Muddy Fork Site 4, also known as Prairie Grove Lake Dam, is a crucial structure owned by the local government in Prairie Grove, Arkansas.
Wind
Humidity
Built in 1967 by the USDA NRCS, this earth dam stands at a height of 78 feet and serves primarily for flood risk reduction. With a storage capacity of 4977 acre-feet and a surface area of 95 acres, this dam plays a vital role in managing water resources in the area.
Situated on Blair Creek in Washington County, Muddy Fork Site 4 has a drainage area of 7.9 square miles and a maximum discharge of 4418 cubic feet per second. The dam's spillway is uncontrolled, and it has a high hazard potential due to its location and structural characteristics. Although the condition assessment is not rated, the risk assessment indicates a moderate risk level (3), prompting the need for ongoing monitoring and maintenance to ensure its continued effectiveness in flood risk reduction and water supply management.
Overall, Muddy Fork Site 4 is a significant infrastructure project that highlights the importance of water resource management and climate resilience. With its strategic location, high hazard potential, and moderate risk level, this dam serves as a critical asset in safeguarding the community against potential flooding events. Continuous inspection, monitoring, and risk management measures are essential to ensure the long-term sustainability and functionality of this essential water resource facility.
Year Completed |
1967 |
Dam Length |
1240 |
Dam Height |
73 |
River Or Stream |
BLAIR CREEK |
Primary Dam Type |
Earth |
Surface Area |
95 |
Hydraulic Height |
43 |
Drainage Area |
7.9 |
Nid Storage |
4977 |
Structural Height |
78 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Nid Height |
78 |
| Location | Reservations | Toilets |
|---|---|---|
Lake Wedington Rec. Area
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Lake Wedington Recreation Area
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Devils Den State Park
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