City of Houston temporarily lowers Lake Houston for ongoing dam rehabilitation project

 Thalle Construction Company began work on the Lake Houston Spillway Dam Rehabilitation Project in May 2019. (Kelly Schafler/Community Impact Newspaper)
Thalle Construction Co. began work on the Lake Houston Spillway Dam Rehabilitation Project in May. (Kelly Schafler/Community Impact Newspaper)

Thalle Construction Co. began work on the Lake Houston Spillway Dam Rehabilitation Project in May. (Kelly Schafler/Community Impact Newspaper)

The Coastal Water Authority began the process of lowering Lake Houston by about 5 inches on Jan. 28 to allow construction on the dam rehabilitation project to continue, according to a Jan. 28 news release from the city of Houston.

Prior to this week, the Coastal Water Authority had already been maintaining Lake Houston at roughly a foot below its normal pooling level of 42.5 feet above mean sea level for the ongoing Lake Houston Spillway Dam Rehabilitation Project.

The dam rehabilitation project began in May and is set to be completed late this year, Community Impact Newspaper previously reported. The goal of the $10 million project is to provide more stability to the dam by installing a new reinforced concrete training wall, building new concrete anchor blocks at the bottom of the dam's wall, and elevating the pool weirs by 7 feet to alter the water flow from the dam.

Erin Jones, the public information officer for Houston Public Works, said the lower lake level will remain in place until contractors can finish pouring concrete, which could be Feb. 4 depending on weather and supply conditions. The lake should reach 41 feet above mean sea level by Jan. 31, Jones said.

Waterfront homeowners along Lake Houston should secure their property, according to the release.


The dam rehabilitation project is not part of the $47.1 million Lake Houston dam gate project, which will add additional gates to the dam to increase its ability to release water.
By Kelly Schafler

Managing editor, South Houston

Kelly joined Community Impact Newspaper as a reporter in June 2017 after majoring in print journalism and creative writing at the University of Houston. In March 2019, she transitioned to editor for the Lake Houston-Humble-Kingwood edition and began covering the Spring and Klein area as well in August 2020. In June 2021, Kelly was promoted to South Houston managing editor.