The Harris County Flood Control District is working in 2019 to prepare a final report concerning the Cedar Bayou Flood Risk Reduction Study. The report will recommend flood risk reduction projects throughout the Cedar Bayou watershed and provide associated cost estimates for the recommended projects. Some of those recommendations have already resulted in several projects included in the 2018 Bond Program.
The purpose of the study, which began in February 2017, is to identify flood risks, develop options to mitigate that risk, update the Harris County Flood Control District Hazard Mitigation Plan, and explore enhancements to the existing flood warning system. The principal focus is on streams located in Harris County. The feasibility study investigated 18 of the tributaries on the Harris County side of the watershed in greater detail, as well as the main stem of Cedar Bayou, for a total of more than 90 stream miles. As part of the planning process, input from the surrounding jurisdictions was considered and, as appropriate, will be included in the final recommendations for improvements to the Cedar Bayou watershed.
The study will produce updated floodplain modeling information along Cedar Bayou on studied streams, as well as develop detailed modeling for several previously unstudied streams within Harris County. In addition, the study will investigate structural and nonstructural flood damage reduction projects for Cedar Bayou and selected tributaries within Harris County and will develop recommendations for flood risk reduction in the watershed that consider environmental concerns such as stream processes and the natural environment.
Funding for the study is made possible by a $250,000 Flood Protection Planning Grant awarded to the Flood Control District by the Texas Water Development Board. The Flood Control District has already committed an additional $450,000 towards the work effort.