WRIGHT PATMAN LK NR TEXARKANA

Reservoir Levels Weather Hydrology
November 21, 2024

YEAR OVER YEAR

SUMMARY

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0.01%
Percent of Normal 100%
Minimum 222.85 ft
2011-12-03
Maximum 254.54 ft
2016-05-09
Average 226 ft
Dam_Height 106
Hydraulic_Height 101
Drainage_Area 3443
Year_Completed 1954
Nid_Storage 6505000
Structural_Height 106
River_Or_Stream SULPHUR RIVER
Foundations Soil
Surface_Area 20300
Hazard_Potential High
Outlet_Gates Uncontrolled - 0
Dam_Length 18640
Primary_Dam_Type Earth
Nid_Height 106

Wright Patman Dam, located on the Sulphur River in Texas, was completed in 1954 by the United States Army Corps of Engineers (USACE) for flood risk reduction. With a height of 106 feet and a maximum storage capacity of 6.5 million acre-feet, the dam serves multiple purposes including fish and wildlife pond, recreation, and water supply. The dam's uncontrolled spillway, with a width of 200 feet, is designed to handle a maximum discharge of 81,000 cubic feet per second during high water events to reduce peak flooding levels downstream.

Despite its risk classification as moderate, the dam's potential impacts in the event of a breach are significant, especially for downstream communities like Shreveport and Alexandria, Louisiana. The USACE actively manages the dam's risk by conducting emergency exercises, updating the Emergency Action Plan, and implementing interim risk reduction measures such as stockpiling materials to prevent embankment erosion. Regular dam inspections, detailed monitoring systems, and pre-positioned flood fighting materials ensure the structure's integrity and prompt response to changing conditions. Overall, Wright Patman Dam plays a crucial role in mitigating flood risks while safeguarding public safety and the environment.

Reservoir Levels

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Watershed River Levels

720

Cubic Feet Per Second

58

Cubic Feet Per Second

131

Cubic Feet Per Second

139

Cubic Feet Per Second

Point of Interest

Hunkah Prairie Natural Area

Hunkah Prairie Natural Area

Hunkah Prairie Natural Area is a 260-acre nature reserve located in the state of Missouri. This area is a top destination for nature enthusiasts as it is one of the few remaining examples of unplowed, native tallgrass prairie in the state. The natural area boasts a wide variety of plant and animal species, including more than 200 species of birds, diverse grasses, and numerous wildflowers. Visitors can explore the area by hiking the two-mile trail that loops through the prairie, offering stunning views of the grasses and wildflowers. Along the trail, visitors can see a variety of wildlife, including deer, ...