PAT MAYSE LK NR CHICOTA

December 3, 2024

YEAR OVER YEAR

Pat Mayse Dam, also known as Pat Mayse Lake, is a Federal-owned structure located in Lamar County, Texas. Completed in 1967, this earth-type dam stands at a height of 96 feet and has a volume of 5,580,000 cubic yards. Its primary purpose is flood risk reduction, with additional functions for recreation and water supply. The dam's spillway type is uncontrolled, with a spillway width of 100 feet and a hazard potential classified as high.

The dam's risk assessment, conducted by the US Army Corps of Engineers, identified potential issues such as erosion from water flow over the spillway and embankment erosion due to water seepage. In the event of a breach, downstream areas, particularly Arthur City, TX, could face flooding and economic impacts. To mitigate these risks, the USACE implements various measures, including emergency exercises with local responders, regular updates to the Emergency Action Plan, and continuous monitoring and maintenance of the dam's integrity.

Overall, Pat Mayse Dam is a crucial infrastructure for flood control in the region, with risk management measures in place to ensure its safety and functionality. Climate and water resource enthusiasts can appreciate the complex engineering and proactive strategies employed to protect downstream communities and maintain the dam's integrity in the face of potential hazards.

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Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0%
Percent of Normal 100%
Minimum 448.11 ft
2022-10-22
Maximum 461.17 ft
2018-03-02
Average 450 ft
Dam_Height 96
Hydraulic_Height 92
Drainage_Area 175
Year_Completed 1967
Nid_Storage 457800
Structural_Height 96
Primary_Dam_Type Earth
River_Or_Stream SANDERS CREEK
Foundations Rock, Soil
Surface_Area 5993
Hazard_Potential High
Outlet_Gates Uncontrolled - 0
Dam_Length 7080
Nid_Height 96
Reservoir Levels

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