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PZ Case 18-25

OFFICE OF THE CITY ADMINISTRATOR Johnston, Iowa

AGENDA COMMUNICATION September 4th, 2018

SUBJECT: Consider approval of Resolution 18-251; a resolution approving the preliminary plat for Birchwood Crossing Plat 8 and Wright Fields Plat 1. The subject property is located south of NW 54th Avenue and west of Timber Ridge Elementary School (PZ Case 18-25).

ACTION REQUIRED: _ Ordinance X Resolution Approval Receive/File Attorney Review

SYNOPSIS: Hubbell Realty Company and Wright Fields Inc. have submitted a preliminary plat for the subdivision of 14.34 acres into 25 lots for single family homes and the extension of Birchwood Court to NW 54th Avenue. The subject property is currently being processed for annexation into the City of Johnston. The proposed annexation is progressing separate from this proposed development. The subject property is located south of NW 54th Avenue and west of Timber Ridge Elementary School.

RECOMMENDATION:

The Planning & Zoning Commission considered this item at their regular meeting on August 27th, 2018 and recommended approval of PZ Case No. 18-25; the preliminary plat for Birchwood Crossing Plat 8 & Wright Fields Plat 1 subject to the following conditions:

1. The project shall be in conformance and in accordance with the requirements, standards and regulations of the City of Johnston, and any other requirement of state or federal law or administrative rule.

2. A full SWPPP, a NPDES permit from the Iowa DNR, and a City Grading Permit shall be provided prior to any ground disturbing activity on the site.

3. A Stormwater Management Facilities Maintenance Agreement shall be provided and accepted by the City Council prior to approval of a final plat.

4. City Council approval of the preliminary plat shall be subject to Polk County deferral of their review authority to the City of Johnston, Polk County approval of the preliminary plat subject to City of Johnston subdivision regulations, or completion of annexation of the subject property into the City of Johnston, whichever occurs first.

5. The City Council may permit the construction plans to be approved in a phased manner so as to permit the commencement of construction of those improvements currently within the City of Johnston while the subject property progresses through the

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annexation process. Should Polk County defer approval to the City of Johnston or approve the plans prior to annexation being complete, the public improvements within un-incorporated Polk County may commence prior to completion of the annexation.

6. Annexation of the subject property into the City of Johnston shall be completed prior to approval of a final plat for any portion of the subject property.

7. The applicant shall be responsible for acquiring any necessary off-site easement for sanitary sewer extension prior to the construction of the proposed sanitary sewer outside the boundaries of public right-of-way.

8. The preliminary plat must be amended and the following items shall be completed prior to Council approval of the construction plans for Birchwood Crossing Plat 8 & Wright Fields Plat 1 :

a. Identify the locations for CBUs. b. Update the proposed zoning note to indicate that the R-2

zoning is intended for Birchwood Crossing Plat 8. c. Add a note that Lot 1A will be tied to Lot 1. d. Remove the building setback lines from Lot 1A as this will

be an unbuildable lot tied to Lot. e. Provide a storm sewer easements for the 24” storm sewer

that encroaches on the front of Lots 1 & 2 of the portion of the subject property to become Wright Fields Plat 1.

f. Update the storm sewer from intake 8-1 to intake 8-8 to ensure that this leg crosses the street perpendicularly.

g. Address all comments from the memo provided by Foth Infrastructure and Environment, LLC, dated August 21st, 2018.

Motion by , seconded by to approve Resolution 18-251. Attachments: Aerial Vicinity Map;

Preliminary Plat, prepared by ERG, dated August 13, 2018; Overview of Birchwood Crossing Plat 7 and Birchwood Crossing Plat 8 & Wright Fields Plat 1 combined; Foth Infrastructure & Environment Development Review Comments, dated August 21st, 2018; Neighborhood Mailing Notice and Mailing List;

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RESOLUTION 18-251

A RESOLUTION APPROVING THE PRELIMINARY PLAT FOR BIRCHWOOD CROSSING PLAT 8 & WRIGHT FIELDS PLAT 1. THE PROPERTY IS LOCATED

SOUTH OF NW 54TH AVENUE AND IMMEDITALY WEST OF TIMBER RIDGE ELEMENTARY SCHOOL.

WHEREAS, the Planning & Zoning Commission has reviewed this request during its regular meeting on August 27th, 2018, and recommended approval of PZ Case No. 18-25 subject to the conditions outlined in their motion, and,

NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF JOHNSTON, IOWA, that, the Preliminary Plat for Birchwood Crossing Plat 8 & Wright Fields Plat 1 is hereby approved subject to the following conditions:

1. The project shall be in conformance and in accordance with the requirements, standards and regulations of the City of Johnston, and any other requirement of state or federal law or administrative rule.

2. A full SWPPP and a NPDES permit from the State of Iowa shall be submitted, reviewed, and approved prior to the issuance of a City Grading Permit or any land disturbing activity.

3. A Stormwater Management Facilities Maintenance Agreement shall be provided and accepted by the City Council prior to approval of a final plat.

4. City Council approval of the preliminary plat shall be subject to Polk County deferral of their review authority to the City of Johnston, Polk County approval of the preliminary plat subject to City of Johnston subdivision regulations, or completion of annexation of the subject property into the City of Johnston, whichever occurs first.

5. The City Council may approve the construction plans in a phased manner so as to permit the commencement of construction of those improvements currently within the City of Johnston while the subject property progresses through the annexation process. Should Polk County defer approval to the City of Johnston or approve the plans prior to annexation being complete, the public improvements within un-incorporated Polk County may commence prior to completion of the annexation.

6. Annexation of the subject property into the City of Johnston shall be completed prior to approval of a final plat for any portion of the subject property.

7. The applicant shall be responsible for acquiring any necessary off-site easement for sanitary sewer extension prior to the construction of the proposed sanitary sewer outside the boundaries of public right-of-way.

8. The preliminary plat must be amended and the following items shall be completed prior to Council approval of the construction plans for Birchwood Crossing Plat 8 & Wright Fields Plat 1:

a. Identify the locations for CBUs. b. Update the proposed zoning note to indicate that the R-2 zoning is intended for

Birchwood Crossing Plat 8. c. Add a note that Lot 1A will be tied to Lot 1. d. Remove the building setback lines from Lot 1A as this will be an unbuildable lot

tied to Lot.

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e. Provide a storm sewer easements for the 24” storm sewer that encroaches on the front of Lots 1 & 2 of the portion of the subject property to become Wright Fields Plat 1.

f. Update the storm sewer from intake 8-1 to intake 8-8 to ensure that this leg crosses the street perpendicularly.

g. Address all comments from the memo provided by Foth Infrastructure and Environment, LLC, dated August 21st, 2018.

PASSED AND APPROVED this 4th day of September, 2018.

_______________________ PAULA S. DIERENFELD, MAYOR

ATTEST: CYNDEE RHAMES, CITY CLERK ROLL CALL VOTE: Aye Nay Absent Abstain Brown ___ ___ ___ ___ Martin ___ ___ ___ ___ Cope ___ ___ ___ ___ Evans ___ ___ ___ ___ Temple ___ ___ ___ ___

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PROPERTY OWNERS:

Hubbell Realty Company 6900 Westown Parkway West Des Moines, IA, 50266 Wright Fields, Inc. PO Box 3577 Pinellas Park, FL, 33780

APPLICANT: Hubbell Realty Company 6900 Westown Parkway West Des Moines, IA, 50266

REPRESENATIVE: Engineering Resource Group, Inc. 2413 Grand Avenue Des Moines, IA, 50312

BACKGROUND & PRIOR APPROVALS:

The subject property is currently within un-incorporated Polk County. As such, the city has taken no prior action on these properties specifically. This section will address the general background surrounding the history of the extension of Birchwood Court (to be named Carter Court on this property) to NW 54th Avenue. In September 1995 the Johnston City Council approved Ordinance 468 which established the zoning for the Birchwood Crossing Planned Unit Development. The plans for the development included filling a large drainageway which existed at the time to increase buildable commercial area with interstate frontage, however this area had limited access. A traffic study was completed with the initial Planned Unit Development application which identified a need for a secondary connection to the site prior to development of all commercial lots due to the limited access to areas of the site. The need for a secondary connection was incorporated into the PUD ordinance as a requirement prior to development of all commercial lots within the development. The initial PUD ordinance was amended on two occasions with the most recent amendment occurring via Ordinance 864. Each subsequent amendment continued to require a secondary connection to the site, prior to development of all commercial lots. In 2000 there was a second traffic study completed for Birchwood Crossing which confirmed the need to make a secondary connection to the site for better emergency access. A third traffic study for Birchwood Crossing was completed in 2004. This third traffic study continued to confirm the need to make a secondary connection to Birchwood Crossing for improved emergency access. In 2015 an updated traffic study confirmed, yet again, a need for a secondary Birchwood Court connection prior to development of all commercial lots within Birchwood Crossing.

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In 1999 the City entered into a TIF agreement with Hubbell Realty Company to allow for reimbursement of a portion of the costs to make a road connection to NW 54th Avenue. Also, in 1999 Hubbell Realty Company purchased two properties north of Birchwood Crossing to allow for a northern road connection. Hubbell had attempted to purchase one additional property (the Robbins’ property) to allow for a direct connection with the intersection with Foxboro Road, but the Robbins desired to retain their property. In 2005 Hubbell made a new attempt to purchase the Robbins’ property, but the Robbins did not desire to sell their property. Discussions between Hubbell and the Robbins continued off and on through 2014. During the 2014 and 2015 timeframe the City of Johnston initiated discussions with the Robbins about purchasing right-of-way and easements from them to allow for the road extension of Birchwood Court with a direct alignment with Foxboro Road. These discursions ended in an impasse between the parties. In September 2015, the City Council passed a resolution declaring the preferred road alignment to be the one that connects directly with Foxboro Road. Thereafter, with negotiations for right-of-way and easement acquisition at an impasse with the Robbins, the City Council initiated proceedings for eminent domain for the purchase of easements and 150 square feet of fee title right-of-way. This action raised concerns from the affected property owners, from the residents in un-incorporated Polk County Webster Township, and residents in Green Meadows West. No action was taken on the eminent domain proceedings. Following the events of 2015, the City Council passed a resolution establishing the Southwest Area Road and Traffic Working Group (SWATWG). The purpose of this group was to study the issue of a secondary access to Birchwood Crossing and to provide feedback to the City Council. This group meet four times over a six-month period to review alternative alignments for Birchwood Court extension. The group considered five alternative road alignments during this six-month timeframe. Two of the options were considered by many in the group, but not all, the preferred road alignment options. The two preferred road alignment options included one alignment that connected with NW 54th Avenue at NW 77th Drive and a second alignment that connected directly with the intersection of NW 54th Avenue and Foxboro Road. In addition to reviewing the road alignment options, the SWATWG determined that there was a need for a “road diet” on NW 54th Avenue to improve pedestrian safety to and from Timber Ridge Elementary School. Concurrently with the work of the SWATWG, the city was conducting a traffic study of the area to determine changes to traffic patterns resulting from the relocation of the high school to the NW 100th Street campus. This traffic study was completed by Snyder & Associates. Further discussion on

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the findings of the traffic study can be found in the Traffic Access & Circulation section of this staff report. In addition to the traffic study, the City has contracted with Snyder & Associates to have road diet options prepared for further consideration at the recommendation of the SWATWG. Any road diet work would occur separate from the proposed developments. Finally, in 2018 Hubbell Realty Company and Wright Fields Inc. approached the city with a road alignment that had not previously been considered. This is the road alignment under consideration with the proposed developments. Details of this alignment will be discussed in detail in this staff report, but a brief history of the actions that have occurred prior to final consideration of the road alignment and the proposed developments. Snyder & Associated has had an opportunity to review the proposed road alignment to determine how it works into potential road diet options. Snyder & Associates made a recommendation for a shift in the road alignment approximately 50 feet to the west from the original proposal to better align with road diet options. Also, since this road alignment was not an option originally under consideration by the SWATWG there was one final meeting of the group to give feedback on this. The group indicated that the alignment appeared to meet many of the objectives that the group desired to achieve.

COMPREHENSIVE PLAN:

The Johnston 2030 Comprehensive Plan approved December 6, 2010, depicts the subject property as “Low Density Residential”. Low density residential (LDR) is defined by the comprehensive plan as, “housing with densities that generally range from two to five units per acre. Neighborhood areas classified as LDR will typically be predominantly single-family detached units with the potential for some doubles and other lower density attached housing products.” The proposed subdivision is consistent with the LDR future land use classification.

ZONING DISTRICT & BULK REGULATIONS:

The subject property is included in the proposed annexation for the Hubbell-Wright-JCSD properties. That annexation which is progressing separate from this development proposal includes the establishment of the following zoning districts for the subject property. R-1(75), Single Family Residential Zoning District: The R-1(75) zoning district will be the governing zoning district for the portion of the preliminary plat which is to become Wright Felds Plat 1. The following are the bulk regulations for the zoning district:

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Use Maximum Building Height

Minimum Lot Area

Minimum Lot Width

Front Yard Setback

Side Yard Setback

Rear Yard Setback

R-1(75), Single Family

Detached

35’ 9,500 SF 75’ 35’ 8’/17’ 35’

*Maximum density of 3.44 dwelling units per acre R-2, One and Two Family Residential Zoning District: The R-2 zoning district will be the governing zoning district for the portion of the preliminary plat which is to become Birchwood Crossing Plat 8. The following are the bulk regulations for the zoning district:

Use Maximum Building Height

Minimum Lot Area

Minimum Lot Width

Front Yard Setback

Side Yard Setback

Rear Yard Setback

R-2, Single Family

Detached

35’ 7,500 SF 60’ 30’ 7’/15’ 35’

R-2, Single

Family Bi-Attached

35’ 12,500 SF 100’ 30’ 10’/20’ 35’

*Single family detached maximum density of 4.35 dwelling units per acre **Single family bi-attached maximum density of 7.0 dwelling units per acre

As proposed, the site is in compliance with all bulk regulations for the zoning district.

BUFFERING: There is no buffer requirement between the proposed zoning district and the adjacent land uses and zoning districts.

TREE REMOVAL: Per City Ordinance, all trees 6-inch caliper diameter are automatically designated as protected trees. Protected tree status may be revoked by the City Council if tree removal is included and noted on the preliminary plat. The applicant has provided a tree survey of the subject property as part of the preliminary plat. They have split the property into separate areas for the purpose of inventorying trees and identifying the species and quantity within each to be removed and saved. There has also been supplied an exhibit of the areas for tree removal overlaid onto the proposed development and proposed grading to assist in explaining the need for the tree removal.

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TRAFFIC ACCESS & CIRCULATION:

This plat includes a portion of the extension of Birchwood Court from it’s current terminus on the southwest side of this site to its eventual connection to NW 54th Avenue. The remainder of this roadway extension is identified on the preliminary plat for Birchwood Crossing Plat 7 (PZ Case 18-24). This roadway will be a 29 foot wide roadway minor collector street section. This roadway will convey one lane of traffic in either direction as well as one lane for on-street parking. An access easement is proposed as part of Birchwood Crossing Plat 8 & Wright Fields Plat 1 Preliminary Plat for the school district to connect to the new road. Traffic for the area has been extensively reviewed in anticipation of this project. In 2016 the City Council established the Southwest Area Traffic Working Group to review a second access of Birchwood Court to NW 54th Avenue. Multiple roadway alignments were considered as part of this working group and the City consulted with Snyder & Associates to conduct detailed traffic studies of existing traffic conditions and future traffic conditions with a new roadway connection. This traffic study that was undertaken in 2016 collected data to understand existing traffic conditions and travel patterns for the NW 54th Avenue and Foxboro Road study area. Data that was collected included traffic counts, speed studies, peak hour field reviews, employee travel pattern surveys at key employers, and license plat survey for assessment of through traffic on Foxboro Road. The purpose of this study was to determine existing conditions for the area without any Birchwood Crossing connection to NW 54th Avenue and potential impacts from a new road connection. Foxboro Road traffic counts were collected as part of this traffic study. During the study period Foxboro Road had an average weekday traffic volume of slightly over 1,400 vehicles a day. Between 7:00 AM – 8:00 AM and 5:00 PM - 6:00 PM the peak volumes ranged from 80 to 100 vehicles per hour. The average speed of vehicles along Foxboro Road were 2-3 MPH faster than the speed limit with 85% of speeds collected being at or below 32 MPH. The data that was collected indicated that Foxboro Road did see approximately 1/3 of the traffic being through traffic during peak periods. The traffic study included an employer survey to determine traffic patterns of large employers or business clusters in the area. The survey indicated that through traffic was primarily not being generated by Birchwood Crossing Business employees or pioneer employees (John Deere Financial was asked to participate in study, but did not participate). The through traffic was primarily northbound in the AM period and southbound in the PM period. Finally, while Johnston High School students were not directly tallied during the data collection it was anecdotally observed that there were a number of cars likely representing high school students.

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The survey of employees at major employers indicated that with a Road connection of Birchwood Court to NW 54th Avenue that Foxboro Road may become a more attractive through traffic street for approximately 12% of respondents. Snyder & Associates believes that the actual number of drivers that would use this route for through traffic would be less due to turning movement difficulties drivers would experience at several locations. Additionally, travel time is nearly identical for a northbound driver traveling on NW 86th Street as on Foxboro Road. A southbound driver may experience a 30 second advantage over the NW 86th Street route. In addition to Foxboro Road the traffic study looked at NW 54th Avenue. This roadway has an average daily traffic volume of 5,150 vehicles per day. Peak hour traffic volumes ranged from 200 to 270 vehicles per hour per direction. The exception was eastbound traffic in the PM which had approximately 340 vehicles during the peak hour. The average speeds along NW 54th Avenue were 1-2 MPH faster than the speed limit with 85% or less of the speeds being at or below 41 MPH. The traffic study did provide focus on the intersection of NW 54th Avenue with the entrance to Timber Ridge Elementary School. The majority of traffic traveled through this intersection versus utilizing it for turning into the school facility. The study did note that pedestrians were primarily present at the intersection between 8:00 – 8:30 AM and at 3:30 PM. These pedestrians were primarily children walking from the Green Meadows West neighborhood to the school building. There is a crossing guard present at this intersection before and after school. The traffic study did note that when the eastbound right turn lane into Timber Ridge Elementary School on NW 54th Avenue was in use vehicles would queue approximately to the end of the lane taper. This queuing was primarily occurring between 8:25 – 8:35 AM and 3:30 – 3:40 PM. The queuing was largely a result of the crossing guard and pedestrians walking across NW 54th Avenue. The traffic study did note that traffic patterns have not significantly been altered as a result of the change in the bussing policy for the school district. This statement was supported by data from Snyder & Associates previous review of traffic circulation at the school in December of 2015. One final factor that was considered in the traffic study was the relocation of the Johnston High School to the NW 100th Street Campus and how that impacted through traffic on Foxboro Road. Initially the traffic study had to rely on modeling to project the impact of the move to draw conclusions, but we now have the benefit of the switch being made and follow-up data being collected to help draw conclusions. Between 2016 and 2017 the data shows a decrease in through traffic counts by approximately 4% of total vehicles in

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the AM peak period and by approximately 1% in the PM peak period. Snyder & Associates believes that the relocation of the Johnston High School has influenced the traffic volumes and patterns through Foxboro road specifically as it relates to AM and PM school peak hours. As previously noted, the Southwest Area Traffic Working Group explored a number of potential roadway alignments for a secondary access or Birchwood Court. The group was provided the traffic study that was summarized in this section to consider when reviewing the alternatives. The proposed alignment under consideration with this development proposal was not initially a proposed route for the new roadway, but this alignment has been before the working group for their review. No concerns were raised regarding the alignment.

SIDEWALKS:

Sidewalks are required throughout the site and will be constructed with each home on both sides of each proposed new street. Staff is working with the applicant to identify appropriate locations for mid-block pedestrian crossing that will additionally serve as traffic calming measures. Potential locations include the southern extent of the subject property adjacent to the commercial development and at the school access easement. The final locations and details of traffic calming measures and pedestrian crossings will be included on the construction plans to be approved by the City Council. There was a request from David Johnson, Planning and Zoning Commissioner, to note that there was discussion regarding whether or not a trail should be installed along the west/north side of the new street extension. Discussion occurred relating to whether or not a trail better accommodated the goal of pedestrian connectivity throughout Johnston by promoting alternative means of transportation. Ultimately the Planning and Zoning Commission didn’t add a recommendation to add trail to the project, but just asked for special note of this discussion.

WATER / SANITARY SEWER:

Sanitary Sewer: An eight-inch public gravity sanitary sewer will be extended through this plat from the northeast to the southwest. Water: An eight-inch public water main is being extended through this site to generally follow the same alignment as the sanitary sewer. This water main will connect with the existing water main at the terminus of Birchwood Court as well as to the existing water main along NW 54th Avenue. See PZ Case 18-24 for details on water and sanitary sewer on the proposed south adjacent commercial development.

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DRAINAGE / STORM SEWER:

Stormwater will be captured in public storm sewer within the public right-of-way. The majority of the roadway extension within this preliminary plat will be routed to a proposed detention basin on Lot 1. An area of the northeastern portion of the site will drain northward to be detained in a detention basin to be located within the boundaries of the proposed north adjacent residential development (PZ case 18-25).

FLOOD PLAIN: The property is not located within a FEMA designated floodplain.

PARKLAND DEDICATION:

Chapter 180.43 of the City of Johnston code of ordinances requires dedication of 5 acres of public parkland for each 1,000 residents added to the community. Parkland dedication will be required at the time of final plat. The Parks Department has commented that they would recommend the applicant provide an equal value alternative of cash in lieu of land dedication at the time of final plat. The property owners have indicated that the preliminary plat will be final platted as two separate final plats to be named Birchwood Crossing Plat 8 and Wright Fields Plat 1. For each of these two future final plats the parkland dedication requirement is calculated as follows:

Birchwood Crossing Plat 8 Parkland Dedication Requirement

11 Lots X 2.980 Person Per Unit X 0.005 Acres Per Person = 0.1639 acres

Birchwood Crossing Plat 8 Equal Value Alternative

0.1639 acres required parkland X $28,000 per acre = $4,589.20

Wright Fields Plat 1 Parkland Dedication Requirement

14 Lots X 2.980 Person Per Unit X 0.005 Acres Per Person = 0.2086 acres

Birchwood Crossing Plat 8 Equal Value Alternative

0.2086 acres required parkland X $28,000 per acre = $5,840.80

IMPROVEMENTS TO ADJACENT ROADWAYS:

NW 54th Avenue between NW 78th Avenue to the west of this site and 72nd Street to the east of this site is an improved roadway which is owned and maintained by the City of Johnston. The north half of the right-of-way is currently within the City of Johnston corporate limits while the south half is currently within un-incorporated Polk County, but still owned by the City of Johnston. The city has been considering improvements to this section of roadway in a manner commonly referred to as a “road diet”. This type of roadway improvement involves removing pavement and narrowing lane widths. The

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goal of these improvements would be to improve pedestrian safety and access between the north side of the road (Lew Clarkson Park & Green meadows West) and the south side of the road (Timber Ridge Elementary School). This project has come out of the work that the Southwest Area Working Group When the road alignment for the proposed new street was first proposed staff provided the alignment to Snyder & Associates. Snyder & Associates was able to review this alignment with the conceptual designs for a road diet and recommended that the alignment be shifted approximately 50 feet west from their original proposal. The applicant has responded by accommodating this recommendation and has shifted the road alignment approximately 50 feet west. This shifted alignment would allow for a westbound left turn lane into the proposed road if desired in the future.

BEAVER CREEK SANITARY SEWER CONNECTION DISTRICT FEE:

The subject property is located within the Beaver Creek Sanitary Sewer Connection District. Payment of the applicable fee is due at the time of final plat approval. The property owners have indicated that the preliminary plat will be final platted as two separate final plats to be named Birchwood Crossing Plat 8 and Wright Fields Plat 1. As such, the following would be the applicable fee for each final plat:

Birchwood Plat 8 $909.70 per developed acre X 4.09 acres developed = $3,720.64

Wright Fields Plat 1

$909.70 per developed acre X 10.092 acres developed = $9,180.70

PUBLIC NOTICE AND ADJACENT NEIGHBOR COMMENTS:

Notice has been sent to properties adjacent to the subject property, and staff has posted a proposed development notice to the city’s website. A copy of the mailing notice and associated mailing list is attached. As of publication of this report no public comments have been received.

CONSULTANT COMMENTS:

The preliminary plat has been reviewed by our consulting engineer, Foth Infrastructure and Environment, LLC. Foth has issued review comments in a letter dated August 21st, 2018. Staff recommends a condition for approval to revise the Preliminary Plat to address all comments from Foth’s August 21st, 2018 review letter.

- Created by City of Johnston Department of Community Development6221 Merle Hay Road, P.O. Box 410, Johnston, IA, 50131-0410 (515)278-2344 Fax:(515)278-2033

0 410 820 1,230 1,640205Feet

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Subject Property

VICINITY MAP

1 inch = 3,333 feet

NW 54TH AVENUE

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PZ CASE 18-25BIRCHWOOD CROSSING PLAT 8 & WRIGHT FIELDS PLAT 1

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PP2

Part of Parcel E of that Plat of Survey of part of the West 30 acres of the Northeast Quarter of theNortheast Quarter of Section 14, Township 79 North, Range 25 West of the 5th P.M. as filed in Book 9734at Page 525 in the Office of the Polk County Recorder, and all of Parcel B of that Plat of Survey of Part ofLot 1 in Schultz Acres, an Official Plat, and part of the Northwest Quarter of the Northeast Quarter ofSection 14, Township 79 North, Range 25 West of the 5th P.M. as filed in Book 8480 at Page 237 in theOffice of the Polk County Recorder, all in the City of Johnston, Polk County, Iowa, and being moreparticularly described as follows:

Beginning at the Northwest corner of said Parcel E, being the Northwest corner of the Northeast Quarterof the Northeast Quarter of said Section 14; thenceSouth 89°(degrees) 47'(minutes) 20”(seconds) East (previously recorded asSouth 89°24'59” East), 211.02 feet along the North line of said Parcel E to the Northwest corner of thatpart of Parcel E conveyed to Polk County by that Warranty Deed filed in Book 12565 at Page 914 in theOffice of the Polk County, Recorder; thence South 00°12'40” West, 33.00 feet (previously recorded asNorth 00°10'08” East, 33.00 feet along the West line of said conveyance to Polk County; thenceSouth 85°02'17” East, 205.26 feet (previously recorded as North 85°04'49” West, 205.26 feet) along theSouth line of said conveyance to Polk County; thence South 00°07'20” East, 50.00 feet (previouslyrecorded as North 00°09'52” West, 50.00 feet) along the South line of said conveyance to PolkCounty; thence South 89°47'20” East, 75.00 feet (previously recorded asNorth 89°49'52” West, 75.00 feet) along the South line of said conveyance to Polk County; thenceNorth 45°12'40” East, 70.71 feet (previously recorded as South 45°10'08” West, 70.71 feet) along theSouth line of said conveyance to Polk County; thence South 89°47'21” East, 89.01 feet (previouslyrecorded as North 89°49'53” West, 89.01 feet) along the South line of said conveyance to Polk County tothe East line of said Parcel E; thence South 00°02'21” East (previously recorded asSouth 00°19'30” West), 404.86 feet along the East line of said Parcel E to the Southeast corner of saidParcel E; thence North 89°44'45” West, 185.38 feet (previously recorded asNorth 89°24'59” West, 185.46 feet) along the South line of said Parcel E; thenceSouth 36°24'17” West, 326.22 feet (previously recorded as South 36°44'03” West, 326.37 feet) along theSouth line of said Parcel E; thence North 76°27'31” West, 257.73 feet (previously recorded asNorth 75°59'03” West, 257.81 feet) along the South line of said Parcel E to the East line of said ParcelB; thence South 00°02'09” East (previously recorded as South 00°34'00” East), 660.73 feet along the Eastline of said Parcel B to the Southeast corner of said Parcel B; thenceSouth 89°58'37” West, 239.21 feet (previously recorded as South 89°26'14” West, 239.03 feet) along theSouth line of said Parcel B; thence North 00°13'41” West, 993.97 feet (previously recorded asNorth 00°34'00” West, 991.80 feet) along the West line of said Parcel B; thenceSouth 89°58'14” West, 219.37 feet (previously recorded as South 89°39'55” West, 233.28 feet) along theSouth line of said Parcel B; thence North 00°33'45” East, 75.00 feet (previously recorded asNorth 00°08'20” West, 75.00 feet) along the West line of said Parcel B; thenceSouth 89°35'10” East, 435.98 feet (previously recorded as North 89°39'55” East, 446.75 feet) along theNorth line of said Parcel B; thence North 00°04'53” East, 213.82 feet (previously recorded asNorth 00°34'00” West, 214.18 feet) along the West line of said Parcel B; thenceSouth 89°44'41” East, 24.73 feet (previously recorded as North 89°39'55” East, 25.00 feet) along the Northline of said Parcel B to the Northeast corner of said Parcel B, a point on the West line of said ParcelE; thence North 00°02'09” West, 40.00 feet along the West line of said Parcel E to the point of beginning.

Containing 14.34 acres.

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8191 Birchwood Court, Suite L Johnston, IA 50131 (515) 254-1393 Fax: (515) 254-1642

August 21, 2018

City of Johnston, P.O. Box 410

6221 Merle Hay Road

Johnston, IA 50131

RE: Birchwood Crossings Plat 8 and Wright Fields Preliminary Plat

Development Review 2

Case No. PZ 18-25

Foth Infrastructure and Environment, LLC has completed a review of the Preliminary Plat submittal

received by the City on August 14, 2018 for the above referenced project. Based on our review, the

following comments are offered:

SWMP

1. Update the proposed model outlet structure to reflect all weirs and orifices that are present in the

structure. The outlet model should include weirs/orifices necessary for water quality.

2. Provide channel calculations to verify the velocity of the channels.

PP1

3. The proposed sanitary sewer on the north side of the basin is labeled as a 30’ storm sewer easement.

Revise label.

4. Provide note stating Lot C shall be dedicated as right of way to the City of Johnston.

PP2

5. The water quality elevation is labeled as 829.03 on sheet PP2, but is labeled as 828.54 in the SWMP.

6. Does the proposed detention basin have to encroach on Lot 13, or can the northwest corner of Lot 14

be regraded to avoid encroachment?

7. The existing channel’s south bank appears unstable, what bank stabilization is proposed to protect the

public storm sewer?

PP4

8. Label all removals.

PP5

9. The storm sewer and the sanitary sewer shall not cross unless for a perpendicular crossing.

Please contact me at 515.251.2564 if you have questions or comments.

Sincerely,

Foth Infrastructure & Environment, LLC

Joshua C. DeBower, P.E. Blair Spotts Lead Civil Engineer Civil Engineer

PZ 18-25

PZ Mailing List

RECIPIENT MAILING ADDRESS CITY, STATE, ZIP CODE CITY OF URBANDALE 3600 86TH ST URBANDALE IA 50322-4057

ROBERT T WOODSMALL 7680 NW 54TH AVE JOHNSTON IA 50131-1783 HUBBELL REALTY CO 6900 WESTOWN PKWY WEST DES MOINES IA 50266-2520

JO ANN ROBBINS (TRUSTEE) 7420 NW 54TH AVE JOHNSTON IA 50131-1783 POLK COUNTY 5885 NE 14TH ST DES MOINES IA 50313-1202

JOHNSTON COMM SCH DIST PO BOX 10 JOHNSTON IA 50131-0010 WRIGHT FIELDS INC PO BOX 2577 PINELLAS PARK FL 33780-2577

DOUGLAS APPLEGATE 5325 NW 78TH CT JOHNSTON IA 50131-1707 RANDALL D CLAUSEN 7754 NW 54TH AVE JOHNSTON IA 50131-1783

SHIRLEY BLAIR 605 SW MAPLE ST ANKENY IA 50023-2920 KNAPP PROPERTIES 5000 WESTOWN PKWY STE 400 WEST DES MOINES IA 50266-5921

KENNETH D LEE 7608 ASHLEY CIR JOHNSTON IA 50131-8789 JUDITH VOGEL 7500 ASHLEY DR JOHNSTON IA 50131-8795 LYNN SCHULTZ 7488 ASHLEY DR JOHNSTON IA 50131-8798 RANDI BLACK 7600 ASHLEY CIR JOHNSTON IA 50131-8789

BENJAMIN A ZENTI 7524 ASHLEY DR JOHNSTON IA 50131-8795 PETER J DEACON 7453 BARNSLEY DR JOHNSTON IA 50131-8783

HANH DINH 7618 ASHLEY CIR JOHNSTON IA 50131-8789 KEITH NICOLET 7512 ASHLEY DR JOHNSTON IA 50131-8795

ANALIZA P ALVES 7476 ASHLEY DR JOHNSTON IA 50131-8798

Notice of Public Meeting

August 24th, 2018

The Johnston Planning and Zoning Commission will hold a public meeting at 7:00 p.m. on Monday, August 27th, 2018 and the Johnston City Council will hold a public meeting at 7:00 p.m. on Tuesday, September 4th, 2018. Both meetings will be held in the council chambers at Johnston City hall, 6221 Merle Hay Road to consider the following item:

PZ Case 18-25; Birchwood Crossing Plat 8 & Wright Fields Plat 1 Preliminary Plat

Hubbell Realty Company has submitted a preliminary plat for the subdivision of 14.34 acres into 25 lots for single family homes, 2 unbuildable outlots, and the extension of Birchwood Court to the east and north. The subject property is located south of NW 54th Avenue and west of Timber Ridge Elementary School.

If you have questions or comments on the above described action, please contact the city staff person listed at the bottom of this card, or attend the meeting at the above listed date and time. Additional information is available under the “proposed development” section of the city’s website: http://www.cityofjohnston.com/proposeddevelopment.

Clayton Ender, AICP Candidate, City Planner Johnston City Hall, 6221 Merle Hay Road, Johnston, IA, 50131

Phone: 515-727-7763; Email: cender@cityofjohnston.com