Greenwood Hills Creek Restoration

Greenwood Hills Creek Restoration
The City of Johnston had developed residential housing through a greenbelt area, and over the past 20 years , no improvements had been made to the stream or stream bank itself. Trees and vegetation had become overgrown and the badly eroded banks needed severe attention.

The Presto Geoweb cellular confinement system was selected and designed to help stabilize the steeper slopes along the creek after grubbing and clearing of the overgrown trees had been completed. The geocell product was installed with Kevlar tendons for additional load transfer and infilled with an amended soil. Flexterra HP-FGM was used to protect the infill from erosion.

Approximately 21,000 sf of stream bank was permanently stabilized with the geocell product, along with native grasses and plugs incorporated into the landscape. This will help preserve the value of the highly profiled residential homes and protect back yards throughout the neighborhood from further land loss.

Project: Greenwood Hills Creek Restoration
Location: Johnston, Iowa
Application/Solution: Steep slope stabilization using Geoweb
Market Sector: Erosion Control
Salesperson: Steve Krehbiel
Owner: City of Johnston, Iowa
Engineer: Nilles and Associates
Contractor: Corell Contractor Inc.
Installed: November 3, 2014