SCS-Chigley Sandy Creek Site-06 is a state-regulated earth dam located in Garvin, Oklahoma, designed by USDA NRCS with a primary purpose of flood risk reduction.
Wind
Humidity
Built in 1955, this dam stands at a height of 38 feet and has a hydraulic height of 33 feet, with a maximum storage capacity of 1142 acre-feet. The dam spans 1490 feet in length and has a controlled spillway with a width of 2 feet.
With a low hazard potential and a condition assessment of "Not Rated," SCS-Chigley Sandy Creek Site-06 poses a very high risk (rating of 1) due to its location and potential impact in the event of a failure. Despite being state-regulated and inspected regularly, the dam has not been assessed for its condition in recent years, raising questions about its current state of maintenance and readiness for emergencies. There is a need for updated emergency action plans and risk management measures to mitigate the very high risk associated with this dam.
Year Completed |
1955 |
Dam Length |
1490 |
Dam Height |
38 |
River Or Stream |
EAST BR CHIGLEY SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
58 |
Hydraulic Height |
33 |
Nid Storage |
1142 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Rock Creek At Sulphur
|
8cfs |
Washita River Near Pauls Valley
|
329cfs |
Pennington Creek Near Reagan
|
8cfs |
Washita River Near Dickson
|
322cfs |
Blue River Near Connerville
|
47cfs |
Walnut Creek At Purcell
|
28cfs |