Projects & Studies

As of 12/14/2018

W129-00-00 Channel Modifications

Updated January 2018


This marks the beginning of the third and final phase of the Flood Control District's W129-00-00 Channel Improvement Project. The already completed phases one and two included the enclosure of the existing drainage channel in dual 12-foot by 10-foot reinforced concrete box culverts from its confluence with Buffalo Bayou downstream to San Felipe, and then from San Felipe to Richmond, including the demolition and replacement of 50-year-old bridges that cross the drainage channel at Westheimer Road and at San Felipe. 


The Flood Control District recognized the need for repairs to W129-00-00 and launched a three-phase reconstruction project in 2004. The project's purpose is to improve the stormwater-carrying capacity and public safety features associated with a poorly functioning drainage channel, formally identified as HCFCD Unit W129-00-00, in the Highland Village area.

The third phase will span the section of channel between Richmond Avenue and Westpark Drive. In November 2017, Harris County Commissioners Court awarded the construction contract to BRH-Garver Construction, LP. On January 8, 2018, the Harris County Flood Control District issued a notice to proceed, and the contractor has begun mobilizing and obtaining access permits. Construction is expected to last through summer 2019.


The Flood Control District is committed to communicating information about the project to affected individuals and organizations so that citizens can make informed decisions to minimize inconvenience during construction. In addition to installing signage detailing alternate routes in the area, District officials will meet with local homeowners’ and civic associations, churches, schools, businesses and transportation and emergency services providers to provide information about the project and to answer questions.

To sign up to receive regular e-mail updates, please click on the “Subscribe to receive W129-00-00 Channel Enclosure Project updates” link in the right column at the top of this page. To ask a question, to comment on the project or to request a presentation for your organization, please call the Harris County Flood Control District’s Project and Study Information Line, which is monitored daily, at 713-684-4040.


The W129-00-00 drainage channel flows northward from Westpark Drive inside West Loop 610 and runs parallel to the Union Pacific Railroad tracks. It drains into Buffalo Bayou on the southern edge of the City of Houston’s Memorial Park. Along its approximately 2-mile route, W129-00-00 crosses under U.S. 59, Richmond, Westheimer and San Felipe, all of which carry heavy loads of traffic between the Galleria area and downtown Houston. The drainage channel is bordered by concentrated areas of residential and commercial development.

The Harris County Flood Control District has been maintaining the drainage channel since the mid-1950s. The drainage channel has exceeded its design life, and over time the slopes of W129-00-00 have experienced concrete failures and erosion. The easement for the drainage channel is restricted to a narrow 35-foot area, and that property is owned by Union Pacific Railroad and CenterPoint Energy