Scs-little Washita River Site-43 is an earth dam located in Grady County, Oklahoma, built in 1972. It carries a Low hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 670 ft long, taller than 90% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Scs-little Washita River Site-43
The primary purpose of Scs-little Washita River Site-43 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Grady Co Cons Dist (state). It impounds the Tr-east Bills Cr near Ninnekah.
The dam stands 45 feet tall and stretches 670 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 109 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 01/01/1980. That was over 46 years ago.
At 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Oklahoma |
| County | Grady |
| Nearest City | Ninnekah |
| River/Stream | Tr-east Bills Cr |
| Coordinates | 34.96055, -98.04408 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 670 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 109 acre-ft |
| Max Storage | 109 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 438 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Grady Co Cons Dist |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/01/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK20840 |
| Federal ID | OK20840 |
| More Info | State Dam Safety Program |