Timberwood Drive Trail Stabilization

Project Map
Click here to view project map (PDF)

Construction Plans
Click here to view the plan (PDF) 

Estimated Cost
$165,000 (covering engineering and construction)

Project Status
On December 4, 2017, the Johnston City Council awarded the construction contract for the project to TK Concrete, Inc. from Pella, Iowa. TK Concrete will be responsible for completing the project. Construction is anticipated to begin the mid-February, with a targeted completion date of June 30, 2018.  However, the bulk of the major construction activity should be completed in 5-6 weeks with surface restoration and trail replacement being completed in the spring.  Please note the trail in this area will be closed from NW 94th Street to Newgate Drive throughout the duration of the project.

Schedule
Design Engineering: February – December 2017
Project Bidding: December 2017
Construction: February – June 2018

Engineer
Joshua C. DeBower, P.E.
Foth Infrastructure & Environment, LLC
8191 Birchwood Court, Suite L
Johnston, Iowa 50131
515.254.1393
Email Joshua DeBower

City Staff Project Contact
Dave Wilwerding, AICP
Johnston Community Development Director
515.727.7775
Email David Wilwerding

Project Description
This project will include bank stabilization along the pedestrian trail located south of Timberwood Drive and west of Long Meadow Drive in Greenwood Hills Plat 3, immediately upstream of improvements completed in the last several years in the Greenwood Hills Greenbelt. This project is located on property owned by the City and will focus solely on stabilizing the creek banks which are threatening the trail, primarily through the use of rip rap and sheet pile walls. A portion of the trail will need to also be reconstructed following completion of the stabilization work.

Project Funding
The Timberwood Drive Trail stabilization project is funded by the Johnston Stormwater Utility, which was implemented in July 2012 to create a dedicated funding source for projects that reduce erosion, protect properties and infrastructure from flooding and to improve water quality within the City of Johnston. For more information on the stormwater utility, click here.