Attoyac Bayou WS SCS Site 11 Dam, located in Shelby, Texas, was completed in 1971 by the USDA NRCS for the primary purpose of flood risk reduction along Bear Bayou. This earth dam stands at a height of 27 feet and has a length of 1760 feet, providing a normal storage capacity of 191 acre-feet and a maximum storage of 3668 acre-feet. Despite not having a spillway, the dam features a slide gate outlet for controlled water release.
Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Attoyac Bayou WS SCS Site 11 Dam is rated with a high risk assessment of 2. The dam, constructed with buttress core types and an unknown foundation, has not been rated for condition assessment, and no emergency action plan has been prepared. With a drainage area of 5.52 square miles and a surface area of 50 acres, this dam plays a crucial role in mitigating flood risks in the region, although its exact risk management measures are not detailed in the available data. For water resource and climate enthusiasts, this dam serves as a significant structure in the local watershed, highlighting the importance of proper infrastructure for managing water resources in flood-prone areas.
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