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Home My WebLink About2019-08-05-J01I 5-Way Intersection_TSIP ApplicationJ1I THE CITY OF WAUKEE, IOWA RESOLUTION 19- AUTHORIZING THE CITY OF WAUKEE, IOWA, TO SUBMIT AN APPLICATION TO THE IOWA DEPARTMENT OF TRANSPORTATION TRAFFIC SAFETY IMPROVEMENT PROGRAM FOR FUNDING FOR THE WARRIOR LANE, ASHWORTH DRIVE AND NORTHVIEW DRIVE INTERSECTION PROJECT IN THE NAME AND BY THE AUTHORITY OF THE CITY OF WAUKEE, IOWA WHEREAS, the City of Waukee, Iowa is a duly organized municipality within Dallas County; AND, WHEREAS, the Iowa Department of Transportation has established the Traffic Safety Improvement Program and provides funding for locations where vehicular safety is a concern and documented; AND, WHEREAS, the intersection of Warrior Lane, Ashworth Drive and Northview Drive has been identified as a location where vehicular safety and traffic flow could be improved and funded by Traffic Safety Improvement Program; AND, WHEREAS, the City of Waukee has determined that planned improvements to this intersection will decrease vehicle delays and improve overall safety. NOW THEREFORE BE IT RESOLVED by the City of Waukee City Council in session this 5th day of August, 2019, that: 1.City Council supports and approves the application for Traffic Safety Improvement Program funding. 2.The City Council hereby commits the additional City funds necessary for construction of the project beyond and Traffic Safety Improvement Program funding. 3.The City Council hereby commits to accepting and maintaining these improvements. 4.The Mayor hereby authorized to execute the application on behalf of the City. ____________________________ William F. Peard, Mayor Attest: ___________________________________ Rebecca D. Schuett, City Clerk RESULTS OF VOTE: AYE NAY ABSENT ABSTAIN Anna Bergman R. Charles Bottenberg Courtney Clarke Shelly Hughes Larry R. Lyon Traffic Safety Improvement Program Application Warrior Lane, Ashworth Drive, & Northview Drive Intersection Waukee, Iowa July 31, 2019 Prepared by: 222 Third Avenue SE, Suite 300 Cedar Rapids, IA 52406 (319) 364-0027 4125 Westown Parkway Suite 100 West Des Moines, IA 50266 515-223-8104 Rev. 5/18 Application for SITE-SPECIFIC TSIP FUNDS GENERAL INFORMATION DATE: 7/19/2019 Location / Title of Project City of Waukee - Warrior Lane Improvements Applicant City of Waukee, IA Contact Person Rudy Koester Title Public Works Director Complete Mailing Address 805 University Ave Waukee, IA 50263 Phone 515-978-7920 E-Mail rkoester@waukee.org (Area Code) If more than one highway authority is involved in this project, please indicate and fill in the information below (use additional sheets if necessary). Co-Applicant(s) Contact Person Title Complete Mailing Address Phone E-Mail (Area Code) PLEASE COMPLETE THE FOLLOWING PROJECT INFORMATION: Funding Amount Total Safety Cost $ 1,727,070 Total Project Cost $ 1,727,070 Safety Funds Requested $ 500,000 Does this project appear on a Safety Improvement Candidate List or is there a safety study recommendation for this project? Yes – Explain: A traffic study was prepared for Warrior Lane corridor and this intersection, which recommended the intersection conversion to a single-lane roundabout_ No Rev. 5/18 APPLICATION CERTIFICATION FOR PUBLIC AGENCY To the best of my knowledge and belief, all information included in this application is true and accurate, including the commitment of all physical and financial resources. This application has been duly authorized by the participating public agency(ies). I understand the attached resolution(s), where applicable, binds the participating public agency(ies) to assume responsibility for any additional funds, if required, to complete the project. In addition, the participating public agency(ies) agrees to maintain any new or improved public streets or roadways for a minimum of five years. I understand that, although this information is sufficient to secure a commitment of funds, a firm contract between the applicant and the Department of Transportation is required prior to the authorization of funds. Representing the City of Waukee Signed: Signature Date Signed Printed Name Attest: Signature Date Signed Printed Name B. Narrative Background The City of Waukee is planning to make improvements to the intersection of Warrior Lane, Ashworth Drive, and Northview Drive, which is an existing five-leg all-way stop controlled intersection. This intersection is on routes to the following schools:  Waukee Middle School  Waukee High School  Prairieview School Additionally, the intersection is on the route to the Waukee Stadium and the Waukee Public Library. The improvements are planned due to the existing intersection control not being able to handle current traffic. The issues the City and school district are facing, which will increase with future traffic growth are:  Traffic congestion on Warrior Lane o Long queues of vehicles form along Warrior Lane during the school drop-off and pick-up peak hours o The queues extend from Waukee Middle School south access driveway to Ashworth Drive  Congestion on Ashworth Drive o Long queues occur along Ashworth Drive although they are shorter than the queues along Warrior Drive  Access to Driveways and Road along Warrior Lane o Access to/from driveways between Waukee Middle School south access driveway and Ashworth Drive are severely impacted during the school drop-off and pick-up peak hours The main problem was identified as being the 5-leg intersection at Warrior Lane, Ashworth Drive, and Northview Drive. All-way stop intersections are a good option for control when traffic volumes at all approaches are comparable, which does not occur at this intersection. During the drop-off peak hour, the southbound approach has the highest demand followed by the southeast-bound approach, while the demand at the remaining approaches is almost negligible. During the drop-off peak hour, the northbound approach has the highest demand followed by the northwest-bound approach while the demand at the remaining approaches is almost negligible. The demand at the eastbound approach is low on both peak hours. All-way stop-control treats all approaches the same way, not prioritizing approaches with the higher-traffic volumes. The outcome is that queues form on the approaches with the highest traffic volumes. B. Narrative The intersecting roadways are classified as follows: Warrior Lane is a minor arterial, Ashworth Drive is a major collector, and Northview Drive is a minor collector. All three roadways have a posted speed limit of 25 mph, with single lane (shared left/through/right) approaches at the intersection. Northview Drive is the roadway that terminates (fifth leg) at the intersection. According to the Iowa DOT, 2016 AADT Map, the AADTs along Warrior Lane, Ashworth Drive, and Northview Drive within the project limits are 3,290, 4,670 and 1,580 vehicles per day (vpd), respectively. The intersection is expected to see growth and the Des Moines Area Metropolitan Planning Organization is estimating by 2040 AADTs of 4,920 and 7,364 for Warrior Lane and Ashworth Drive, respectively. The MPO does not show projections for Northview Drive; however, considering the same average growth rate for the project area, the AADT will be 2,365 by 2040. Land uses immediately surrounding the study intersection include institutional (Waukee Middle School, Immanuel Lutheran Church, Saint Boniface Catholic Church, and the Waukee Public Library), recreational (Centennial Park), agricultural, undeveloped, and residential land uses. The proximity of the Waukee Middle School in particular compounds vehicle congestion during the AM (7:00 – 8:00 AM), school dismissal (3:00 – 4:00 PM), and PM (5:00 – 6:00 PM) peak hours. Existing and proposed lane configuration and control are presented in Figure 1. Crash History The Iowa Crash Analysis Tool (ICAT) website administered by the Iowa DOT was used to collect available crash data at the study intersections for the ten-year period between January 1, 2009 and December 31, 2018. The intersection had a crash rate lower than the statewide average for intersections with a similar daily volume of entering vehicles. Rear-end and broadside were the highest frequency of crash types, with failure to yield right-of-way, following too closely, and ran stop signs as the most frequent identified major causes. Over the analyzed time period the intersection experienced 0.20 injuries per crash. Refer to Section I for crash history summaries. B. Narrative Figure 1 Existing & Proposed Lane Configuration & Control Widen Figure to Include Middle School Proposed Improvements & Conclusion Even though the crash rate is below statewide average, and no fatal or incapacitating crashes have occurred in the last ten years, the improvements represent a proactive action to avoid an increase and actually reduce crash frequency, rate and severity. Additionally, in the ten-year study period, a total of 15 crashes occurred at this intersection. However, five crashes occurred in the first five years (2009-2013) and 12 crashes occurred in the last five years (2014-2018), which reveals a sharp trend in crash increase (exponential curve trend). Following this trend, 48 crashes would be expected in the next five years (2019-2023). Intersection improvements proposed include moving Northview Drive’s intersection with Ashworth Drive sufficiently far to the west to satisfy SUDAS specifications, and converting the intersection into a four-leg roundabout. These improvements are anticipated to decrease vehicle delay and Existing Lane Configuration & Control Proposed Lane Configuration & Control Northview Dr Waukee Middle School Warrior Ln B. Narrative improve safety at the intersection. A single-lane roundabout is anticipated to provide an acceptable LOS (LOS D or better) through projected 2040 conditions, whereas the existing lane configuration and control is not. The Highway Safety Manual Clearinghouse website identifies an approximate expected crash frequency reduction of 88% due to the conversion of stop-controlled intersection to a single-lane roundabout. It should also be noted, MUTCD Warrant 2 – Four hour Vehicular Volume traffic control signal warrant threshold is anticipated to be met under projected 2025 conditions. Other Improvements to the Warrior Lane Corridor. The Warrior Lane corridor is also planned for other improvements outside of the roundabout planned to replace the 5-way stop intersection as discussed above. The other improvements consist of a three-lane roadway section with a two-way left turn lane. The City and School district have witnessed motorists make unsafe passing movements on the two-lane road where turning movements have stopped traffic. The two-way left turn lane provided by the three lane section will separate many of those turning movements from through traffic helping to alleviate the dangerous passing movements. Other considerations include modifications to the crosswalk between the middle school on the east side of Warrior Lane and the Public Library on the west side. The existing crosswalk is a mid-block crossing with a rectangular rapid flashing beacon. The final solution to the cross walk is still under discussion, however the goal is to remove conflict points, make the crossing simple and intuitive for pedestrians and students, and conform to driver expectancy. One potential option moves the crosswalk to an intersection where a crossing guard is deployed to help move students across Warrior Lane during school dismissal. These other improvements are not part of the Traffic Safety Funding Application, nor are they included within the cost opinion provided herein. However, they are a part of the larger story of safety within this corridor that will become a reality with help from the Traffic Safety Improvement Program. C. COST OPINION ITEM NO.ITEM UNIT QUANTITY UNIT PRICE TOTAL COST 1 MOBILIZATION LS 1.0 50,000.00$ 50,000.00$ 2 CONSTRUCTION STAKING LS 1.0 15,000.00$ 15,000.00$ 3 CONCRETE WASHOUT LS 1.0 3,000.00$ 3,000.00$ SUBTOTAL 68,000.00$ 4 TOPSOIL STRIP, SALVAGE, & RE-SPREAD CY 2400.0 12.00$ 28,800.00$ 5 EXCAVATION, CLASS 10 CY 12000.0 8.00$ 96,000.00$ 6 EXCAVATION, CLASS 10, WASTE CY 9000.0 15.00$ 135,000.00$ 7 SUBGRADE PREPARATION, 12 IN.SY 7575.0 5.00$ 37,875.00$ 8 MODIFIED SUBBASE, 6 IN CY 1525.0 40.00$ 61,000.00$ 9 REMOVAL OF STORM SEWER LF 900.0 35.00$ 31,500.00$ 10 REMOVAL OF STORM SEWER STRUCTURE EA 4.0 500.00$ 2,000.00$ 11 PCC PAVING REMOVAL AND DISPOSAL SY 4375.0 10.00$ 43,750.00$ 12 PCC SIDEWALK REMOVAL AND DISPOSAL SY 1150.0 10.00$ 11,500.00$ 13 PCC DRIVEWAY REMOVAL AND DISPOSAL SY 300.0 10.00$ 3,000.00$ SUBTOTAL 450,425.00$ 14 SEWER, STORM, 15" DIA. RCP, CLASS III LF 125.0 80.00$ 10,000.00$ 15 SEWER, STORM, 18" DIA. RCP, CLASS III LF 1300.0 90.00$ 117,000.00$ 16 SEWER, STORM, 24" DIA. RCP, CLASS III LF 175.0 100.00$ 17,500.00$ 17 SEWER, STORM, 30" DIA. RCP, CLASS III LF 225.0 120.00$ 27,000.00$ 18 PIPE APRON, 18"EA 5.0 3,500.00$ 17,500.00$ 19 SUBDRAIN & FITTINGS, 6' DIA. PVC (TYPE I)LF 2800.0 15.00$ 42,000.00$ 20 SUBDRAIN, CONNECTION TO INTAKES OR STORM SEWER EA 24.0 250.00$ 6,000.00$ 21 SUBDRAIN, RISER & CLEANOUT ASSEMBLY (TYPE I)EA 6.0 1,000.00$ 6,000.00$ SUBTOTAL 243,000.00$ 22 MANHOLE ADJUSTMENT, MAJOR EA 1.0 3,500.00$ 3,500.00$ 23 MANHOLE, STORM SEWER, SW-401 48 IN.EA 3.0 5,000.00$ 15,000.00$ 24 INTAKE, SW-505 EA 3.0 5,000.00$ 15,000.00$ 25 INTAKE, SW-506 EA 9.0 7,000.00$ 63,000.00$ SUBTOTAL 96,500.00$ 26 9" PCC PAVEMENT SY 5350.0 65.00$ 347,750.00$ 27 9" PCC PAVEMENT, TRUCK APRON SY 600.0 70.00$ 42,000.00$ 28 6" PCC RECREATIONAL TRAIL, 10'SY 1200.0 45.00$ 54,000.00$ 29 5" PCC SIDEWALK, 5'SY 225.0 50.00$ 11,250.00$ 30 SPECIAL SUBGRADE PREPARATION FOR SHARED USE PATH SY 1525.0 4.00$ 6,100.00$ 31 DETECTABLE WARNINGS SF 320.0 45.00$ 14,400.00$ SUBTOTAL 475,500.00$ 32 TRAFFIC CONTROL LS 1.0 30,000.00$ 30,000.00$ 33 PERMANENT SIGNING LS 1.0 9,000.00$ 9,000.00$ 34 PERMANENT PAVEMENT MARKINGS, PAINT LS 1.0 9,000.00$ 9,000.00$ 35 PERMANENT PAVEMENT MARKINGS, SYMBOLS EA 2.0 400.00$ 800.00$ SUBTOTAL 48,800.00$ Warrior Lane / Ashworth Drive Roundabout City of Waukee Order of Magnitude Opinion of Probable Project Costs July 23, 2019 GENERAL CONDITIONS STRUCTURES FOR SANITARY & STORM SEWER TRAFFIC CONTROL, SIGNALS & LIGHTING EARTHWORK & DEMOLITION SEWERS & DRAINS STREETS & RELATED WORK 36 SEED, PERMANENT AC 3.0 4,000.00$ 12,000.00$ 37 SEED, TEMPORARY AC 6.0 2,500.00$ 15,000.00$ 38 EROSION CONTROL LS 1.0 30,000.00$ 30,000.00$ SUBTOTAL 57,000.00$ 1,439,225.00$ $287,845 TOTAL CONSTRUCTION COSTS (2019):$1,727,070.00 **TOTAL PROJECT COSTS AND CONSTRUCTION COSTS PROVIDED HEREIN ARE MADE ON THE BASIS OF ENGINEER'S EXPERIENCE AND QUALIFICATIONS AND REPRESENT THE ENGINEER'S BEST JUDGMENT. HOWEVER, THE ENGINEER CANNOT AND DOES NOT GUARANTEE THAT BIDS OR ACTUAL TOTAL PROJECT OR CONSTRUCTION COSTS WILL NOT VARY FROM THE ESTIMATE OF PROBABLE CONSTRUCTION COST. THIS ESTIMATE IS INTENDED TO ASSIST IN BUDGETARY ASSESSMENT AND DOES NOT GUARANTEE THAT ACTUAL PROJECT COSTS WILL NOT EXCEED OR BE LOWER THAN THE AMOUNTS STATED IN THIS ESTIMATE. CONSTRUCTION SUBTOTAL UNDEVELOPED DESIGN CONTINGENCY (20%) SITE WORK & LANDSCAPING D. Timeline Schedule Improvements to the intersection of Warrior Lane, Ashworth Drive and Northview Drive are to be funded through Traffic Safety Improvement Fund, other grant funds, and local matching funds. The schedule proposed for the safety improvements is as follows:  July 2019 – Submit for 2021 TSIP Funds  December 2019 – TSIP Funds are awarded  January 2020 – August 2020 – Proceed with design of improvements  July 2020 – TSIP funds are available for the intersection improvements  Winter 2020/2021 – Let intersection project  May 2021 – Construction begins  August 2021 – Construction complete for single-lane roundabout E. Project Location City of Waukee PROJECT LOCATION PROJECT LOCATION F. Site Photos PHOTO NUMBER 1 DESCRIPTION: Aerial Image –Intersection of Warrior, Ashworth, & Northview PHOTO NUMBER 2 DESCRIPTION: SB Warrior Lane NORTHVIEW DRIVE WARRIOR LANE F. Site Photos PHOTO NUMBER 3 DESCRIPTION: WB Ashworth Drive PHOTO NUMBER 4 DESCRIPTION: NB Warrior Lane F. Site Photos PHOTO NUMBER 5 DESCRIPTION: EB Northview Drive PHOTO NUMBER 6 DESCRIPTION: EB Ashworth Drive WARRIOR LANE NORTHVIEW DRIVEASHWORTH DRIVEBEL AIRE DRIVESE MARSHALL DRIVE0 SCALE IN FEET 50 100 PHASE 1 WARRIOR LANE IMPROVEMENTS JULY 2019 PRELIMINARY CONCEPT G. Plan View H. Aerial Photograph City of Waukee PROJECT LOCATION WAUKEE MIDDLE SCHOOL WAUKEE PUBLIC LIBRARY WAUKEE STADIUM CENTENNIAL PARK I. Crash History I. Crash History I. Crash History I. Crash History I. Crash History I. Crash History I. Crash History J. Traffic Counts 2016 Iowa DOT AADT Map Road Name 2016 Iowa DOT AADT 2019 Shive-Hattery ADT Warrior Lane 3,290 3,460 Ashworth Drive 4,670 4,944 Northview Drive 1,580 1,662 J. Traffic Counts 2020/2040 MPO AADT Map Note: 2020 in red; 2040 in blue Road Name 2040 MPO AADT 2040 Shive-Hattery ADT Warrior Lane 4,920 Ashworth Drive 7,364 Northview Drive 2,365 J. Traffic Counts Intersection or Spot Benefit / Cost Safety Analysis Rev. 5/18 Iowa DOT Office of Traffic & Safety County: Prepared by: Date Prepared: Jul 31, 2019 Intersection: Improvement Proposed Improvement(s): #########Estimated Improvement Cost, EC 20 Estimated Service Life, years, Y 3,000$ Other Annual Cost (after initial year), AC 88 Crash Reduction Factor (integer), CRF 40,771$ Present Value Other Annual Costs, OC 4.0%Discount Rate (time value of $), INT Present Value Cost, COST = EC + OC Traffic Volume Data Source:2019 Date of traffic count Daily Entering Vehicles by Approach (or AADT / 2) 4,140 Current Annual Entering Veh., AEV = DEV * 365 1,690 3,800 veh / day, Final Year DEV, FDEV 1,230 MEV, Total Million Entering Veh. Over life of Project, TMEV 0.4%Projected Traffic Growth (0%-10%), G 10,860 Current Daily Entering Vehicles, DEV Crash Data 2009 First full year --> 2018 Last full year 10.0 years, Time Period, T 0 Additional months 0 Fatal Crashes 0 Fatalities @ $4,500,000 -$ 0 Major Injuries @ $325,000 -$ 3 Injury Crashes 0 Minor Injuries @ $65,000 -$ 3 Possible Injuries @ $35,000 105,000$ 12 Property Damage Only (assumed cost per crash) $7,400 111,000$ -OR- enter all Property Costs of all crashes: 15 Total Crashes, TA Total $ Loss, LOSS 216,000$ 1.50 Current Crashes / Year, AA = TA / T Crashes / MEV, Crash Rate, CR 14,400$ Cost per Crash, AVC = LOSS / TA CR = TA x 10^6 / (DEV x 365 x T) 31.2 Total Expected Crashes, TECR = CR x TMEV Present Value of Avoided 1.32 Crashes Avoided First Year AAR = AA x CRF / 100 Crashes, BENEFIT 19,008$ Crash Costs Avoided in First Year, AAR x AVC 27.4 Total Avoided Crashes, TECR x CRF/ 100 Benefit / Cost Ratio Benefit : Cost = $266,999 :=0.15 : 1 266,999$ $1,767,841 0.38 3,963,900 82.36 Des Moines Area Metropolitan Planning Organzation 11,763 Convert to a single-lane roundabout Existing 5-leg intersection is stop-controlled Warriror Lane, Ashworth Drive and Northview Drive Dallas Shive-Hattery 1,767,841$ ( )       + -=YINTINT ACOC 1 11 106 1 11        +- - = YG G AEVTMEV ( )         + +- - ´= Y INT G GINT AARAVCBEN 1 11. $1,727,070