Cypress, TX News – Harris County Flood Control District to Complete Crenshaw Stormwater Detention Basin

Cypress, TX News (April 9, 2014) - The Harris County Flood Control District has begun construction to complete the Crenshaw Stormwater Detention Basin, a project that will reduce flooding risks and damages in the Berry Bayou watershed of south Harris County.

The basin is located on a tributary of Berry Bayou, formally identified as HCFCD Unit C106-08-00, near the intersection of South Shaver Street with Crenshaw Road and Galveston Road (State Highway 3). The basin has already been partially excavated over several years through various excavation and removal contracts. On January 29, 2014, Harris County Commissioners Court awarded an approximately $1.95 million construction contract to low bidder BRH-Garver Construction LP, to finish the project.

Harris County Flood Control District has begun construction to complete the Crenshaw Stormwater Detention Basin in south Harris County.

Construction began in April and is expected to be completed in early 2015. The project includes removing approximately 180,000 cubic yards of soil, constructing a weir spillway structure connecting the basin to the Berry Bayou tributary, and installing a culvert under Crenshaw Road.

When complete, the basin will hold approximately 152 acre-feet, or more than 49 million gallons, of excess stormwater during heavy rain events. The basin will provide mitigation for future flood damage reduction improvements planned along Berry Bayou tributary C106-08-00, and must be completed in advance of those improvements.

The Crenshaw basin, formally identified as HCFCD Unit C506-02-00, is designed to include a permanent pool, planted with approximately 6.5 acres of stormwater treatment wetlands. Plans also call for planting wetland vegetation near the point where stormwater enters the basin, to filter the stormwater and keep floatable materials from entering the pool. The basin has also been designed with an approximately 200-foot long corridor of trees and other vegetation at its outfall, to shade and enhance the water that flows out of the basin.

A revegetation plan for the Crenshaw basin includes reforestation areas by the water’s edge and side slopes to provide shade, stabilize the site, decrease mowing needs, and further enhance water quality and habitat.

This project will require the temporary closure of Crenshaw Road near South Shaver Street for one to two weeks during the summer of 2014, to allow for construction of the culvert. During the temporary closure of Crenshaw Road, alternate detour routes for those living and working in the area will be via Fairmont Parkway, Genoa Red Bluff Road, Allen-Genoa Road, South Shaver Street, and Galveston Road/State Highway 3. There will be advance notification when an actual closure date has been determined.