SCS-Sandy Creek Site-21, located in Pontotoc County, Oklahoma, is a state-owned dam designed by the USDA NRCS with a primary purpose of flood risk reduction.
Wind
Humidity
Completed in 1972, this earth dam stands at a height of 28 feet and spans a length of 800 feet, with a maximum storage capacity of 230 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement.
Situated on the TR-Coon Creek, this low-hazard potential structure has a controlled spillway and a single valve outlet gate. Despite its very high risk assessment rating, the dam's condition assessment is currently not rated, with the last inspection dating back to 2005. The dam's emergency action plan (EAP) status, inundation maps, and risk management measures are all under review, highlighting the need for ongoing monitoring and maintenance to ensure the safety and effectiveness of this critical flood control infrastructure in the face of changing climate patterns and water resource challenges.
Year Completed |
1972 |
Dam Length |
800 |
Dam Height |
28 |
River Or Stream |
TR-COON CREEK |
Primary Dam Type |
Earth |
Surface Area |
51 |
Hydraulic Height |
28 |
Nid Storage |
230 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Rock Creek At Sulphur
|
8cfs |
Washita River Near Pauls Valley
|
335cfs |
Little River Near Sasakwa
|
15cfs |
Little River Near Tecumseh
|
7cfs |
Pennington Creek Near Reagan
|
7cfs |
Canadian River At Purcell
|
208cfs |