The Harris County Flood Control District (HCFCD) completed the Cedar Bayou Flood Risk Reduction Study (FRRS), which was funded as part of the 2018 Bond program. This study focused on evaluating long-term flood risk reduction strategies for the watershed while outlining improvements that could provide benefits in the short term.
A long-term proposed solution identified by the study is a large regional detention pond, approximately 155 acres in size and providing approximately 335 million gallons of storage volume. Additionally, channel improvements to widen and deepen Q122-00-00 upstream were identified as a long-term proposed solution. For short-term improvements the study recommends acquisition of right-of-way for future improvements, the initial construction of the regional stormwater detention basins, and implementing the long-term proposed solutions.
The long-term proposed solutions would be phased as funding becomes available with the estimated total cost for the ultimate solution equal to roughly $31.5 million.
The project benefits include more effective channel conveyance to contain future 100-year flows and removal of inundation of up to 35 structures in the 100-year event. The project benefits also include the removal of inundation by approximately 80% in the 100-year event and an estimated reduction of $2.2 million in damages.