conditions

191 002070 382.009 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued

192 002070 382.037 Pickup/Van/Panel/SUV Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None


194 002070 382.200 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued

195 002070 382.320 Pickup Going Straight Ascending N Rear-End Turning In Intersection On Roadway Point 12 Power Unit Following Too Close

002070 382.320 SUV/Crossover Turning Right Ascending N Rear-End Turning In Intersection Point 12 # 1 Trailing Unit None

196 002070 383.034 Car Negotiating Curve Ascending N Side Swipe Same Nonjunction Point 11 Power Unit None

002070 383.034 Tractor - 1 Trailer Negotiating Curve Ascending N Side Swipe Same Nonjunction On Roadway Point 2 Power Unit Improper Lane Change

197 002070 383.500 Car Going Straight Ascending N Angle Turning In Intersection On Roadway Point 12 Power Unit None

002070 383.500 Pickup Turning Left Ascending W Angle Turning In Intersection Point 12 Power Unit Failed to Yield




201 002070 384.047 Car Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 11 Power Unit None

202 002070 384.100 Pickup/Van/Panel/SUV Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions

203 002070 384.100 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Inattention

204 002070 384.120 Tractor - 2 Trailers Going Straight Ascending N Tree Nonjunction Right Shoulder Point 1 Power Unit Asleep, Drowsy, Fatigued

205 002070 384.500 Pickup/Van/Panel/SUV Passing Descending W Side Swipe Same Nonjunction On Roadway Point 12 Power Unit Improper Overtaking

002070 384.500 Truck - 3+ Axle Going Straight Descending W Side Swipe Same Nonjunction Point 5 Power Unit None

206 002070 384.500 Pickup Going Straight Descending N Embankment Nonjunction Left Shoulder Point 8 Power Unit Speed Too Fast For Conditions

207 002070 384.500 Pickup Going Straight Descending S Rear-End Nonjunction On Roadway Point 10 Power Unit None

002070 384.500 Tractor - 1 Trailer Going Straight Descending S Rear-End Nonjunction Point 5 Power Unit None

208 002070 384.500 Pickup Going Straight Descending S Cargo Loss/Shift Nonjunction On Roadway No Impact Wheel Defect

209 002070 384.500 Motorcycle Going Straight Descending W Vehicle Equipment Failure (Blown Tire/Brake Failure)Nonjunction On Roadway Point 10 Power Unit Tire Defect

210 002070 384.500 Tractor - 1 Trailer Going Straight Ascending N Tree Nonjunction Off Roadway-Location Unknown Point 12 Power Unit Failed to Maintain Lane

211 002070 384.700 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

212 002070 384.905 Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions


214 002070 384.962 Pickup/Van/Panel/SUV Going Straight Ascending S Head-On Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 384.962 Tractor - 1 Trailer Going Straight Ascending N Head-On Nonjunction Point 10 Power Unit None

215 002070 384.962 Pickup Passing Descending S Side Swipe Same Nonjunction On Roadway Point 3 Power Unit None

002070 384.962 Pickup Turning Left Descending S Side Swipe Same Nonjunction Point 10 Power Unit None

216 002070 385.009 Van - 1 to 8 seats Going Straight Descending N Head-On Nonjunction Point 7 Power Unit Speed Too Fast For Conditions

002070 385.009 Tractor - 1 Trailer Going Straight Descending S Head-On Nonjunction On Roadway Point 5 Power Unit None

217 002070 385.047 Pickup/Van/Panel/SUV Going Straight Ascending S Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

218 002070 385.076 Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 4 Power Unit Failed to Maintain Lane


220 002070 385.189 Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 7 Power Unit Failed to Maintain Lane


002070 385.189 SUV/Crossover Going Straight Descending S Side Swipe Opposite Nonjunction Point 8 Power Unit None



223 002070 385.250 Pickup Going Straight Ascending N Jackknifed Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions

224 002070 385.300 Pickup Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

225 002070 385.500 Tractor - 1 Trailer Negotiating Curve Ascending E Embankment Nonjunction Right Shoulder Point 1 Power Unit Vision Obstruction

226 002070 385.500 Car Turning Right Ascending W Angle Turning Intersection Related On Roadway Point 5 Power Unit Inattention

002070 385.500 Motorcycle Going Straight Ascending N Angle Turning Intersection Related On Roadway Point 1 Power Unit None


228 002070 385.600 SUV/Crossover Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 8 Power Unit Speed Too Fast For Conditions

229 002070 385.600 Car Going Straight Descending S Tree Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

230 002070 385.716 Pickup Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 9 Power Unit None

231 002070 385.991 Car Going Straight Descending N Head-On Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions

002070 385.991 Pickup Going Straight Descending S Head-On Nonjunction Point 10 Power Unit None

232 002070 386.014 Tractor - 1 Trailer Avoiding Vehicle, Pedestrian, Pedalcycle Ascending N Side Swipe Same Intersection Related On Roadway Point 11 Power Unit Other

002070 386.014 SUV/Crossover Turning Left Ascending N Side Swipe Same Intersection Related Point 5 Power Unit Failed to Yield

002070 386.014 Pickup Avoiding Vehicle, Pedestrian, Pedalcycle Ascending S Tree Nonjunction Right Shoulder No Impact Other



235 002070 386.100 Tractor - 2 Trailers Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Failed to Maintain Lane


237 002070 386.200 SUV/Crossover Negotiating Curve Ascending E Overturn Nonjunction Right Shoulder Top And Windows Power Unit Other


239 002070 386.750 Pickup Going Straight Ascending S Tree Nonjunction Left Shoulder Point 6 Power Unit Speed Too Fast For Conditions

240 002070 386.905 SUV/Crossover Going Straight Ascending S Traffic Sign Support Nonjunction Left Shoulder Point 2 Power Unit Asleep, Drowsy, Fatigued

241 002070 386.905 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

242 002070 387.057 SUV/Crossover Going Straight Descending N Head-On Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions

002070 387.057 Car Going Straight Descending S Head-On Nonjunction Point 1 Power Unit None

243 002070 387.095 Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions

244 002070 387.095 Pickup Turning Right Descending S Other Fixed Object Nonjunction Right Shoulder Point 11 Power Unit Failed to Maintain Lane

245 002070 387.100 Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions

002070 387.100 Tractor - 1 Trailer Going Straight Descending S Side Swipe Opposite Nonjunction Point 1 Power Unit None

246 002070 387.200 Tractor - 1 Trailer Going Straight Descending S Other Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

247 002070 387.250 Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions

248 002070 387.292 Pickup Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions



251 002070 387.600 Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction On Roadway Point 8 Power Unit None

252 002070 387.620 Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway


254 002070 387.962 Car Going Straight Descending S Rear-End Intersection Related On Roadway Point 12 Power Unit Following Too Close

002070 387.962 Pickup Going Straight Descending S Rear-End Intersection Related Point 6 Power Unit Other Vehicle Defect

255 002070 387.975 Pickup Going Straight Ascending N Tree Nonjunction Right Shoulder Point 1 Power Unit Alcohol Impaired


257 002070 388.094 Pickup/Van/Panel/SUV Going Straight Descending S Other In Intersection On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 388.094 Pickup/Van/Panel/SUV Going Straight Descending S Other In Intersection Point 9 Power Unit Failed to Yield

258 002070 388.100 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Undercarriage Power Unit Speed Too Fast For Conditions

259 002070 388.250 Car Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Alcohol Impaired



262 002070 389.057 Pickup Going Straight Descending S Immersion Nonjunction Outside Right-Of-Way Point 12 Power Unit Asleep, Drowsy, Fatigued

263 002070 389.100 Pickup/Van/Panel/SUV Going Straight Descending S Embankment Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

264 002070 389.157 Car Going Straight Descending S Side Swipe Opposite Nonjunction Point 10 Power Unit None

002070 389.157 Tractor - 1 Trailer Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 7 Power Unit Speed Too Fast For Conditions



267 002070 389.239 Pickup/Van/Panel/SUV Passing Descending S Side Swipe Same Nonjunction On Roadway No Impact Other

002070 389.239 Pickup/Van/Panel/SUV Going Straight Descending S Tree Nonjunction No Impact None

268 002070 389.245 Pickup Turning Left Descending E Head-On Turning In Intersection On Roadway Point 1 Power Unit None

002070 389.245 SUV/Crossover Going Straight Descending W Head-On Turning In Intersection Point 11 Power Unit Exceeded Posted Speed

269 002070 389.258 Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Inattention

270 002070 389.500 Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Right Shoulder Point 8 Power Unit Speed Too Fast For Conditions

271 002070 389.500 Pickup Going Straight Ascending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions

272 002070 389.600 SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Vision Obstruction

273 002070 389.600 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None

274 002070 389.661 Car Going Straight Ascending N Other Non-Collision Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions

275 002070 389.680 Car Going Straight Ascending N Rear-End Turning Intersection Related On Roadway Point 10 Power Unit Speed Too Fast For Conditions

002070 389.680 Car Slowing in Traffic Ascending N Rear-End Turning Intersection Related Point 5 Power Unit None

276 002070 390.005 SUV/Crossover Going Straight Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

277 002070 390.100 Construction Equipment Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

278 002070 390.400 SUV/Crossover Going Straight Descending S Overturn Nonjunction On Roadway Point 1 Power Unit Emotional â€“ Depressed, Angry, Disturbed


279 002070 390.400 Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions

002070 390.400 Pickup Going Straight Descending S Overturn Nonjunction Point 11 Power Unit None

280 002070 390.500 Car Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions

002070 390.500 Pickup Stopped in Traffic Ascending N Side Swipe Same Nonjunction Point 4 #1 Trailing Unit Other

281 002070 390.500 Pickup Going Straight Ascending N Overturn Nonjunction Off Roadway-Location Unknown Point 1 Power Unit Asleep, Drowsy, Fatigued

282 002070 390.700 Pickup Going Straight Descending N Jackknifed Nonjunction On Roadway Point 9 Power Unit Other

283 002070 390.900 Van - 1 to 8 seats Merging Descending N Side Swipe Opposite Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 390.900 Tractor - 2 Trailers Going Straight Descending S Side Swipe Opposite Nonjunction Point 11 Power Unit None

284 002070 390.998 Pickup Going Straight Ascending N Jackknifed Nonjunction On Roadway No Impact Speed Too Fast For Conditions

285 002070 391.019 Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions

286 002070 391.057 Pickup Going Straight Descending N Embankment Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions

287 002070 391.500 SUV/Crossover Going Straight Ascending N Side Swipe Opposite Nonjunction Point 1 Power Unit None

002070 391.500 Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions

288 002070 391.500 Tractor - 2 Trailers Going Straight Ascending N Jackknifed Nonjunction Left Shoulder Point 3 Power Unit Sick

002070 391.500 Tractor - 1 Trailer Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Previous Accident

289 002070 391.600 Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions


291 002070 391.905 Pickup/Van/Panel/SUV Going Straight Ascending S Embankment Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions

292 002070 391.962 Pickup Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

293 002070 391.996 Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 1 Power Unit None

294 002070 392.094 Pickup/Van/Panel/SUV Going Straight Descending S Embankment Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions


296 002070 392.800 Car Going Straight Ascending S Bridge/Pier/Abutment Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions


298 002070 392.900 Pickup/Van/Panel/SUV Going Straight Ascending N Rear-End Turning Intersection Related On Roadway Point 11 Power Unit Inattention

002070 392.900 Pickup/Van/Panel/SUV Turning Left Ascending N Rear-End Turning Intersection Related Point 7 Power Unit None

299 002070 392.900 Pickup/Van/Panel/SUV Going Straight Descending S Traffic Sign Support Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

300 002070 392.900 Pickup Going Straight Descending S Tree Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

301 002070 392.981 Car Other Descending S Side Swipe Same Nonjunction Left Shoulder Point 11 Power Unit Speed Too Fast For Conditions

002070 392.981 Pickup Other Descending S Side Swipe Same Nonjunction Point 3 Power Unit Speed Too Fast For Conditions

302 002070 392.996 Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

303 002070 393.003 Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions


305 002070 393.250 Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 10 Power Unit None

002070 393.250 Tractor - 1 Trailer Going Straight Ascending N Side Swipe Opposite Nonjunction Point 9 Power Unit None


002070 393.500 Pickup/Van/Panel/SUV Going Straight Descending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

307 002070 393.500 Pickup/Van/Panel/SUV Negotiating Curve Ascending N Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions

308 002070 393.500 Tractor - 1 Trailer Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit None



311 002070 393.824 Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions

312 002070 393.824 Pickup/Van/Panel/SUV Going Straight Ascending S Other Non-Collision Nonjunction Right Shoulder Point 5 Power Unit Asleep, Drowsy, Fatigued

002070 393.824 Car Going Straight Ascending N Other Non-Collision Nonjunction Right Shoulder No Impact None

313 002070 393.924 Tractor - 1 Trailer Going Straight Ascending N Other Fixed Object Nonjunction Right Shoulder Point 1 Power Unit Other

314 002070 393.924 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

315 002070 394.000 Car Going Straight Ascending W Head-On Nonjunction On Roadway Point 12 Power Unit Alcohol Impaired

002070 394.000 Tractor - 1 Trailer Going Straight Ascending E Head-On Nonjunction Point 12 Power Unit None

316 002070 394.001 Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

317 002070 394.074 Pickup Going Straight Ascending S Separation of Units Nonjunction On Roadway Point 8 Power Unit Other Vehicle Defect

002070 394.074 Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Other Vehicle Defect

318 002070 394.100 SUV/Crossover Going Straight Ascending N Other Post, Pole or Support Nonjunction Outside Right-Of-Way Point 3 Power Unit Vision Obstruction

319 002070 394.124 Pickup/Van/Panel/SUV Going Straight Descending N Tree Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions


321 002070 394.229 Pickup/Van/Panel/SUV Going Straight Ascending S Separation of Units Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions

322 002070 394.314 Pickup/Van/Panel/SUV Going Straight Ascending E Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

323 002070 394.324 Pickup/Van/Panel/SUV Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions

324 002070 394.324 Pickup/Van/Panel/SUV Turning Right Descending S Other In Intersection On Roadway No Impact Failed to Yield

002070 394.324 Pickup/Van/Panel/SUV Going Straight Descending W Embankment In Intersection Roadside or Sidewalk Point 10 Power Unit None

325 002070 394.324 Pickup Turning Right Descending N Angle Turning Intersection Related On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 394.324 Pickup Going Straight Descending W Angle Turning Nonjunction No Impact None

326 002070 394.324 Pickup Turning Right Ascending N Same Direction Turning Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 394.324 Car Going Straight Ascending N Same Direction Turning Nonjunction Point 3 Power Unit Speed Too Fast For Conditions

327 002070 394.324 Pickup Turning Right Ascending N Angle Turning Intersection Related On Roadway Point 8 Power Unit None

002070 394.324 Pickup Stopped in Traffic Ascending W Angle Turning Nonjunction Point 7 Power Unit None

328 002070 394.324 Pickup Turning Left Descending S Side Swipe Same In Intersection On Roadway Point 9 Power Unit Improper Lane Change

002070 394.324 Car Going Straight Descending S Side Swipe Same In Intersection Point 1 Power Unit None

329 002070 394.366 Pickup Going Straight Ascending S Traffic Sign Support Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions

330 002070 394.500 Snowmobile Going Straight Ascending W Angle In Intersection Point 10 Power Unit Failed to Obey Stop Sign

002070 394.500 Car Going Straight Ascending N Angle In Intersection On Roadway Point 1 Power Unit None

331 002070 394.600 Pickup/Van/Panel/SUV Going Straight Ascending S Tree Nonjunction On Roadway Point 6 Power Unit Speed Too Fast For Conditions

002070 394.600 Pickup/Van/Panel/SUV Going Straight Ascending N Tree Nonjunction Point 8 Power Unit None

332 002070 394.700 Tractor - 1 Trailer Going Straight Descending S Other Non-Collision Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions


333 002070 394.824 Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions

334 002070 394.943 SUV/Crossover Going Straight Ascending N Overturn Nonjunction Left Shoulder Undercarriage Power Unit Asleep, Drowsy, Fatigued

335 002070 394.990 Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions

336 002070 395.100 Pickup Going Straight Descending S Embankment Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

337 002070 395.200 Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Distracted IN or ON Vehicle

338 002070 395.500 Pickup/Van/Panel/SUV Going Straight Descending N Jackknifed Nonjunction Left Shoulder Point 5 Power Unit Speed Too Fast For Conditions

339 002070 395.500 Pickup Going Straight Descending S Side Swipe Same Nonjunction On Roadway Point 4 Power Unit Inattention

002070 395.500 Pickup Turning Left Descending S Side Swipe Same Nonjunction Point 11 Power Unit None

340 002070 395.500 Motor Home Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway

341 002070 395.500 Pickup Going Straight Ascending N Animal - Domestic Nonjunction On Roadway Point 9 Power Unit Animal(s) in Roadway

342 002070 395.600 Tractor - 1 Trailer Going Straight Descending S Rear-End Turning Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions

002070 395.600 Motor Home Turning Left Descending S Other Nonjunction On Roadway Point 5 Power Unit Failed to Yield

343 002070 395.943 SUV/Crossover Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

344 002070 396.001 Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Undercarriage Power Unit Speed Too Fast For Conditions

345 002070 396.057 SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions


347 002070 396.250 Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Off Roadway-Location Unknown Point 2 Power Unit Speed Too Fast For Conditions

348 002070 396.750 Motorcycle Going Straight Ascending N Overturn Nonjunction Off Roadway-Location Unknown Top And Windows Power Unit Speed Too Fast For Conditions

349 002070 396.924 Motorcycle Going Straight Ascending N Overturn Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions

350 002070 396.991 SUV/Crossover Turning Right Ascending N Rear-End Nonjunction Point 6 #1 Trailing Unit None

002070 396.991 Car Going Straight Ascending N Rear-End Nonjunction On Roadway Point 6 Power Unit Speed Too Fast For Conditions

351 002070 396.994 SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Failed to Maintain Lane

352 002070 397.037 Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

353 002070 397.038 Pickup Going Straight Descending N Separation of Units Nonjunction Left Shoulder Point 4 #1 Trailing Unit Speed Too Fast For Conditions

354 002070 397.096 Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

355 002070 397.200 Truck With Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Top # 1 Trailing Unit Failed to Maintain Lane

356 002070 397.500 SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions

357 002070 397.962 SUV/Crossover Going Straight Ascending N Guardrail Face Nonjunction On Roadway Point 1 Power Unit None

358 002070 397.985 Pickup Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Following Too Close

002070 397.985 Pickup Going Straight Ascending N Side Swipe Same Nonjunction Point 9 Power Unit None

359 002070 398.009 Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions

360 002070 398.009 Car Going Straight Descending N Other Post, Pole or Support Nonjunction Left Shoulder Point 11 Power Unit Asleep, Drowsy, Fatigued

361 002070 398.189 Tractor - 1 Trailer Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 8 Power Unit None

002070 398.189 Tractor - 1 Trailer Going Straight Descending S Side Swipe Opposite Nonjunction Point 8 Power Unit None

362 002070 398.410 Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway

363 002070 398.500 Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 8 Power Unit Vision Obstruction

364 002070 398.500 SUV/Crossover Going Straight Ascending S Head-On Nonjunction On Roadway Point 11 Power Unit Drove Left of Center

002070 398.500 Van - 1 to 8 seats Going Straight Ascending N Head-On Nonjunction Point 11 Power Unit None

002070 398.500 Car Going Straight Ascending N Angle Nonjunction On Roadway Point 6 Power Unit None

002070 398.500 Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit None

365 002070 398.800 Car Passing Ascending N Side Swipe Same Nonjunction Point 1 Power Unit Improper Overtaking

002070 398.800 Pickup U-Turn Ascending N Side Swipe Same Nonjunction On Roadway Point 11 Power Unit Failed to Yield

366 002070 398.900 Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

367 002070 398.985 SUV/Crossover Going Straight Descending N Overturn Nonjunction Off Roadway-Location Unknown Point 11 Power Unit None

368 002070 399.080 Van - 1 to 8 seats Going Straight Descending S Jackknifed Nonjunction On Roadway Undercarriage #1 Trailing Unit None

369 002070 399.100 Pickup/Van/Panel/SUV Going Straight Descending S Rear-End Nonjunction Right Shoulder Point 1 Power Unit Inattention

002070 399.100 Pickup/Van/Panel/SUV Other Descending S Rear-End Nonjunction On Roadway Point 7 Power Unit None

002070 399.100 Tractor - 1 Trailer Other Descending S Rear-End Nonjunction Point 6 Power Unit None

370 002070 399.100 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

371 002070 399.189 Car Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 12 Power Unit None


373 002070 399.700 Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

374 002070 400.003 Truck With Trailer Going Straight Ascending S Jackknifed Nonjunction Off Roadway-Location Unknown Point 11 Power Unit Speed Too Fast For Conditions

375 002070 400.675 SUV/Crossover Going Straight Ascending N Jackknifed Nonjunction Left Shoulder Point 7 Power Unit Inattention

376 002070 400.750 SUV/Crossover Going Straight Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions

377 002070 400.962 Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 9 Power Unit None

378 002070 401.008 SUV/Crossover Negotiating Curve Ascending N Overturn At Driveway/Alley/Parking Lot Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

379 002070 401.189 Pickup/Van/Panel/SUV Negotiating Curve Ascending S Concrete Traffic Barrier Nonjunction Parking Lot Access Rd Point 1 Power Unit Sick

380 002070 401.500 Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Roadside or Sidewalk Point 1 Power Unit Vision Obstruction

381 002070 401.800 Car Going Straight Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

382 002070 401.900 Tractor - 1 Trailer Going Straight Ascending S Jackknifed Nonjunction On Roadway Point 7 Power Unit Speed Too Fast For Conditions

383 002070 402.100 Car Negotiating Curve Descending E Other Object Not Fixed Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions

384 002070 402.100 Pickup Negotiating Curve Descending E Head-On Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

002070 402.100 SUV/Crossover Going Straight Descending W Head-On Nonjunction Point 12 Power Unit None

385 002070 402.186 SUV/Crossover Negotiating Curve Ascending N Utility/Light Support Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions

386 002070 402.200 Pickup Turning Right Ascending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions

387 002070 402.261 Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway

388 002070 402.270 Tractor - 1 Trailer Slowing in Traffic Ascending S Embankment In Intersection Roadside or Sidewalk Point 12 Power Unit Speed Too Fast For Conditions

389 002070 402.270 Tractor - 1 Trailer Going Straight Descending S Angle In Intersection On Roadway Point 11 Power Unit None

002070 402.270 Van - 1 to 8 seats Going Straight Descending E Angle In Intersection On Roadway Point 3 Power Unit Speed Too Fast For Conditions

390 002070 402.270 Tractor - 1 Trailer Turning Left Ascending N Rear-End Turning In Intersection Point 8 Power Unit None

002070 402.270 Pickup Going Straight Ascending N Rear-End Turning In Intersection On Roadway Point 11 Power Unit Following Too Close

391 002070 402.270 Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions


392 002070 402.270 Pickup Passing Ascending E Same Direction Turning Intersection Related Point 2 Power Unit Improper Overtaking

002070 402.270 Other Turning Left Ascending E Same Direction Turning Intersection Related On Roadway Point 9 Power Unit None

393 002070 402.270 Pickup Going Straight Descending S Angle Turning Intersection Related Point 1 Power Unit None

002070 402.270 SUV/Crossover Turning Right Descending E Angle Turning Intersection Related On Roadway Point 8 Power Unit Failed to Obey Stop Sign


395 002070 402.507 Motorcycle Going Straight Descending S Overturn Nonjunction On Roadway Point 10 Power Unit Speed Too Fast For Conditions

396 002070 402.611 Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions

397 002070 402.770 Car Going Straight Ascending N Parked Car Nonjunction Right Shoulder Point 1 Power Unit Vision Obstruction

002070 402.770 Pickup Parked Vehicle Ascending N Parked Car Nonjunction Point 8 #1 Trailing Unit None

398 002070 402.770 Car Negotiating Curve Descending S Guardrail Face Nonjunction Right Shoulder Point 1 Power Unit Animal(s) in Roadway




402 002070 403.057 Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 9 Power Unit None

403 002070 403.076 Car Going Straight Descending S Fence Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions


405 002070 403.200 Tractor - 2 Trailers Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

406 002070 403.270 Car Going Straight Ascending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway


408 002070 403.500 Tractor - 1 Trailer Turning Right Ascending N Fence Nonjunction Private Property Point 4 Power Unit None

409 002070 403.500 Tractor - 1 Trailer Turning Right Ascending N Fence Nonjunction On Roadway No Impact None


411 002070 403.800 SUV/Crossover Going Straight Descending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

412 002070 404.056 Car Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 8 Power Unit Speed Too Fast For Conditions

413 002070 404.100 Car Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions

414 002070 404.130 Car Avoiding Obstacle Ascending S Overturn Nonjunction Left Shoulder Point 10 Power Unit Overcorrected

415 002070 404.189 Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Failed to Maintain Lane

416 002070 404.190 SUV/Crossover Negotiating Curve Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway

417 002070 404.250 Car Negotiating Curve Ascending N Ditch Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions

418 002070 404.900 Car Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit None

419 002070 404.990 Tractor - 1 Trailer Going Straight Descending S Vehicle Equipment Failure (Blown Tire/Brake Failure)Nonjunction On Roadway Point 12 Power Unit Tire Defect


421 002070 405.095 SUV/Crossover Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions

422 002070 405.100 Tractor - 1 Trailer Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions

423 002070 405.102 Van - 1 to 8 seats Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None

424 002070 405.200 Pickup/Van/Panel/SUV Going Straight Ascending E Other Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions

425 002070 405.218 Pickup Negotiating Curve Descending N Guardrail End Nonjunction Left Shoulder Top And Windows Power Unit None


427 002070 405.300 Car Going Straight Descending E Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

428 002070 405.400 Car Going Straight Ascending N Embankment At Driveway/Alley/Parking Lot Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions

429 002070 405.500 SUV/Crossover Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 11 Power Unit Speed Too Fast For Conditions

430 002070 405.500 Pickup Negotiating Curve Descending N Other Fixed Object Nonjunction Off Roadway-Location Unknown Point 12 Power Unit Speed Too Fast For Conditions

431 002070 405.500 SUV/Crossover Negotiating Curve Descending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions

432 002070 405.500 Pickup Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions


434 002070 405.900 Van - 1 to 8 seats Going Straight Ascending S Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions


436 002070 406.019 SUV/Crossover Going Straight Descending S Other Object Not Fixed Nonjunction On Roadway Undercarriage Power Unit None

002070 406.019 Truck - 3+ Axle Going Straight Descending N Separation of Units Nonjunction On Roadway No Impact Other Vehicle Defect


438 002070 406.100 SUV/Crossover Going Straight Descending W Animal - Wild Nonjunction On Roadway Point 12 Power Unit Vision Obstruction


440 002070 406.205 Pickup Negotiating Curve Ascending N Overturn Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions

441 002070 406.300 Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions

Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldUnitNbr Severity Work Zone Related Divided State Highway Latitude Longitude

None None 50 None Clear Dry Day 0 2 Wednesday 09 11C291624 4/13/2011 1 C Injury Accident -U N U.S. Highway 43.99888200 -111.57060300

None None 50 0 0 11C291624 4/13/2011 2 C Injury Accident -U N U.S. Highway 43.99888200 -111.57060300

None None 50 None Clear Dry Day 0 0 Monday 10 12C314935 3/5/2012 1 Property Dmg Report N N U.S. Highway 43.99888200 -111.57060300

None None 50 0 0 12C314935 3/5/2012 2 Property Dmg Report N N U.S. Highway 43.99888200 -111.57060300

None None 00 High/Low Shoulder Cloudy Ice Day 0 1 Saturday 08 14C362760 1/11/2014 1 A Injury Accident N N U.S. Highway 43.99947100 -111.56875700

None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 23 14C375942 7/23/2014 1 Property Dmg Report -U N U.S. Highway 44.00063600 -111.56499400

None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 22 10C273860 8/6/2010 1 Property Dmg Report N U.S. Highway 44.00101182 -111.56411279

None None 50 0 0 10C273860 8/6/2010 2 Property Dmg Report N U.S. Highway 44.00101182 -111.56411279

None None 00 None Cloudy Snow Day 0 0 Monday 16 13C360450 12/23/2013 1 Property Dmg Report N N U.S. Highway 44.00138300 -111.56324300

None None 51 None Clear Dry Dark, No Street Lights 0 0 Sunday 18 13C356718 11/10/2013 1 Property Dmg Report N N U.S. Highway 44.00358200 -111.55800200

None None 00 None Clear Ice Day 0 1 Monday 09 10C285402 12/20/2010 1 B Injury Accident N U.S. Highway 44.00716871 -111.54818678

Improper Overtaking None 50 None Clear Dry Dawn or Dusk 0 0 Sunday 20 10C276763 9/12/2010 1 Property Dmg Report N U.S. Highway 44.00889564 -111.53843971




Vision Obstruction None 50 None Snow Snow Dark, No Street Lights 0 0 Saturday 20 11C285409 1/8/2011 1 Property Dmg Report N U.S. Highway 44.00910500 -111.53747700


None None 50 None Cloudy Dry Dark, No Street Lights 0 1 Tuesday 06 14C379403 9/16/2014 1 C Injury Accident N N U.S. Highway 44.01234400 -111.52853800

None None 50 None Clear Dry Day 0 0 Monday -U 10C266535 5/31/2010 1 Property Dmg Report N U.S. Highway 44.02057405 -111.51082167

None None 50 None Clear Dry Day 0 0 Friday 19 12C324692 8/17/2012 1 Property Dmg Report N N U.S. Highway 44.02182700 -111.50838900


None None 50 None Clear Dry Day 0 1 Thursday 12 14C374823 7/10/2014 1 B Injury Accident N N U.S. Highway 44.02444200 -111.50359000

None None 50 0 0 14C374823 7/10/2014 2 B Injury Accident N N U.S. Highway 44.02444200 -111.50359000

None None 50 None Blowing Snow Ice Day 0 0 Tuesday 13 13C358537 12/3/2013 1 Property Dmg Report N N U.S. Highway 44.02718773 -111.50067798


None None 50 None Clear Dry Day 0 2 Friday 14 13C352132 8/30/2013 1 C Injury Accident N N U.S. Highway 44.03175600 -111.49716400

None None 50 0 0 13C352132 8/30/2013 2 C Injury Accident N N U.S. Highway 44.03175600 -111.49716400



None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 00 13C344364 4/27/2013 1 Property Dmg Report N N U.S. Highway 44.03552000 -111.49416100

None None 00 None Snow Snow Day 0 1 Saturday 08 13C358372 11/16/2013 1 A Injury Accident N N U.S. Highway 44.03903100 -111.49064400

None None 50 None Sleet/Hail Slush Dark, No Street Lights 0 1 Saturday 22 14C369628 4/26/2014 1 B Injury Accident N N U.S. Highway 44.04122800 -111.48802900

Improper Turn None 50 None Clear Dry Day 0 4 Sunday 15 13C353766 9/8/2013 1 A Injury Accident N N U.S. Highway 44.04209320 -111.48692285

None None 50 0 0 13C353766 9/8/2013 2 A Injury Accident N N U.S. Highway 44.04209320 -111.48692285

None None 50 None Clear Dry Dark, No Street Lights 0 3 Saturday 23 14C375971 7/26/2014 1 C Injury Accident -U N U.S. Highway 44.04866400 -111.47905900

None None 50 0 0 14C375971 7/26/2014 2 C Injury Accident -U N U.S. Highway 44.04866400 -111.47905900

None None 50 None Snow Ice Day 0 0 Thursday 14 14C362064 1/9/2014 1 Property Dmg Report N N U.S. Highway 44.05000800 -111.47745000


None None 50 None Clear Dry Day 0 0 Sunday -U 13C345769 5/26/2013 1 Property Dmg Report N N U.S. Highway 44.05434200 -111.47222000



None None 00 High/Low Shoulder Cloudy Ice Day 0 3 Thursday 09 13C360483 12/5/2013 1 B Injury Accident N N U.S. Highway 44.05869100 -111.46697900

None None 50 None Clear Dry Day 0 0 Friday 17 14C377409 8/15/2014 1 Property Dmg Report -U N U.S. Highway 44.05869100 -111.46697900

None None 50 0 0 14C377409 8/15/2014 2 Property Dmg Report -U N U.S. Highway 44.05869100 -111.46697900

None None 50 None Snow Snow Dark, No Street Lights 0 0 Sunday 19 11C289359 2/20/2011 1 Property Dmg Report N U.S. Highway 44.05978300 -111.46566300

None None 00 None Snow Snow Day 0 0 Saturday 09 10C262156 4/3/2010 1 Property Dmg Report N U.S. Highway 44.06252781 -111.46232287

None None 50 None Snow Snow Day 0 0 Saturday 09 10C262193 4/3/2010 1 Property Dmg Report N U.S. Highway 44.06252781 -111.46232287


None None 50 None Cloudy Wet Day 0 2 Friday 10 14C386697 11/21/2014 1 A Injury Accident N N U.S. Highway 44.06710631 -111.45687494


None None 00 None Clear Dry Day 0 1 Tuesday 16 12C319489 5/29/2012 1 C Injury Accident N N U.S. Highway 44.06929590 -111.45595940

None None 00 None Snow Ice Day 0 0 Thursday 06 10C266215 5/6/2010 1 Property Dmg Report N U.S. Highway 44.06960525 -111.45594473

None None 50 None Clear Dry Day 0 2 Saturday 15 12C327435 9/22/2012 1 B Injury Accident N N U.S. Highway 44.06984252 -111.45580530

None None 50 0 0 12C327435 9/22/2012 2 B Injury Accident N N U.S. Highway 44.06984252 -111.45580530

Inattention None 50 None Clear Dry Day 0 1 Friday 18 10C273093 8/27/2010 1 B Injury Accident N U.S. Highway 44.07104950 -111.45594556

None None 50 0 0 10C273093 8/27/2010 2 B Injury Accident N U.S. Highway 44.07104950 -111.45594556


None None 51 None Clear Dry Day 0 3 Tuesday 12 11C307378 10/25/2011 1 A Injury Accident N N U.S. Highway 44.07222300 -111.45593500


Failed to Yield None 50 None Clear Dry Day 0 1 Thursday 18 10C272278 8/19/2010 1 C Injury Accident N U.S. Highway 44.07104950 -111.45594556

None None 50 0 0 10C272278 8/19/2010 2 C Injury Accident N U.S. Highway 44.07104950 -111.45594556

None None 51 None Cloudy Dry Day 0 0 Thursday -U 11C297156 7/14/2011 1 Property Dmg Report N N U.S. Highway 44.07222300 -111.45593500


None None 50 None Clear Dry Day 1 2 Friday 12 13C349124 6/21/2013 1 Fatal Accident N N U.S. Highway 44.07136495 -111.45594075

None None 50 0 0 13C349124 6/21/2013 2 Fatal Accident N N U.S. Highway 44.07136495 -111.45594075

None None 50 None Clear Dry Dark, Street Lights On 0 2 Sunday 22 10C269357 7/4/2010 1 A Injury Accident N U.S. Highway 44.07104950 -111.45594556

None None 50 0 0 10C269357 7/4/2010 2 A Injury Accident N U.S. Highway 44.07104950 -111.45594556

Failed to Yield None 50 None Clear Dry Day 0 1 Friday -U 10C267940 6/11/2010 1 B Injury Accident N U.S. Highway 44.07394630 -111.45592815


None None 50 None Clear Dry Day 0 1 Saturday 13 10C273897 9/4/2010 1 B Injury Accident N U.S. Highway 44.07645612 -111.45591259



None None 50 None Clear Dry Dark, No Street Lights 0 0 Thursday 21 14C367800 4/3/2014 1 Property Dmg Report -U N U.S. Highway 44.07897800 -111.45596000

None None 00 None Clear Ice Dark, No Street Lights 0 0 Saturday 00 11C284547 1/1/2011 1 Property Dmg Report -U N U.S. Highway 44.08624500 -111.45595900

Failed to Maintain Lane None 00 None Cloudy Dry Day 0 0 Friday 16 13C349090 7/5/2013 1 Property Dmg Report N N U.S. Highway 44.08624500 -111.45595900

None None 50 None Clear Dry Day 0 0 Wednesday 07 12C321400 6/27/2012 1 Property Dmg Report N N U.S. Highway 44.09203200 -111.45595200

None None 50 None Cloudy Ice Day 0 0 Monday 09 10C283469 12/20/2010 1 Property Dmg Report N U.S. Highway 44.09633200 -111.45565400



None None 50 None Cloudy Dry Day 1 1 Monday 11 10C278849 10/4/2010 1 Fatal Accident N U.S. Highway 44.10395249 -111.45218655

None None 50 0 0 10C278849 10/4/2010 2 Fatal Accident N U.S. Highway 44.10395249 -111.45218655

Overcorrected None 00 None Clear Dry Dark, No Street Lights 0 0 Saturday 21 10C271158 8/7/2010 1 Property Dmg Report N U.S. Highway 44.10531244 -111.45149266

None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Wednesday 18 14C387126 12/17/2014 1 Property Dmg Report N N U.S. Highway 44.10739000 -111.45046400

None None 00 None Clear Dry Dark, No Street Lights 0 0 Friday 01 11C294881 5/27/2011 1 Property Dmg Report N N U.S. Highway 44.11289200 -111.44773000

None None 00 None Fog Ice Day 0 0 Sunday 10 13C360492 12/22/2013 1 Property Dmg Report N N U.S. Highway 44.11289200 -111.44773000

Failed to Maintain Lane None 00 None Clear Dry Day 0 0 Thursday 11 14C376721 8/14/2014 1 Property Dmg Report N N U.S. Highway 44.11746366 -111.44536939

None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday 21 12C324126 7/30/2012 1 C Injury Accident N N U.S. Highway 44.11946600 -111.44364700

None None 00 None Sleet/Hail Wet Day 0 1 Saturday 09 10C266178 5/22/2010 1 C Injury Accident N U.S. Highway 44.11991430 -111.44325814

Overcorrected None 00 None Clear Dry Day 0 0 Friday 20 10C267960 6/18/2010 1 Property Dmg Report N U.S. Highway 44.11991430 -111.44325814

None None 00 None Clear Ice Day 0 2 Saturday 11 11C307366 11/19/2011 1 C Injury Accident N N U.S. Highway 44.12071100 -111.44262300

None None 00 None Fog Ice Day 0 1 Wednesday 11 12C312378 1/25/2012 1 C Injury Accident N N U.S. Highway 44.12071100 -111.44262300

None None 00 None Snow Snow Dark, No Street Lights 0 0 Friday 23 10C262150 4/2/2010 1 Property Dmg Report N U.S. Highway 44.12115291 -111.44222019

None None 00 None Clear Dry Day 0 0 Tuesday 14 12C317496 4/24/2012 1 Property Dmg Report N N U.S. Highway 44.12195000 -111.44161600

None None 00 None Snow Snow Day 0 0 Sunday 08 14C367920 3/30/2014 1 Property Dmg Report N N U.S. Highway 44.12195000 -111.44161600

None None 00 None Cloudy Ice Day 0 1 Wednesday 15 10C280345 11/24/2010 1 C Injury Accident N U.S. Highway 44.13155303 -111.43523902

None None 00 None Clear Ice Day 0 0 Wednesday 10 10C285549 12/29/2010 1 Property Dmg Report N U.S. Highway 44.13293128 -111.43463164

Inattention Overcorrected 50 None Cloudy Dry Day 0 0 Thursday 07 10C273928 8/12/2010 1 Property Dmg Report N U.S. Highway 44.13293128 -111.43463164


None None 00 None Snow Snow Day 0 1 Sunday 11 14C367948 3/30/2014 1 B Injury Accident N N U.S. Highway 44.13654600 -111.43325000

None None 00 None Clear Dry Dark, No Street Lights 0 0 Wednesday 10 10C273872 8/18/2010 1 Property Dmg Report N U.S. Highway 44.13708434 -111.43290197



Improper Overtaking None 50 None Clear Dry Day 0 5 Saturday 13 10C270002 7/3/2010 1 A Injury Accident N U.S. Highway 44.14219980 -111.42915662


None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 20 11C307346 10/23/2011 1 Property Dmg Report -U N U.S. Highway 44.14558100 -111.42704000

None None 00 None Cloudy Ice Day 0 0 Sunday -U 12C314923 1/8/2012 1 Property Dmg Report N N U.S. Highway 44.14558100 -111.42704000

None None 00 High/Low Shoulder Cloudy Slush Day 0 0 Sunday 16 10C285502 12/26/2010 1 Property Dmg Report N U.S. Highway 44.15015024 -111.42433257

None None 50 None Clear Dry Day 0 0 Sunday 13 11C287013 1/30/2011 1 Property Dmg Report N U.S. Highway 44.15235900 -111.42387700


None None 00 None Sleet/Hail Slush Day 0 0 Sunday 12 11C291643 4/17/2011 1 Property Dmg Report -U N U.S. Highway 44.15235900 -111.42387700

None None 00 None Snow Ice Day 0 0 Thursday 09 11C311185 12/29/2011 1 Property Dmg Report -U N U.S. Highway 44.15235900 -111.42387700

None None 99 None Cloudy Slush Day 0 1 Sunday 10 13C342840 3/17/2013 1 B Injury Accident N N U.S. Highway 44.15235900 -111.42387700

None None 50 None Clear Ice Dark, No Street Lights 0 0 Saturday 21 14C365362 2/15/2014 1 Property Dmg Report N N U.S. Highway 44.15235900 -111.42387700


Failed to Maintain Lane None 50 None Clear Ice Dark, No Street Lights 0 0 Tuesday 19 14C366063 3/4/2014 1 Property Dmg Report N N U.S. Highway 44.15797600 -111.42549700


None None 00 None Snow Other Day 0 1 Wednesday 09 11C308499 11/30/2011 1 C Injury Accident N N U.S. Highway 44.15941500 -111.42541600

None None 50 None Clear Dry Day 0 0 Wednesday 08 10C273891 8/18/2010 1 Property Dmg Report N U.S. Highway 44.16009461 -111.42533939

None None 50 None Snow Snow Dark, No Street Lights 0 0 Tuesday 23 14C367632 4/1/2014 1 Property Dmg Report N N U.S. Highway 44.16084200 -111.42514500

None None 50 None Cloudy Ice Dark, No Street Lights 0 2 Friday 18 11C286345 1/14/2011 1 A Injury Accident N U.S. Highway 44.16220700 -111.42451000





None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 11 14C374238 6/29/2014 1 Property Dmg Report Y N U.S. Highway 44.16220700 -111.42451000

Following Too Close None 50 0 0 14C374238 6/29/2014 2 Property Dmg Report Y N U.S. Highway 44.16220700 -111.42451000

None None 00 None Clear Ice Day 0 0 Monday 17 14C362751 1/20/2014 1 Property Dmg Report N N U.S. Highway 44.16641400 -111.42347600

None None 00 None Snow Slush Day 0 0 Sunday 12 13C356790 11/3/2013 1 Property Dmg Report -U N U.S. Highway 44.16917600 -111.42454400

None None 50 None Clear Dry Day 0 0 Thursday 19 12C319564 5/31/2012 1 Property Dmg Report N N U.S. Highway 44.17731000 -111.42855200

None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 23 11C297358 6/25/2011 1 C Injury Accident N N U.S. Highway 44.17870300 -111.42908300

None None 50 None Blowing Snow Snow Day 0 0 Monday 09 12C334375 12/24/2012 1 Property Dmg Report N N U.S. Highway 44.17999100 -111.42999600

None None 50 High/Low Shoulder Cloudy Dry Dark, No Street Lights 0 0 Monday 06 14C380032 9/22/2014 1 Property Dmg Report Y N U.S. Highway 44.17999100 -111.42999600

None None 00 None Cloudy Wet Day 0 0 Monday 11 12C323668 7/16/2012 1 Property Dmg Report Y N U.S. Highway 44.18291100 -111.43437600

None None 50 Ruts/Bumps/Holes Clear Dry Dark, No Street Lights 0 1 Friday 21 14C378176 8/29/2014 1 B Injury Accident Y N U.S. Highway 44.18366200 -111.43609600

None None 00 Ruts/Bumps/Holes Cloudy Water â€“ standing/moving Day 0 0 Thursday 10 14C366156 3/6/2014 1 Property Dmg Report N N U.S. Highway 44.18518200 -111.43952700

None None 00 None Clear Dry Dark, No Street Lights 0 0 Saturday 03 14C377773 8/30/2014 1 Property Dmg Report Y N U.S. Highway 44.18518200 -111.43952700

None None 00 None Snow Slush Day 0 0 Friday 14 14C370318 5/9/2014 1 Property Dmg Report N N U.S. Highway 44.19093600 -111.44527400

None None 00 None Clear Ice Dark, No Street Lights 0 0 Friday 21 11C288936 2/18/2011 1 Property Dmg Report -U N U.S. Highway 44.19234800 -111.44575600

None None 50 None Cloudy Dry Day 0 3 Sunday 08 14C379366 9/21/2014 1 C Injury Accident N N U.S. Highway 44.19489308 -111.44647934


None None 50 None Cloudy Ice Dark, No Street Lights 0 1 Wednesday 05 12C315923 3/21/2012 1 A Injury Accident N N U.S. Highway 44.19799200 -111.44755400


None None 50 Washboard Cloudy Ice Dawn or Dusk 0 1 Sunday 16 11C285497 1/2/2011 1 B Injury Accident N U.S. Highway 44.19940300 -111.44800200






None None 50 None Snow Ice Day 0 0 Monday 16 10C285369 12/27/2010 1 Property Dmg Report N U.S. Highway 42.88753646 -111.93454742


None None 00 None Cloudy Wet Day 0 0 Wednesday 15 11C307358 10/5/2011 1 Property Dmg Report N N U.S. Highway 44.20363700 -111.44934700

None None 00 None Clear Ice Day 0 0 Sunday 13 12C313806 2/19/2012 1 Property Dmg Report N N U.S. Highway 44.20928000 -111.45115100

None None 50 None Cloudy Dry Dawn or Dusk 0 0 Saturday 05 14C370586 5/17/2014 1 Property Dmg Report N N U.S. Highway 44.21210200 -111.45205000

None None 50 None Clear Dry Dark, No Street Lights 0 1 Tuesday 20 13C359248 11/26/2013 1 B Injury Accident N N U.S. Highway 44.21492300 -111.45295200

None None 00 Ruts/Bumps/Holes Snow Slush Day 0 1 Thursday 16 11C311217 10/6/2011 1 B Injury Accident -U N U.S. Highway 44.21774500 -111.45385400

None None 00 None Cloudy Dry Day 0 3 Sunday 18 13C354346 8/25/2013 1 A Injury Accident N N U.S. Highway 44.21774500 -111.45385400

None None 50 None Clear Dry Day 0 0 Saturday 09 14C370576 5/17/2014 1 Property Dmg Report N N U.S. Highway 44.21774500 -111.45385400

None None 00 None Clear Ice Day 0 1 Saturday -U 11C310206 12/31/2011 1 C Injury Accident N N U.S. Highway 44.22197800 -111.45520200

None None 00 None Cloudy Snow Day 0 0 Saturday 16 10C263966 4/3/2010 1 Property Dmg Report N U.S. Highway 44.22267779 -111.45541615

None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Friday -U 10C259750 2/12/2010 1 Property Dmg Report N U.S. Highway 44.22408824 -111.45586719

None None 00 None Snow Slush Dark, No Street Lights 0 1 Wednesday 01 14C368886 4/23/2014 1 C Injury Accident N N U.S. Highway 44.22480000 -111.45610500

None None 00 None Clear Dry Dark, No Street Lights 0 0 Thursday 02 14C363478 1/23/2014 1 Property Dmg Report N N U.S. Highway 44.22480000 -111.45610500

None None 50 None Snow Ice Dark, No Street Lights 0 0 Saturday 18 10C279741 11/13/2010 1 Property Dmg Report N U.S. Highway 44.22549888 -111.45631715

None None 00 Ruts/Bumps/Holes Cloudy Ice Day 0 1 Tuesday 11 11C288911 2/22/2011 1 C Injury Accident -U N U.S. Highway 44.22480000 -111.45610500

None None 00 None Clear Snow Day 0 0 Friday 12 12C313029 1/27/2012 1 Property Dmg Report -U N U.S. Highway 44.22903200 -111.45745500

None None 00 None Clear Ice Day 0 0 Monday 11 12C310215 1/2/2012 1 Property Dmg Report N N U.S. Highway 44.23608600 -111.45971400

None None 00 None Cloudy Snow Day 0 0 Friday 17 11C307318 11/18/2011 1 Property Dmg Report N N U.S. Highway 44.23608600 -111.45971400

Failed to Maintain Lane None 00 None Clear Dry Day 0 0 Thursday 06 13C347298 6/6/2013 1 Property Dmg Report N N U.S. Highway 44.23608600 -111.45971400

None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 13C356740 11/6/2013 1 Property Dmg Report N N U.S. Highway 44.23890900 -111.46060800

None None 50 None Snow Ice Day 0 0 Tuesday 10 10C279740 11/9/2010 1 Property Dmg Report N U.S. Highway 44.23819282 -111.46037792



None None 50 None Sleet/Hail Slush Day 0 0 Tuesday 18 14C380090 9/30/2014 1 Property Dmg Report N N U.S. Highway 44.23890900 -111.46060800

None None 00 None Cloudy Slush Day 0 0 Friday 14 14C370304 5/9/2014 1 Property Dmg Report N N U.S. Highway 44.23890900 -111.46060800

None None 00 None Clear Ice Dark, No Street Lights 0 0 Monday 03 10C285482 12/13/2010 1 Property Dmg Report N U.S. Highway 44.23819282 -111.46037792

None None 50 None Clear Dry Dark, No Street Lights 0 1 Friday 23 13C349122 6/21/2013 1 B Injury Accident N N U.S. Highway 44.23786362 -111.46013593

None None 50 None Cloudy Ice Day 0 1 Tuesday 11 11C288765 2/22/2011 1 B Injury Accident N U.S. Highway 44.24032000 -111.46105900

None None 00 None Cloudy Ice Day 0 0 Thursday 12 11C288763 2/17/2011 1 Property Dmg Report -U N U.S. Highway 44.24173100 -111.46150900

None None 00 None Clear Ice Day 0 0 Friday 10 10C259764 2/12/2010 1 Property Dmg Report N U.S. Highway 44.24524651 -111.46262521

None None 00 None Cloudy Slush Day 0 0 Monday 13 12C315954 3/19/2012 1 Property Dmg Report N N U.S. Highway 44.24596100 -111.46287200

None None 00 None Blowing Snow Ice Day 0 0 Friday 13 11C307337 11/18/2011 1 Property Dmg Report N N U.S. Highway 44.24737400 -111.46331600

None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Sunday 21 14C369873 5/4/2014 1 Property Dmg Report N N U.S. Highway 44.24737400 -111.46331600

None None 00 None Cloudy Snow Day 0 1 Saturday 12 11C307430 11/5/2011 1 C Injury Accident N N U.S. Highway 44.25019600 -111.46421200

None None 00 None Clear Dry Day 0 0 Sunday 00 12C322974 7/29/2012 1 Property Dmg Report Y N U.S. Highway 44.25160700 -111.46466400

None None 00 None Rain Wet Day 0 2 Tuesday 10 11C290136 3/15/2011 1 C Injury Accident -U N U.S. Highway 44.26007000 -111.46738300

None None 00 Poor Pavement Markings Clear Dry Dark, No Street Lights 0 0 Saturday 00 12C324111 8/11/2012 1 Property Dmg Report Y N U.S. Highway 44.26148100 -111.46783100

None None 00 None Cloudy Snow Day 0 0 Sunday 13 11C288764 2/20/2011 1 Property Dmg Report -U N U.S. Highway 44.26430100 -111.46874200


None None 50 None Fog Snow Dark, No Street Lights 0 2 Monday 19 13C362160 12/23/2013 1 A Injury Accident N N U.S. Highway 44.26858000 -111.46967800


None None 00 None Cloudy Water â€“ standing/moving Day 0 1 Tuesday 14 11C307395 10/11/2011 1 A Injury Accident N N U.S. Highway 44.27002500 -111.46965600

None None 00 None Snow Slush Day 0 0 Wednesday -U 13C358506 11/20/2013 1 Property Dmg Report N N U.S. Highway 44.27146600 -111.46945100

None None 00 None Snow Ice Day 0 0 Monday 09 12C313809 2/13/2012 1 Property Dmg Report N N U.S. Highway 44.27146600 -111.46945100

None None 00 None Snow Slush Day 0 1 Friday 07 12C319964 4/27/2012 1 B Injury Accident N N U.S. Highway 44.27288000 -111.46906300

None None 00 None Cloudy Ice Day 0 0 Friday 09 10C261868 3/26/2010 1 Property Dmg Report N U.S. Highway 44.27356637 -111.46878053

None None 00 None Cloudy Wet Dawn or Dusk 0 0 Thursday 18 12C316158 3/29/2012 1 Property Dmg Report N N U.S. Highway 44.27426800 -111.46850600


None None 00 None Snow Ice Dark, No Street Lights 0 1 Wednesday -U 10C285400 12/15/2010 1 C Injury Accident N U.S. Highway 44.28167929 -111.46449930

None None 00 None Clear Dry Day 0 0 Monday 08 14C371629 5/26/2014 1 Property Dmg Report N N U.S. Highway 44.28100900 -111.46488100

None None 50 None Cloudy Ice Dark, No Street Lights 0 1 Thursday 00 11C286965 1/27/2011 1 C Injury Accident N U.S. Highway 44.28370400 -111.46342500

None None 50 0 0 11C286965 1/27/2011 2 C Injury Accident N U.S. Highway 44.28370400 -111.46342500

None None 50 None Clear Dry Dark, Street Lights Off 0 0 Sunday 21 13C345123 5/12/2013 1 Property Dmg Report N N U.S. Highway 44.28774400 -111.46123100

None None 50 None Cloudy Ice Day 0 0 Thursday 10 11C286962 1/20/2011 1 Property Dmg Report N U.S. Highway 44.29043700 -111.45976900


None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 22 13C354988 9/14/2013 1 B Injury Accident N N U.S. Highway 44.29178700 -111.45904700

Failed to Maintain Lane None 00 None Clear Dry Dawn or Dusk 1 0 Saturday 06 11C298475 7/23/2011 1 Fatal Accident N N U.S. Highway 44.29595500 -111.45744600

None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 22 13C355019 10/14/2013 1 Property Dmg Report N N U.S. Highway 44.29595500 -111.45744600

None None 50 None Rain Wet Dark, No Street Lights 0 1 Tuesday 21 11C297258 7/5/2011 1 B Injury Accident N N U.S. Highway 44.29595500 -111.45744600

None None 50 None Clear Dry Day 0 0 Sunday 21 12C324361 8/5/2012 1 Property Dmg Report N N U.S. Highway 44.29739100 -111.45722200

None None 00 None Clear Snow Day 0 0 Thursday 09 14C368742 4/3/2014 1 Property Dmg Report N N U.S. Highway 44.29739100 -111.45722200

None None 00 None Cloudy Ice Day 0 1 Thursday 14 11C290145 3/17/2011 1 C Injury Accident -U N U.S. Highway 44.30026700 -111.45681400

None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 23 10C277883 10/11/2010 1 Property Dmg Report N U.S. Highway 44.30818073 -111.45557749

None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 10 12C328358 10/1/2012 1 Property Dmg Report N N U.S. Highway 44.30888700 -111.45548900


None None 50 None Clear Dry Day 0 0 Tuesday 11 11C296270 6/28/2011 1 Property Dmg Report -U N U.S. Highway 44.31032400 -111.45526800


None None 50 None Clear Dry Dark, No Street Lights 0 1 Wednesday 01 10C266045 5/26/2010 1 B Injury Accident N U.S. Highway 44.30961867 -111.45536131


None None 00 None Cloudy Ice Day 0 0 Monday 08 14C382049 10/27/2014 1 Property Dmg Report -U N U.S. Highway 44.31176000 -111.45504200


None None 00 None Clear Ice Dark, No Street Lights 0 0 Sunday -U 12C310231 1/1/2012 1 Property Dmg Report N N U.S. Highway 44.31176000 -111.45504200

None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 01 11C307376 11/6/2011 1 Property Dmg Report N N U.S. Highway 44.31319800 -111.45483100

None None 00 High/Low Shoulder Clear Dry Dark, No Street Lights 0 0 Monday 00 12C330827 11/5/2012 1 Property Dmg Report N N U.S. Highway 44.31463500 -111.45461200

None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Sunday 22 11C285499 1/16/2011 1 Property Dmg Report -U N U.S. Highway 44.32277500 -111.45071100

None None 50 None Rain Wet Day 0 0 Friday 10 12C319511 5/25/2012 1 Property Dmg Report -U N U.S. Highway 44.32277500 -111.45071100

Vision Obstruction None 50 None Fog Dry Dark, No Street Lights 0 0 Saturday 18 10C258467 2/6/2010 1 Property Dmg Report N U.S. Highway 44.32332576 -111.44989344


None None 00 None Snow Ice Dark, No Street Lights 0 0 Friday 16 10C257773 1/22/2010 1 Property Dmg Report N U.S. Highway 44.32775434 -111.44495146

None Other 50 None Clear Dry Day 0 0 Thursday 12 10C276822 9/30/2010 1 Property Dmg Report N U.S. Highway 44.32775434 -111.44495146

None Other 50 0 0 10C276822 9/30/2010 2 Property Dmg Report N U.S. Highway 44.32775434 -111.44495146

None None 50 None Clear Dry Dawn or Dusk 0 0 Tuesday 05 13C344766 5/7/2013 1 Property Dmg Report N N U.S. Highway 44.32838700 -111.44435200

Vision Obstruction None 50 None Clear Dry Dark, No Street Lights 0 0 Monday -U 10C276778 10/11/2010 1 Property Dmg Report N U.S. Highway 44.33323740 -111.43886039


None None 00 None Clear Ice Dark, No Street Lights 0 1 Sunday -U 10C266050 5/2/2010 1 C Injury Accident N U.S. Highway 44.33433556 -111.43764482


None None 00 None Clear Ice Dark, No Street Lights 0 0 Wednesday -U 10C257777 1/20/2010 1 Property Dmg Report N U.S. Highway 44.33433556 -111.43764482

None None 00 None Rain Wet Day 0 0 Thursday 04 13C355028 10/10/2013 1 Property Dmg Report -U N U.S. Highway 44.33493600 -111.43697900


Failed to Maintain Lane None 00 None Blowing Snow Ice Dark, Street Lights On 0 2 Tuesday 15 12C333717 10/16/2012 1 C Injury Accident N N U.S. Highway 44.33710900 -111.43457400

Failed to Maintain Lane None 00 None Cloudy Wet Day 0 0 Sunday 14 12C330011 10/28/2012 1 Property Dmg Report N N U.S. Highway 44.34246000 -111.42816200

None None 00 None Snow Snow Day 0 0 Tuesday 12 11C310667 12/20/2011 1 Property Dmg Report N N U.S. Highway 44.34349700 -111.42677900

None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 23 11C307416 9/24/2011 1 B Injury Accident N N U.S. Highway 44.34454000 -111.42540300


None None 00 None Snow Snow Day 0 1 Friday 10 11C288997 2/18/2011 1 C Injury Accident -U N U.S. Highway 44.34558300 -111.42402800

None None 50 None Cloudy Snow Dawn or Dusk 0 0 Thursday 06 13C356772 11/7/2013 1 Property Dmg Report N N U.S. Highway 44.34662600 -111.42265200


None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 00 11C294874 5/20/2011 1 Property Dmg Report -U N U.S. Highway 44.34974500 -111.41851100

Failed to Maintain Lane None 00 None Snow Snow Day 0 0 Saturday 08 14C386364 12/13/2014 1 Property Dmg Report N N U.S. Highway 44.35078200 -111.41712700

None None 00 None Snow Snow Day 0 0 Friday 15 12C317464 4/6/2012 1 Property Dmg Report N N U.S. Highway 44.35182200 -111.41574700

None None 00 None Clear Dry Dark, No Street Lights 0 1 Saturday 01 11C287964 2/12/2011 1 B Injury Accident -U N U.S. Highway 44.35494200 -111.41160600

None None 50 None Rain Wet Dark, No Street Lights 0 0 Wednesday -U 10C266140 5/26/2010 1 Property Dmg Report N U.S. Highway 44.35559243 -111.41074139

None None 50 None Clear Dry Dawn or Dusk 0 1 Saturday 07 10C279641 10/30/2010 1 C Injury Accident N U.S. Highway 44.35559243 -111.41074139

None None 00 None Clear Dry Dawn or Dusk 0 0 Friday 06 12C324665 8/17/2012 1 Property Dmg Report N N U.S. Highway 44.35701300 -111.40882800



None None 50 None Rain Wet Day 0 0 Tuesday 13 14C376046 8/5/2014 1 Property Dmg Report N N U.S. Highway 44.40925802 -111.37412644




None None 00 None Cloudy Ice Day 0 0 Wednesday 09 10C285494 12/8/2010 1 Property Dmg Report N U.S. Highway 44.37839568 -111.39324077

None None 00 None Cloudy Slush Day 0 0 Sunday 16 10C289241 10/31/2010 1 Property Dmg Report N U.S. Highway 44.37898600 -111.39287500

None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Monday 22 10C257805 1/18/2010 1 Property Dmg Report N U.S. Highway 44.37973924 -111.39240944

None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 00 13C354179 10/1/2013 1 Property Dmg Report -U N U.S. Highway 44.38031000 -111.39205600

None None 50 None Cloudy Ice Dark, No Street Lights 0 0 Monday 17 10C283488 12/20/2010 1 Property Dmg Report N U.S. Highway 44.38163300 -111.39123700

Failed to Maintain Lane None 00 None Clear Dry Dark, No Street Lights 0 0 Monday 19 12C335213 12/31/2012 1 Property Dmg Report N N U.S. Highway 44.38163300 -111.39123700


Vision Obstruction None 50 None Cloudy Snow Day 0 0 Thursday 14 10C256992 1/21/2010 1 Property Dmg Report N U.S. Highway 44.38645693 -111.38825222


None None 00 None Clear Ice Day 0 0 Thursday 16 11C287906 1/27/2011 1 Property Dmg Report -U N U.S. Highway 44.38692900 -111.38795900

None None 50 None Clear Ice Day 0 0 Thursday 11 11C290323 3/17/2011 1 Property Dmg Report N U.S. Highway 44.38692900 -111.38795900



None None 50 None Clear Dry Day 0 1 Sunday 09 13C351972 8/18/2013 1 A Injury Accident N N U.S. Highway 44.37858652 -111.39285135

None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday -U 13C352945 9/16/2013 1 C Injury Accident N N U.S. Highway 44.38692900 -111.38795900

None None 00 High/Low Shoulder Clear Ice Day 0 0 Monday 12 11C307382 11/7/2011 1 Property Dmg Report N N U.S. Highway 44.38957700 -111.38632000

None None 00 High/Low Shoulder Snow Ice Day 0 1 Friday 07 14C367247 3/7/2014 1 B Injury Accident N N U.S. Highway 44.39222400 -111.38468000

None None 00 None Snow Ice Day 0 0 Wednesday -U 10C279710 11/10/2010 1 Property Dmg Report N U.S. Highway 44.39317384 -111.38409215

Drove Left of Center None 50 Ruts/Bumps/Holes Clear Ice Day 0 0 Tuesday 09 10C285397 12/21/2010 1 Property Dmg Report N U.S. Highway 44.39317384 -111.38409215


None None 50 None Clear Dry Day 0 0 Sunday 14 14C374083 6/29/2014 1 Property Dmg Report -U N U.S. Highway 44.39355200 -111.38385700


Exceeded Posted Speed None 50 None Snow Ice Dawn or Dusk 0 1 Tuesday 17 11C285526 1/4/2011 1 B Injury Accident N U.S. Highway 44.39355200 -111.38385700



None None 00 High/Low Shoulder Clear Dry Day 0 0 Sunday 16 11C305551 7/10/2011 1 Property Dmg Report N N U.S. Highway 44.39492400 -111.38300700

None None 50 None Clear Dry Dark, No Street Lights 0 1 Wednesday 21 10C273834 8/18/2010 1 C Injury Accident N U.S. Highway 44.39451709 -111.38325966

Speed Too Fast For Conditions None 50 None Clear Ice Day 0 0 Saturday 10 12C330132 10/27/2012 1 Property Dmg Report N N U.S. Highway 44.39629600 -111.38215700



None None 50 None Clear Dry Day 0 1 Friday 16 14C371688 5/23/2014 1 C Injury Accident -U N U.S. Highway 44.39629600 -111.38215700

None None 50 None Dry Dark, No Street Lights 0 0 Sunday -U 12C319623 5/20/2012 1 Property Dmg Report N N U.S. Highway 44.39629600 -111.38215700

None None 50 None Clear Ice Day 0 0 Saturday 16 13C337958 1/12/2013 1 Property Dmg Report N N U.S. Highway 44.39766700 -111.38130600

None None 50 None Clear Dry Dark, No Street Lights 0 0 Thursday 00 11C306757 11/3/2011 1 Property Dmg Report -U N U.S. Highway 44.39766700 -111.38130600

None None 00 Other Snow Snow Day 0 0 Wednesday 17 11C291630 4/6/2011 1 Property Dmg Report -U N U.S. Highway 44.40041000 -111.37960600

Failed to Yield None 50 None Clear Dry Day 0 1 Sunday 10 12C322944 7/29/2012 1 A Injury Accident N N U.S. Highway 44.36892800 -111.39909620


None None 50 High/Low Shoulder Clear Dry Day 0 2 Sunday 08 14C376016 8/10/2014 1 C Injury Accident N N U.S. Highway 44.40041000 -111.37960600

None None 00 None Rain Slush Day 0 0 Wednesday 12 12C315323 3/14/2012 1 Property Dmg Report N N U.S. Highway 44.40178200 -111.37875600

Failed to Maintain Lane None 00 None Cloudy Snow Day 0 1 Saturday 11 12C330072 10/27/2012 1 A Injury Accident N N U.S. Highway 44.40178200 -111.37875600

None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Saturday 04 14C366006 2/1/2014 1 Property Dmg Report -U N U.S. Highway 44.40315300 -111.37790500

Drove Left of Center None 50 None Sleet/Hail Water â€“ standing/moving Day 0 0 Wednesday 14 13C354098 9/18/2013 1 Property Dmg Report N N U.S. Highway 44.40728100 -111.37539700


None None 50 None Cloudy Wet Day 0 0 Tuesday 15 14C371645 6/3/2014 1 Property Dmg Report N N U.S. Highway 44.40728100 -111.37539700

Failed to Obey Stop Sign None 50 0 0 14C371645 6/3/2014 2 Property Dmg Report N N U.S. Highway 44.40728100 -111.37539700


None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 01 11C299749 8/16/2011 1 Property Dmg Report N N U.S. Highway 44.40728100 -111.37539700


None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday 03 14C379468 9/15/2014 1 C Injury Accident N N U.S. Highway 44.40866400 -111.37478800

None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 12 14C383592 11/8/2014 1 Property Dmg Report -U N U.S. Highway 44.40866400 -111.37478800

None None 00 None Cloudy Slush Day 0 1 Sunday 14 13C342810 4/7/2013 1 B Injury Accident N N U.S. Highway 44.41005600 -111.37435500

None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 12 12C324209 8/8/2012 1 Property Dmg Report N N U.S. Highway 44.41146300 -111.37401800

None None 00 None Snow Ice Dark, Street Lights On 0 0 Monday 20 11C307404 11/7/2011 1 Property Dmg Report N N U.S. Highway 44.41849700 -111.37233200


None None 00 None Snow Ice Day 0 2 Sunday 11 14C367287 3/30/2014 1 B Injury Accident N N U.S. Highway 44.41990300 -111.37199100

None None 50 None Cloudy Ice Day 0 0 Saturday 14 11C310321 12/31/2011 1 Property Dmg Report N N U.S. Highway 44.42271600 -111.37131000


None None 50 None Clear Ice Day 0 0 Thursday 16 10C289784 2/4/2010 1 Property Dmg Report N U.S. Highway 44.42271600 -111.37131000

None None 00 Loose Gravel/Seal Coat Clear Dry Day 0 0 Friday 04 13C352164 9/6/2013 1 Property Dmg Report N N U.S. Highway 44.42271600 -111.37131000

Drove Left of Center None 50 None Snow Snow Dark, No Street Lights 0 0 Sunday 18 14C382105 10/26/2014 1 Property Dmg Report N N U.S. Highway 44.42271600 -111.37131000


None None 00 None Cloudy Ice Day 0 0 Monday -U 12C312354 1/23/2012 1 Property Dmg Report N N U.S. Highway 44.42412200 -111.37096200

None None 00 None Cloudy Ice Day 0 0 Wednesday 10 11C308467 11/30/2011 1 Property Dmg Report N N U.S. Highway 44.42552800 -111.37062100

None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Monday 22 14C367497 3/17/2014 1 Property Dmg Report N N U.S. Highway 44.42552800 -111.37062100

None None 50 None Clear Dry Dawn or Dusk 0 0 Friday 05 14C377772 8/1/2014 1 Property Dmg Report N N U.S. Highway 44.42693500 -111.37028700


None Other 00 None Cloudy Ice Day 0 0 Wednesday 10 10C283606 12/22/2010 1 Property Dmg Report N U.S. Highway 44.42975600 -111.36961600



None None 50 None Cloudy Wet Day 0 0 Tuesday 17 14C375960 7/29/2014 1 Property Dmg Report N N U.S. Highway 44.43545200 -111.36822600


Failed to Maintain Lane None 00 None Clear Ice Dark, No Street Lights 0 0 Thursday 18 12C336050 12/27/2012 1 Property Dmg Report N N U.S. Highway 44.43545200 -111.36822600

None None 50 None Clear Dry Dawn or Dusk 0 1 Thursday 06 12C317424 4/19/2012 1 B Injury Accident N N U.S. Highway 44.43545200 -111.36822600

None None 50 None Snow Ice Day 0 0 Saturday 13 10C279900 11/20/2010 1 Property Dmg Report N U.S. Highway 44.43618141 -111.36805151

Inattention None 50 0 0 10C279900 11/20/2010 2 Property Dmg Report N U.S. Highway 44.43618141 -111.36805151

None None 99 None Cloudy Ice Day 0 0 Friday 15 11C285359 1/7/2011 1 Property Dmg Report -U N U.S. Highway 44.43691000 -111.36787400

None None 00 None Clear Dry Day 0 1 Wednesday 17 11C293191 5/11/2011 1 C Injury Accident -U N U.S. Highway 44.43836800 -111.36752000

None None 50 None Clear Dry Dawn or Dusk 0 0 Saturday 06 11C296242 7/2/2011 1 Property Dmg Report N N U.S. Highway 44.44269000 -111.36614900

None None 50 None Rain Wet Dark, No Street Lights 0 0 Friday 20 13C352921 9/13/2013 1 Property Dmg Report N N U.S. Highway 44.44687100 -111.36406000


None None 50 None Cloudy Ice Day 0 0 Saturday 16 10C255012 1/2/2010 1 Property Dmg Report N U.S. Highway 44.45035536 -111.36231831

None None 50 None Clear Ice Day 0 0 Thursday 10 13C358406 11/21/2013 1 Property Dmg Report N N U.S. Highway 44.45242900 -111.36128200



None None 50 None Clear Dry Day 0 1 Friday -U 12C322949 7/13/2012 1 C Injury Accident N N U.S. Highway 44.45323563 -111.36094093

None None 50 None Clear Ice Day 0 0 Sunday 15 10C256210 1/10/2010 1 Property Dmg Report N U.S. Highway 44.45304779 -111.36096558


None Failed to Yield 50 None Clear Dry Dark, No Street Lights 0 3 Wednesday 19 14C381277 10/15/2014 1 A Injury Accident N N U.S. Highway 44.45242900 -111.36128200


None None 50 None Clear Dry Dark, Street Lights Off 0 0 Sunday 05 10C276076 9/26/2010 1 Property Dmg Report N U.S. Highway 44.45304779 -111.36096558


None None 50 None Snow Ice Dawn or Dusk 0 3 Thursday 17 13C338009 1/24/2013 1 C Injury Accident N N U.S. Highway 44.45639600 -111.35929000

None None 00 Other Snow Ice Dark, No Street Lights 0 0 Tuesday 20 11C287012 1/18/2011 1 Property Dmg Report -U N U.S. Highway 44.45776200 -111.35861300

None None 00 None Cloudy Ice Day 0 0 Tuesday 13 11C307341 11/8/2011 1 Property Dmg Report N N U.S. Highway 44.45776200 -111.35861300

None None 00 None Clear Ice Day 0 0 Wednesday -U 11C289466 3/2/2011 1 Property Dmg Report -U N U.S. Highway 44.44107520 -111.36679400



None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Tuesday 20 11C291089 3/29/2011 1 Property Dmg Report -U N U.S. Highway 44.46321700 -111.35587700

None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 10C276792 10/6/2010 1 Property Dmg Report N U.S. Highway 44.46390076 -111.35554128

None None 00 None Clear Dry Day 0 1 Thursday 12 11C307301 9/15/2011 1 C Injury Accident N N U.S. Highway 44.46867100 -111.35313800


None None 50 None Snow Snow Day 0 1 Monday 09 13C342416 4/8/2013 1 A Injury Accident N N U.S. Highway 44.46867100 -111.35313800


None None 50 None Snow Ice Day 0 0 Sunday 14 11C307349 11/6/2011 1 Property Dmg Report N N U.S. Highway 44.47003500 -111.35245200


None None 00 None Cloudy Dry Day 0 1 Sunday 17 12C316247 4/1/2012 1 C Injury Accident N N U.S. Highway 44.47003500 -111.35245200

None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Monday 21 13C342712 4/8/2013 1 Property Dmg Report N N U.S. Highway 44.47276400 -111.35108900

None None 50 None Cloudy Ice Day 0 0 Friday 09 13C354303 10/4/2013 1 Property Dmg Report N N U.S. Highway 44.47549300 -111.34972600


None None 50 None Clear Ice Day 0 0 Thursday 12 12C310602 1/5/2012 1 Property Dmg Report -U N U.S. Highway 44.47685700 -111.34904500

None None 00 None Cloudy Ice Day 0 0 Monday 09 13C361063 12/30/2013 1 Property Dmg Report N N U.S. Highway 44.47685700 -111.34904500

None None 00 None Cloudy Ice Day 0 0 Tuesday 08 11C291123 4/5/2011 1 Property Dmg Report -U N U.S. Highway 44.47822200 -111.34836500

None None 50 None Snow Ice Day 0 2 Monday 08 11C288983 2/21/2011 1 B Injury Accident -U N U.S. Highway 44.48367600 -111.34562200

None None 50 0 0 11C288983 2/21/2011 2 B Injury Accident -U N U.S. Highway 44.48367600 -111.34562200

None None 51 None Clear Dry Dark, No Street Lights 0 1 Wednesday 03 11C301917 8/24/2011 1 A Injury Accident N N U.S. Highway 44.48367600 -111.34562200


None None 50 None Cloudy Ice Day 0 0 Friday -U 11C289481 3/4/2011 1 Property Dmg Report -U N U.S. Highway 44.48503800 -111.34493400


None None 00 None Clear Ice Day 0 1 Friday 12 10C259810 2/12/2010 1 C Injury Accident N U.S. Highway 44.48981535 -111.34255359

None None 00 None Cloudy Ice Day 0 3 Sunday 11 13C360470 12/22/2013 1 C Injury Accident N N U.S. Highway 44.49049600 -111.34220800

None Speed Too Fast For Conditions 00 None Snow Slush Day 0 0 Tuesday 09 10C263903 4/13/2010 1 Property Dmg Report N U.S. Highway 44.48981535 -111.34255359

None None 00 None Clear Ice Dark, No Street Lights 0 0 Thursday -U 10C257778 1/28/2010 1 Property Dmg Report N U.S. Highway 44.49118049 -111.34187460

None None 50 None Cloudy Dry Day 0 0 Sunday 08 12C330119 10/14/2012 1 Property Dmg Report N N U.S. Highway 44.49322500 -111.34084400

None None 00 None Cloudy Ice Day 0 2 Wednesday 20 10C261781 2/10/2010 1 C Injury Accident N U.S. Highway 44.50060674 -111.33673906

None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Friday -U 11C307427 10/14/2011 1 Property Dmg Report N N U.S. Highway 44.50124700 -111.33623400

Improper Overtaking Speed Too Fast For Conditions 50 None Cloudy Snow Day 0 0 Monday 14 10C257787 1/25/2010 1 Property Dmg Report N U.S. Highway 44.50185549 -111.33574383


None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Friday 02 10C259795 2/5/2010 1 Property Dmg Report N U.S. Highway 44.50185549 -111.33574383

None None 00 None Cloudy Snow Day 0 0 Saturday 14 11C307307 11/5/2011 1 Property Dmg Report N N U.S. Highway 44.50248900 -111.33519900

None None 00 None Clear Ice Day 0 0 Saturday 12 11C311238 12/31/2011 1 Property Dmg Report -U N U.S. Highway 44.50370300 -111.33409900


Overcorrected None 00 None Cloudy Ice Dark, No Street Lights 0 0 Friday 21 10C261851 3/26/2010 1 Property Dmg Report N U.S. Highway 44.50307048 -111.33466990

None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 02 11C288873 2/27/2011 1 Property Dmg Report -U N U.S. Highway 44.50370300 -111.33409900

None None 00 None Clear Slush Day 0 0 Wednesday 15 10C257799 1/27/2010 1 Property Dmg Report N U.S. Highway 44.50427830 -111.33357967

None None 50 Other Blowing Snow Ice Day 0 1 Wednesday 09 12C314917 2/29/2012 1 C Injury Accident N N U.S. Highway 44.50734800 -111.33081100


None None 50 None Cloudy Ice Dark, No Street Lights 0 0 Wednesday 18 10C280335 11/24/2010 1 Property Dmg Report N U.S. Highway 44.50924364 -111.32954894



None None 50 None Clear Dry Day 0 0 Saturday -U 12C322934 7/21/2012 1 Property Dmg Report N N U.S. Highway 44.50996900 -111.32910800


None None 00 None Clear Dry Day 0 0 Friday 09 10C257809 1/29/2010 1 Property Dmg Report N U.S. Highway 44.51475202 -111.32729113

None None 00 None Clear Ice Day 0 1 Monday 13 10C259711 2/1/2010 1 C Injury Accident N U.S. Highway 44.51475202 -111.32729113

None None 50 None Clear Dry Day 0 0 Sunday 13 10C273842 7/18/2010 1 Property Dmg Report N U.S. Highway 44.51475202 -111.32729113


None None 00 None Cloudy Ice Day 0 0 Thursday -U 11C289433 3/3/2011 1 Property Dmg Report N U.S. Highway 44.51547200 -111.32713800

Failed to Maintain Lane None 00 None Clear Ice Day 0 0 Thursday 12 12C332408 11/22/2012 1 Property Dmg Report N N U.S. Highway 44.51547200 -111.32713800

Drove Left of Center None 50 None Clear Dry Dark, No Street Lights 1 1 Friday 02 10C271112 7/16/2010 1 Fatal Accident N U.S. Highway 44.51618006 -111.32706572

None None 50 0 0 10C271112 7/16/2010 2 Fatal Accident N U.S. Highway 44.51618006 -111.32706572

None None 00 None Clear Ice Dark, No Street Lights 0 1 Sunday 19 10C255147 1/3/2010 1 C Injury Accident N U.S. Highway 44.51761610 -111.32696934

None None 50 None Snow Ice Dawn or Dusk 0 0 Monday 18 11C288759 2/21/2011 1 Property Dmg Report -U N U.S. Highway 44.51832700 -111.32693900


Failed to Maintain Lane None 00 None Cloudy Ice Day 0 0 Thursday 12 12C333683 11/29/2012 1 Property Dmg Report N N U.S. Highway 44.51832700 -111.32693900

None None 00 None Snow Ice Day 0 0 Friday -U 10C279708 11/12/2010 1 Property Dmg Report N U.S. Highway 44.51905393 -111.32695618

None None 50 None Cloudy Dry Day 0 4 Wednesday 11 13C345773 5/29/2013 1 B Injury Accident N N U.S. Highway 44.51978100 -111.32700400

None None 00 None Snow Ice Day 0 0 Wednesday 09 10C260756 3/3/2010 1 Property Dmg Report N U.S. Highway 44.52048783 -111.32709588

None None 00 None Cloudy Ice Dark, Street Lights On 0 0 Saturday 10 10C259724 2/13/2010 1 Property Dmg Report N U.S. Highway 44.52191603 -111.32735194




None None 50 None Clear Ice Day 0 0 Sunday 09 11C288777 2/27/2011 1 Property Dmg Report -U N U.S. Highway 44.52122900 -111.32719900


Improper Turn None 50 None Snow Ice Dark, No Street Lights 0 0 Saturday 17 11C288795 2/19/2011 1 Property Dmg Report -U N U.S. Highway 44.52122900 -111.32719900


None None 50 None Snow Ice Dawn or Dusk 0 0 Saturday 16 11C307526 11/19/2011 1 Property Dmg Report -U N U.S. Highway 44.52122900 -111.32719900


Speed Too Fast For Conditions None 51 None Snow Ice Day 0 0 Monday 13 12C313764 2/20/2012 1 Property Dmg Report N N U.S. Highway 44.52122900 -111.32719900


None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 19 11C307411 11/6/2011 1 Property Dmg Report N N U.S. Highway 44.52266000 -111.32749800

Alcohol Impaired None 50 None Cloudy Dry Day 1 2 Saturday 17 14C363930 2/1/2014 1 Fatal Accident N N U.S. Highway 44.52473353 -111.32788056

None None 50 0 0 14C363930 2/1/2014 2 Fatal Accident N N U.S. Highway 44.52473353 -111.32788056

None None 50 None Snow Ice Day 0 2 Friday -U 10C279714 11/12/2010 1 B Injury Accident N U.S. Highway 44.52477502 -111.32796605


None None 00 None Clear Snow Day 0 0 Sunday 13 10C279923 11/21/2010 1 Property Dmg Report N U.S. Highway 44.52620481 -111.32827059



Failed to Maintain Lane None 00 None Clear Dry Dawn or Dusk 0 1 Tuesday 01 12C327395 9/11/2012 1 B Injury Accident N N U.S. Highway 44.52980500 -111.32900200


None None 00 None Clear Ice Day 0 0 Tuesday 08 13C342682 4/9/2013 1 Property Dmg Report N N U.S. Highway 44.53266300 -111.32961200

Failed to Maintain Lane None 00 None Clear Dry Day 0 1 Monday -U 13C349109 7/15/2013 1 A Injury Accident N N U.S. Highway 44.53534524 -111.33008766

None None 00 None Cloudy Snow Day 0 0 Tuesday 08 10C266121 5/4/2010 1 Property Dmg Report N U.S. Highway 44.53764577 -111.33068347

None None 50 None Clear Dry Dawn or Dusk 0 0 Thursday 17 11C287920 2/3/2011 1 Property Dmg Report -U N U.S. Highway 44.53837800 -111.33081900


None None 50 None Clear Dry Day 0 0 Friday -U 13C349123 7/19/2013 1 Property Dmg Report N N U.S. Highway 44.53746032 -111.33081900


None None 50 None Snow Ice Day 0 0 Tuesday -U 10C279787 11/9/2010 1 Property Dmg Report N U.S. Highway 44.53907562 -111.33098768



None None 00 None Cloudy Ice Day 0 0 Sunday 14 10C279884 11/14/2010 1 Property Dmg Report N U.S. Highway 44.54622516 -111.33250566


None None 00 None Clear Ice Dark, No Street Lights 0 0 Saturday 01 12C311194 1/7/2012 1 Property Dmg Report N N U.S. Highway 44.54695300 -111.33262100

None None 00 None Sleet/Hail Wet Day 0 2 Saturday 07 10C266015 5/22/2010 1 A Injury Accident N U.S. Highway 44.54908523 -111.33311063

None None 00 None Rain Wet Day 0 1 Saturday 12 10C273899 8/28/2010 1 B Injury Accident N U.S. Highway 44.55623527 -111.33462435

None None 51 None Cloudy Wet Day 0 1 Monday 14 11C295773 6/13/2011 1 A Injury Accident N N U.S. Highway 44.55838100 -111.33506500

None None 50 None Severe Cross Winds Ice Day 0 0 Thursday 15 11C310276 12/29/2011 1 Property Dmg Report N N U.S. Highway 44.55981000 -111.33536600


Speed Too Fast For Conditions None 00 None Clear Ice Day 0 0 Tuesday 10 12C334313 12/18/2012 1 Property Dmg Report N N U.S. Highway 44.55981000 -111.33536600

None None 00 None Fog Ice Dark, No Street Lights 0 0 Wednesday -U 10C257770 1/20/2010 1 Property Dmg Report N U.S. Highway 44.56052480 -111.33553715

None None 00 None Clear Ice Day 0 1 Tuesday 11 12C310376 1/3/2012 1 C Injury Accident N N U.S. Highway 44.55981000 -111.33536600

None None 50 None Clear Ice Dark, No Street Lights 0 0 Monday 05 14C382295 10/27/2014 1 Property Dmg Report N N U.S. Highway 44.56123900 -111.33566800

Speed Too Fast For Conditions None 50 None Blowing Snow Ice Day 0 0 Tuesday 09 12C330081 10/23/2012 1 Property Dmg Report N N U.S. Highway 44.56266800 -111.33596900

None None 00 None Sleet/Hail Ice Day 0 1 Saturday 11 11C294830 5/28/2011 1 C Injury Accident N N U.S. Highway 44.56695700 -111.33686200

None None 00 None Cloudy Ice Day 0 0 Sunday 12 13C358902 12/8/2013 1 Property Dmg Report N N U.S. Highway 44.57416800 -111.33723000

Speed Too Fast For Conditions None 50 None Cloudy Snow Day 0 0 Monday -U 13C356728 11/4/2013 1 Property Dmg Report N N U.S. Highway 44.57416800 -111.33723000


None None 00 Other Severe Cross Winds Ice Day 0 0 Thursday 04 10C279732 11/18/2010 1 Property Dmg Report N U.S. Highway 44.57490046 -111.33721986

None None 00 None Clear Dry Day 0 1 Tuesday -U 11C296229 6/28/2011 1 C Injury Accident N N U.S. Highway 44.57416800 -111.33723000



None None 50 Other Clear Dry Dawn or Dusk 0 4 Wednesday 21 14C376021 7/23/2014 1 A Injury Accident N N U.S. Highway 44.57996900 -111.33696000

None None 50 None Snow Ice Day 0 1 Saturday 07 11C290631 3/26/2011 1 B Injury Accident -U N U.S. Highway 44.58142300 -111.33689000

None None 50 None Cloudy Ice Day 0 11 Wednesday 12 12C313309 1/18/2012 1 A Injury Accident N N U.S. Highway 44.58142300 -111.33689000






None None 00 None Cloudy Ice Day 0 0 Tuesday 16 10C257830 1/19/2010 1 Property Dmg Report N U.S. Highway 44.58650661 -111.33632696

None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Wednesday 16 11C310012 12/28/2011 1 Property Dmg Report -U N U.S. Highway 44.58867200 -111.33612000


Failed to Yield Speed Too Fast For Conditions 50 None Cloudy Ice Day 0 1 Monday 15 10C283749 12/20/2010 1 B Injury Accident N U.S. Highway 44.58941038 -111.33613761



None None 50 None Blowing Snow Ice Dark, No Street Lights 0 1 Sunday 22 14C367633 3/30/2014 1 B Injury Accident N N U.S. Highway 44.59012000 -111.33613100

None None 00 None Clear Dry Day 0 0 Wednesday 09 14C374243 7/2/2014 1 Property Dmg Report -U N U.S. Highway 44.59156500 -111.33614900


None None 00 None Blowing Snow Ice Day 0 0 Sunday 10 14C362060 1/5/2014 1 Property Dmg Report N N U.S. Highway 44.59878700 -111.33606800

None None 00 None Blowing Snow Ice Dark, No Street Lights 0 1 Tuesday -U 11C308437 11/22/2011 1 C Injury Accident N N U.S. Highway 44.60311800 -111.33585500

Steering Speed Too Fast For Conditions 00 None Severe Cross Winds Ice Dark, No Street Lights 0 0 Sunday 00 14C385617 11/30/2014 1 Property Dmg Report N N U.S. Highway 44.61322300 -111.33537600

None None 00 None Clear Ice Day 0 0 Friday 11 11C291219 4/8/2011 1 Property Dmg Report -U N U.S. Highway 44.61466700 -111.33530600

None None 50 None Clear Dry Day 0 0 Wednesday 20 10C267154 6/2/2010 1 Property Dmg Report N U.S. Highway 44.61685953 -111.33523164

Vision Obstruction None 00 None Cloudy Snow Day 0 1 Tuesday 11 11C291119 3/29/2011 1 C Injury Accident -U N U.S. Highway 44.61755400 -111.33514900


None None 00 None Snow Snow Day 0 0 Tuesday 08 10C289272 11/16/2010 1 Property Dmg Report N U.S. Highway 44.62479100 -111.33483800

None None 50 None Cloudy Snow Day 0 0 Saturday 13 11C307418 11/5/2011 1 Property Dmg Report N N U.S. Highway 44.62897200 -111.33335000

None None 00 None Blowing Snow Ice Day 0 0 Wednesday 14 11C310210 12/28/2011 1 Property Dmg Report N N U.S. Highway 44.63021600 -111.33231400

None None 00 None Cloudy Snow Day 0 0 Saturday 13 12C311935 1/7/2012 1 Property Dmg Report -U N U.S. Highway 44.63238200 -111.32963800

None None 50 None Clear Snow Day 0 2 Thursday 10 14C366177 2/13/2014 1 A Injury Accident N N U.S. Highway 44.63238200 -111.32963800


Failed to Maintain Lane None 00 None Clear Ice Day 0 0 Friday 13 12C332251 11/23/2012 1 Property Dmg Report N N U.S. Highway 44.63335500 -111.32813600

None None 00 None Clear Ice Day 0 0 Saturday 13 12C311213 1/7/2012 1 Property Dmg Report N N U.S. Highway 44.63335500 -111.32813600


None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Monday 20 10C258815 2/1/2010 1 Property Dmg Report N U.S. Highway 44.63381247 -111.32743836

None None 50 None Snow Ice Day 0 0 Wednesday 12 11C288766 2/23/2011 1 Property Dmg Report N U.S. Highway 44.63432900 -111.32663800




Overcorrected None 00 None Clear Ice Day 0 1 Monday 05 11C307334 10/17/2011 1 C Injury Accident N N U.S. Highway 44.63432900 -111.32663800


None None 51 None Clear Snow Day 0 0 Wednesday 10 12C314904 2/22/2012 1 Property Dmg Report -U N U.S. Highway 44.63432900 -111.32663800


None None 50 None Clear Ice Day 0 0 Wednesday 10 12C331629 11/14/2012 1 Property Dmg Report N N U.S. Highway 44.63403205 -111.32709682


None None 50 None Clear Ice Day 0 0 Friday 14 13C360442 12/13/2013 1 Property Dmg Report N N U.S. Highway 44.63432900 -111.32663800

None None 50 None Rain Water â€“ standing/moving Dawn or Dusk 0 1 Saturday 20 13C349156 7/6/2013 1 C Injury Accident N N U.S. Highway 44.63631000 -111.32370100

None None 50 None Clear Ice Dark, No Street Lights 0 0 Tuesday 21 10C279683 11/16/2010 1 Property Dmg Report N U.S. Highway 44.64796210 -111.31477000

Other None 00 None Snow Ice Day 0 0 Saturday 15 11C290585 3/26/2011 1 Property Dmg Report -U N U.S. Highway 44.63993000 -111.32042800


None None 50 None Clear Ice Dark, No Street Lights 0 0 Friday 20 12C310656 1/6/2012 1 Property Dmg Report N N U.S. Highway 44.63993000 -111.32042800




None None 50 None Snow Ice Dark, No Street Lights 0 1 Tuesday 22 13C338976 1/29/2013 1 C Injury Accident -U N U.S. Highway 44.64379600 -111.31770300

None None 00 None Blowing Snow Ice Day 0 0 Thursday 14 11C307446 11/17/2011 1 Property Dmg Report -U N U.S. Highway 44.64379600 -111.31770300

None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 12C324718 8/15/2012 1 Property Dmg Report -U N U.S. Highway 44.64379600 -111.31770300



None None 50 None Clear Dry Day 0 0 Monday 06 14C374149 6/23/2014 1 Property Dmg Report -U N U.S. Highway 44.64766300 -111.31497900



None None 00 None Snow Ice Dawn or Dusk 0 0 Thursday 07 10C267181 4/29/2010 1 Property Dmg Report N U.S. Highway 44.65224085 -111.31210929


None None 00 None Clear Dry Day 0 1 Thursday 07 10C270132 7/15/2010 1 C Injury Accident N U.S. Highway 44.65645225 -111.31069765

None None 00 None Clear Ice Day 0 0 Wednesday 15 12C310616 1/4/2012 1 Property Dmg Report N N U.S. Highway 44.65717300 -111.31046900

None None 00 None Rain Wet Dawn or Dusk 0 0 Sunday 06 11C295770 6/19/2011 1 Property Dmg Report N N U.S. Highway 44.65717300 -111.31046900

Speed Too Fast For Conditions None 00 None Clear Ice Day 0 0 Sunday 09 12C330128 10/28/2012 1 Property Dmg Report N N U.S. Highway 44.65859800 -111.31015600


None None 00 None Snow Snow Day 0 0 Monday -U 10C262189 3/29/2010 1 Property Dmg Report N U.S. Highway 44.65930186 -111.31005082

None None 00 None Cloudy Snow Day 0 1 Wednesday 06 14C367467 3/26/2014 1 B Injury Accident N N U.S. Highway 44.66518500 -111.30053900

None None 00 None Cloudy Dry Day 0 0 Monday 14 13C354127 9/30/2013 1 Property Dmg Report N N U.S. Highway 44.66607700 -111.29895400


Failed to Maintain Lane None 00 None Cloudy Ice Dark, No Street Lights 0 0 Tuesday 21 12C332296 11/20/2012 1 Property Dmg Report N N U.S. Highway 44.66682700 -111.29722800

None None 50 None Cloudy Slush Day 0 0 Saturday 08 12C315271 3/17/2012 1 Property Dmg Report N N U.S. Highway 44.66682700 -111.29722800


None None 50 None Clear Ice Day 0 0 Saturday 09 10C279766 11/6/2010 1 Property Dmg Report N U.S. Highway 44.66720925 -111.29638922

None None 00 None Clear Dry Dawn or Dusk 0 0 Monday 07 14C381282 10/6/2014 1 Property Dmg Report -U N U.S. Highway 44.66754900 -111.29547900

None None 00 None Snow Ice Day 0 0 Monday 10 11C292743 4/25/2011 1 Property Dmg Report -U N U.S. Highway 44.66810900 -111.29361900

None None 00 None Clear Ice Day 0 1 Saturday 09 10C279673 11/6/2010 1 C Injury Accident N U.S. Highway 44.66787909 -111.29459881

None None 00 None Clear Ice Day 0 0 Monday 14 11C289411 3/7/2011 1 Property Dmg Report -U N U.S. Highway 44.66847400 -111.29166400

None None 00 None Blowing Snow Slush Day 0 0 Wednesday 11 12C315375 3/14/2012 1 Property Dmg Report N N U.S. Highway 44.66898900 -111.28978600

None None 00 None Clear Ice Day 0 0 Monday -U 12C317444 4/2/2012 1 Property Dmg Report N N U.S. Highway 44.66898900 -111.28978600

None None 50 None Clear Slush Day 0 1 Friday -U 12C317679 4/27/2012 1 C Injury Accident N N U.S. Highway 44.66898900 -111.28978600

None None 00 None Cloudy Ice Day 0 0 Monday -U 13C356028 10/28/2013 1 Property Dmg Report N N U.S. Highway 44.66898900 -111.28978600

None None 50 None Blowing Snow Slush Day 0 0 Thursday 14 11C294845 5/26/2011 1 Property Dmg Report N N U.S. Highway 44.67149500 -111.28491800

None None 00 None Snow Slush Day 0 1 Saturday 14 14C367913 3/29/2014 1 C Injury Accident N N U.S. Highway 44.67206200 -111.28305900

None None 00 None Cloudy Ice Day 0 1 Saturday -U 10C285463 12/11/2010 1 C Injury Accident N U.S. Highway 44.67238994 -111.28215632

None None 50 None Snow Snow Dawn or Dusk 0 0 Tuesday 06 11C288913 2/22/2011 1 Property Dmg Report N U.S. Highway 44.67263500 -111.28120400


None None 50 None Snow Wet Dark, No Street Lights 0 0 Thursday 20 13C354079 10/3/2013 1 Property Dmg Report -U N U.S. Highway 44.67352003 -111.27815701

None None 50 None Clear Dry Dawn or Dusk 0 0 Sunday 18 12C328309 10/7/2012 1 Property Dmg Report N N U.S. Highway 44.67321300 -111.27935100



None None 00 None Snow Ice Dark, No Street Lights 0 0 Saturday 19 11C290245 3/19/2011 1 Property Dmg Report -U N U.S. Highway 44.67458000 -111.27579800

Appendix C Weather Data

Appendix C - Weather Data at Henrys Lake Station (2010-2014)

Time Year Grip Level>=0.6 Water Layer>0 Ice Layer>0 Snow Layer>0 Alarm Warning Ice/Snow Layer>0

Jan-10 2010

Feb-10 2010

Mar-10 2010

Apr-10 2010

May-10 2010

Jun-10 2010

Jul-10 2010

Aug-10 2010

Sep-10 2010 0.00% 0.00% 0.00% 7.13% 0.00% 7.13%

Oct-10 2010 0.11% 7.41% 0.08% 6.80% 0.11% 6.80%

Nov-10 2010 51.24% 14.95% 22.04% 55.19% 51.01% 55.61%

Dec-10 2010 79.12% 6.65% 41.84% 80.51% 77.44% 80.77%

Jan-11 2011 51.03% 23.23% 28.25% 50.46% 39.87% 51.05%

Feb-11 2011 43.71% 2.16% 18.46% 43.97% 43.25% 44.01%

Mar-11 2011 30.02% 16.19% 22.62% 32.45% 29.75% 33.10%

Apr-11 2011 14.07% 19.55% 12.88% 14.73% 13.89% 15.60%

May-11 2011 0.41% 26.81% 0.98% 0.57% 0.41% 1.12%

Jun-11 2011 0.04% 12.98% 0.00% 0.00% 0.04% 0.00%

Jul-11 2011 0.00% 4.86% 0.00% 0.00% 0.00% 0.00%

Aug-11 2011 0.00% 2.72% 0.00% 0.00% 0.00% 0.00%

Sep-11 2011 0.04% 3.03% 0.00% 0.00% 0.00% 0.00%

Oct-11 2011 0.78% 20.93% 1.46% 1.12% 0.78% 1.46%

Nov-11 2011 36.78% 8.03% 27.57% 37.58% 37.02% 37.81%

Dec-11 2011 19.13% 2.96% 11.99% 19.47% 19.10% 19.72%

Jan-12 2012 53.88% 2.41% 30.41% 55.39% 53.81% 55.39%

Feb-12 2012 46.80% 10.20% 22.73% 51.11% 46.74% 51.90%

Mar-12 2012 22.91% 24.35% 19.25% 24.72% 22.84% 25.63%

Apr-12 2012 4.83% 17.98% 3.71% 5.05% 4.75% 5.27%

May-12 2012 0.74% 14.53% 0.98% 1.05% 0.74% 1.15%

Jun-12 2012 0.00% 6.96% 0.00% 0.00% 0.00% 0.00%

Jul-12 2012 0.00% 4.35% 0.00% 0.00% 0.00% 0.00%

Aug-12 2012 0.03% 1.19% 0.00% 0.00% 0.03% 0.00%

Sep-12 2012 0.07% 5.47% 0.00% 0.00% 0.00% 0.00%

Oct-12 2012 5.67% 8.32% 5.80% 5.84% 5.66% 6.14%

Nov-12 2012 10.66% 18.20% 8.65% 11.95% 10.55% 12.38%

Dec-12 2012 64.16% 18.14% 61.89% 70.40% 64.28% 71.11%

Jan-13 2013 48.37% 12.40% 47.62% 51.87% 48.47% 51.97%

Feb-13 2013 27.31% 5.78% 25.48% 28.87% 26.91% 28.91%

Mar-13 2013 10.91% 10.67% 10.46% 12.10% 10.95% 12.31%

Apr-13 2013 6.75% 16.40% 7.35% 7.28% 6.71% 7.97%

May-13 2013 0.10% 17.95% 0.00% 0.00% 0.07% 0.00%

Jun-13 2013 0.00% 6.50% 0.00% 0.00% 0.00% 0.00%

Jul-13 2013 0.03% 4.92% 0.00% 0.00% 0.03% 0.00%

Aug-13 2013 0.00% 1.78% 0.00% 0.00% 0.00% 0.00%

Sep-13 2013 0.03% 23.23% 0.00% 0.00% 0.03% 0.00%

Oct-13 2013 1.46% 10.68% 0.95% 2.03% 1.45% 2.27%

Nov-13 2013 11.28% 17.74% 8.00% 13.06% 11.21% 13.31%

Dec-13 2013 50.43% 8.76% 37.33% 53.80% 50.08% 54.01%

Jan-14 2014 34.02% 11.58% 34.67% 37.76% 33.77% 38.74%

Feb-14 2014 39.21% 14.96% 25.77% 42.10% 39.49% 42.48%

Mar-14 2014 26.99% 17.53% 17.42% 28.29% 27.31% 29.04%

Apr-14 2014 3.02% 18.58% 1.94% 3.05% 2.98% 3.20%

May-14 2014 0.83% 11.85% 1.05% 0.94% 0.77% 1.16%

Jun-14 2014 0.00% 13.11% 0.00% 0.00% 0.00% 0.00%

Jul-14 2014 0.00% 2.29% 0.00% 0.00% 0.00% 0.00%

Aug-14 2014 0.07% 16.95% 0.00% 0.00% 0.03% 0.00%

Sep-14 2014 0.00% 16.49% 0.00% 0.00% 0.00% 0.00%

Oct-14 2014 0.71% 7.32% 0.30% 1.01% 0.67% 1.01%

Nov-14 2014 15.26% 20.31% 15.67% 18.32% 15.29% 19.61%

Dec-14 2014 31.39% 42.32% 35.67% 33.63% 31.00% 36.18%

Appendix D Comparison of 6’ vs. 8’ Shoulders

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FigureD-1Comparison of Expected Change in Crashes (6' vs. 8' Shoulders)


Existing Shoulder Width8 Feet6 Feet4-5 Feet2-3 Feet

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Expected Change in Crashes (8' Shoulders)0%1-7%8-14%15-21%22-28%29-35%

Expected Change in Crashes (6' Shoulders)0%1-7%8-14%15-21%22-28%

0 5 10 15 20 Miles

Appendix E Example Treatment Locations

US 20: Chester to Montana Safety Corridor Plan November 2016 Appendix E

E-2 Kittelson & Associates, Inc.

Potential location to: - Add Alternating Passing Lanes (2+1)

MP 355 Image Source: Google

Potential location to: - Widen Shoulder

MP 384

Image Source: Google

US 20: Chester to Montana Safety Corridor Plan November 2016 Appendix E

E-3 Kittelson & Associates, Inc.

Potential location to: - Add Alternating

Passing Lanes (2+1)

- Widen Shoulders

MP 399 Image Source: Google

Documents

Idaho Transportation Department US 20: CHESTER TO MONTANA ... · ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a mixture of at-grade and grade-separated