Northglenn Drainage Way Remediation Project

Project Description
In 2010 the City of Johnston completed a Watershed Assessment and Stormwater Management and Action Plan for the entire community. This plan identified 10 priority projects that were needed to address erosion, protect public and private property and improve water quality. One of these projects identified was the Northglenn Drainage Way. The Northglenn neighborhood drains to a long grassed channel that runs parallel to a city bike trail on the southern side of the development. Since its construction, maintenance of this stream channel has been difficult due to standing water and pour overall drainage through the area. This project would address the area east of Merle Hay Road. The channel is very flat and constantly has standing water. It will also rise quickly with large storm events. Several attempts have been made to improve the channel through minor regrading, tiling and other efforts. This project will seek larger solutions to address the constant maintenance issues caused by the flat nature of the drainage way.

Project Area Map
Click here (PDF) to view the map

Project Open House
A letter (PDF) has been mailed to area residents regarding the initial survey work that will be occurring beginning in mid-January 2019. In addition, an open house has been scheduled following completion of the survey work, but prior to any design beginning to solicit resident feedback and observations, this meeting has been scheduled for:

Northglenn Drainage Way Informational Open House
February 8, 2019
5:30 – 7:00 p.m.
Johnston City Hall, 6221 Merle Hay Road, Johnston, IA 50131

Estimated Cost
$450,000 covering engineering and construction

Schedule
Design – January – June 2019
Construction – Late Summer/Fall 2019

Contractor
TBD

Engineer
Evan Del Val PE, CFM
Civil Engineer
508 East Locust St.
Des Moines, IA 50309
P: 515.243.9143
C: 619.817.5524
evan.delval@is-grp.com

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