The origin-destination (OD) survey was conducted using video cameras. Passing vehicle’s license plates were captured on tape for approximately 8 hours on a typical weekday. In total, over 20,000 vehicles were recorded. These tapes were later processed to generate a database containing fields for the vehicle license plate, location, direction, time, and type. Four survey station locations were established. These survey stations were considered the most likely routes that TH 43 Bridge traffic would use in Winona.

The OD survey station sites are shown in Figure 1 to the right and are as follows: • Site 1, TH 43 Bridge

• Site 2, Huff Street

• Site 3, Main Street (TH 43)

• Site 4, Mankato Avenue

Ten-percent of this traffic passed the Huff Street location (#2), 14% passed Main Street (#3), and 9% passed the Mankato Avenue location (#4). The remainder of the traffic dispersed to other streets in the area. The data also indicated that truck traffic is a relatively small component of overall traffic on the studied streets. The TH 43 Bridge had an average of 4.3% trucks during the study period. This compares with a statewide average of about 10-percent trucks for State Trunk Highways.

BRIDGE TRAFFIC FORECASTS Another component of the study process was to develop traffic forecasts for the TH Bridge to assist in determining whether and when it needs to be expanded to 4 lanes. Traffic forecasts for the years 2033 (25- year) and 2058 (50-year) were developed. These forecasts were estimated based on the historical growth pattern for the TH 43 Bridge. The forecast 2033 average daily traffic (ADT) is 17,700 vehicles/day while the forecast 2058 ADT is 27,600 vehicles/day. Based on these forecasts it can be concluded that a 4-lane road is needed to accommodate the anticipated 2058 traffic, while the 2033 traffic will draw near the threshold for what a 2-lane bridge can handle.

FOR MORE INFORMATION... Individuals interested in obtaining additional information regarding the Winona Origin-Destination Study are encouraged to contact the Mn/DOT Project Manager:

Jai Kalsy, PE Mn/DOT District 6 – Rochester 2900 48th Street NW Rochester, MN 55901 507.286.7545 jai.kalsy@dot.state.mn.us

TH 43 River Bridge Origin-Destination and

Traffic Circulation Study - Executive Summary

MN/DOT DISTRICT 6 – ROCHESTER (FEBRUARY 2009)The Minnesota Department of Transportation (Mn/DOT) is planning to replace the Trunk Highway (TH) 43 Bridge over the Mississippi River in Winona. Various alternatives will be considered for the project. To assist in the development of alternatives, Mn/DOT gathered information on the traffic patterns and traffic circulation on the Minnesota side of the bridge. A traffic origin-destination study was performed and traffic counts were conducted at several intersections and roadway locations near the TH 43 Bridge. The information collected is summarized in this brochure and detailed in the study report titled “Origin-Destination and Traffic Circulation Study, Trunk Highway 43 Bridge Area, February 2009.” The information learned from this study will provide insights into traffic patterns for the evaluation of alternatives for the future replacement of the TH 43 Bridge.

ORIGIN-DESTINATION STUDY SUMMARY

The vehicle license plate database was then used to match license plates at the four survey stations to determine which routes vehicles took in traveling to\from the TH 43 Bridge.

The results of the origin-destination analysis indicate that traffic crossing the TH 43 Bridge quickly spreads out along several routes as it enters Winona.

Figure 1: Study Area With OD Survey Sites

Some of the major findings and implications from the study analysis include:

• Inbound TH 43 Bridge traffic disperses quickly as it enters Winona.

• Similar to the inbound traffic, the outbound TH 43 Bridge traffic comes from a wide variety of routes that converge on the bridge touchdown point.

• It appears TH 43 Bridge traffic is primarily “local” traffic oriented to places within Winona.

• Broadway is the main east/west traffic carrier in this area, with 5th Street the next most important east/west traffic carrier. Fourth Street appears to be mainly a feeder to the TH 43 Bridge, rather than a major east/west route.

• The TH 43 route designation through downtown Winona does not appear to be a big factor in people’s choice of routes. Only about 14% of the TH 43 traffic on the bridge is still on TH 43 south of Broadway.

• Overall, the TH 43 bridge traffic splits about 50% to the east and 50% to the west of Winona Street in Winona.

• Based on the Traffic Circulation Study, approximately 20% of the TH 43 Bridge traffic was destined north of 4th Street towards Riverview Drive (port area).

• The long-range (50-year) forecast traffic for the TH 43 bridge indicates that a 4-lane bridge is needed.

STUDY FINDINGS AND IMPLICATIONS

WISCONSIN

Mississippi River5th St

3rd St

2nd St

1

23

4

Lake Winona

Lake Winona

4th St

12th St

County H

wy 32

Steu

ben

St

Wabasha St

9th St

Hom

er Rd

Siou

x St

Win

ona

St

West Bruns

Cla

rks

L a

Cl a

rks

L a

9th St

11th St

Orr

in S

t

Col

lege

view

St

Har

r iet S

t

Sebo

St

2nd St

John

son

St

5th St

W Service Dr

3rd St

US Hwy 61

US Hwy 61

11th St

US Hw

y 14

SHwy

14

Ben

St

Lake Blvd

Parks

Ave

3rd St

Wils

on St

High

Fore

st St

Olm

stea

d St

13th St

Kraemer Dr

Service Dr

Mai

n St

Linc

oln

St

4th St

Randall St

Laird

St

6th St

Dak

ota

St

Wal

nut S

t

Hanover St

Buch

anan

St

Wabasha St

John

son

St

Hilb

ert

St

Summit Dr

13th St

RAMP

4th St

Mun

icip

al S

t 223

St C

harle

s St

12th St

Gar

field

St

Dak

ota

St

14th St

13th St 12th St

Car

imon

a St

Olm

stea

d S t

37th

Ave

Vista

Dr

Kerry Ct

Sanborn St

Lakeview Ave

Lorrai ne

Ct

Min

neso

ta S

t

Har

riet S

t

4th St

Wi ls

on St

Win

ona

St

John

son

St

Parkview Ave

th Av

e

Theurer Blvd

7th St

Zum

bro

St

Wal

l St

Way

ne S

t Gou

ld S

t

Lafa

yette

St

11th St

5th St

9th St

Mcc

onno

n Rd

Che

stnu

t St

Mar

ket

St

Old W Bruns

Valley Rd

Sharon Ct

Ham

ilton

St

12th St

Crestview

Cir

Mac

eman

St La

faye

tte St

Sto

ne S

t

6th St

6th St

Lake Park

Dr

Whit

ten St

Pelze

r St

9th St

North St

Hilb

ert

St

Cum

min

gs St

Vila

St

38th

Ave

Libe

rty St

Monroe St8th St

Eck

ert S

t

th Ave

13th St

Jack

son

St

Fran

cis

Marian Ct

10th St

10th St

11th St

Stat

e H

wy

43

John

St

9th St

10th St

Bie

n ce

St

Woodpark

Rd

6th St

Hig

h S

t

Wal

l St

9th St

Glen

La

3rd St

Vine

St

Hia

wat

ha B

lvd

Lake St

Front St

Terra

c e La

Fran

klin

St

12th St

Man

kato

Ave

Sun

set

Dr

Cen

ter S

t

12th St

Gra

nd St

4th St

11th St

11th St

Was

hing

ton

St

Wincrest Dr

Was

hing

ton

St

10th St

Sanborn St

Win

ona

St

Kans

as St

Broadway9th St

Mar

ket S

t

Har

riet S

t

Cen

ter

St

Sanborn St 7th St

Car

imon

a St

8th St

12th St

Len o

x S

t

e

2nd St

N Ba

ker

St

Man

kato

Ave

Fairf

ax S

t

Druey

Ct

Park La

2nd St

Oak

St

34th

Ave

Go uld

St

4th St

Har

vest

er A

ve

Municipal Street

133

Terr

y La

Wabasha St

Sto

ne S

t

35th

Ave

Bluf

fview

Cir

Mec

hani

c S

t Front St #1

Garven Heights Rd

Con

rad

Dr

Barbara Ct

Elm

St

Gale St

Prai

rie Is

land

Rd

Deb

orah

Ave

Highland Dr

Sun

set D

r

Marian St

Elm

hers

t St

Ridgewood Dr

Glen Mary Rd

Cotto

nwoo

d Dr

Municipal Street 149

Unknown

or

No Streetname

Levee Dr

Heights Blvd

Municipal St 152

Shives Rd

Frontenac Dr

Bruski Dr

Riverview Dr

Ew

ing

St

Man

kato

Ave

Huf

f St

Wils

ie St

Suga

r Lo

af R

d

Parks Ave

Parks Ave

Parks

Ave

Hig

hla n

d D

r

Wal

nut

St

Gle n

Ech o La

Gle

n c h

o R

d

Lee

St

th Av

e

S Bak

er S

t

Bie

rce

StO

tis S

t

Mai

n St

Mc

Brid

e S

t

Cha

tfiel

d St

Kerry

Dr

Kerry Dr

Mai

n St

Municipal St 9

High

Rd

High

Rd

RAMP

Ron

ald

Ave

Gl endal

Rd

Wes

tdal

e Av

e

Skyline Dr

Edgewood Rd

Ker ry D

r

Unknown or No Streetname

0 0.25 0.5 0.750.125Mile

Bridge

Huff Street

Main Street

Mankato Avenue

1

2

3

4

The second component of the overall process was the traffic circulation study which involved collecting and reviewing traffic volume information for roadway segments and intersections near the TH 43 Bridge in Winona. Field counts using tube counters were conducted on roadway segments to determine the average daily traffic (ADT) and the hourly distribution of traffic for a typical weekday. Turning movement counts were also conducted at ten intersections during the peak traffic periods of the day in order to see how traffic moved through the intersections near the TH 43 Bridge.

directional distribution of traffic heading to the TH 43 Bridge (traffic outbound from Winona). This information suggests that traffic using the TH 43 Bridge quickly disperses as it moves away from the bridge, with no one route receiving a majority of the traffic.

Mississippi River

Brid

ge100%

22%

30%

Broadway

5th St

4th St

3rd St

Har

riet S

t

Huf

f St

Win

ona

St

Was

hing

ton

St

John

son

St

Mai

n S

t

Cen

ter S

t

Stat

e H

wy

43

Wabasha St

Sanborn St

1% 42%

3%

19%

5%

20%

9%

17%

14%

2%

6%

28%

12%

2%

0.1%9%

9%9%

6%

4%5%

11% 14%

0 500250Feet

Percent of Inbound Traffic from Bridge

State Highway43 Bridge

XX% Mississippi River

Brid

ge100%

20%

28%

Broadway

5th St

4th St

3rd St

Har

riet S

t

Huf

f St

Win

ona

St

Was

hing

ton

St

John

son

St

Mai

n S

t

Cen

terS

t

Stat

e H

wy

43

Wabasha St

Sanborn St

1% 45%

6%

22%

4%

18%

10%

17%

12%

3%

5%

26%

8%1%

0.1%

9%9%

9%6%

3%4%

12% 15%

0 500250Feet

Percent of Outbound Traffic To Bridge

State Highway43 Bridge

XX%

TRAFFIC CIRCULATION STUDY SUMMARY

The traffic turning movement counts were conducted on October 21st and 22nd, 2008. At each intersection (Figure3), counts were performed from 6:30 AM to 9:30 AM, from 11:00 AM to 1:30 PM, and from 3:00 PM to 6:00 PM. Based on this data peak hour traffic volumes were determined for the AM, Midday, and PM peak periods. The PM peak hour (4 PM to 5 PM) volumes for the study intersections are illustrated in Figure 3.

Using the information from the turning movement counts, the directional distribution of traffic using the TH 43 Bridge was estimated. Figure 4 shows the estimated directional distribution of traffic from the TH 43 Bridge (traffic inbound to Winona), while

The existing weekday ADT for roadways near the TH 43 Bridge are shown in Figure 2 to the right. The information in this figure was compiled from the field count data, from ADT information available from Mn/DOT, and from estimates based on the turning movement count information.

Figure 3: 2008 PM Peak Hour Volumes

Figure 4: Directional Distribution of Traffic from the TH 43 Bridge

Figure 5: Directional Distribution of Traffic to the TH 43 Bridge

2nd St

4th St

3rd St

Wal

nut S

t

Wabasha St

John

son

St

Har

riet S

t

Wils

on St

Lafa

yette

St

Stat

e H

wy

43

Fran

klin

StCent

er St

Was

hing

ton

St

Win

ona

St

St

9th St

Mar

ket S

t

Har

riet S

t

Front St #1

Levee Dr

Huf

f St M

ain

St

Gra

nd St

6th St

Broadway

Mississippi River

Brid

ge 0 0.20.1Miles

BROADWAY ST

MAI

N S

T

404918

96713

539

58401114

45369

48

5th ST

MAI

N S

T

444826

33919

026

2114635

38289

31

4th ST

MAI

N S

T

149

43136

1716332

2917224

808317

4th ST

WIN

ON

A ST

11 7217

1449372

1830360

6329218

5th ST

WIN

ON

A ST

71375

1443110

726626

9216155

BROADWAY ST

WIN

ON

A ST

3

2211301233

1248057

5355

25

4th ST

HUFF

ST

179419

220

83186

331366

2210

2

5th ST

HUFF

ST

42 99204

4628349

98206

78

43212

41

BROADWAY ST

HUFF

ST

46 69271

4029566

12736042

34259

29

WABASHA ST

HUFF

ST

13 38375

134476

45922

178

9

Mississippi River

Brid

ge

7,600

6,900

6,800

4,400

11,300

3,700

840

1,800

10,600

9,500

8,700

7,700

9,400

700

9,000 10,200

1,500

8,4006,700

5,200650 6,400 4,200

6,200

10,900 12,000

5,400

3,450

8,600

6,7002,650

Broadway

5th St

4th St

3rd St

Har

riet S

t

Huf

f St

Win

ona

St

Was

hing

ton

St

John

son

St

Mai

n S

t

Cen

ter S

t

Stat

e H

wy

43

Wabasha St

Sanborn St

6th St

2nd St

Wils

o n S

t

Riverview Dr

7th St

8th St

2008 ADT from Field Count

Estimated 2008 ADT frompeak hour volume

AADT from 2007 MnDOTTraffic Volume Map

0 500250Feet

XXXX

XXXX

XXXX

Figure 2: Existing Average Daily Traffic Volumes

TRAFFIC CIRCULATION STUDY SUMMARY (CONTINUED)