Scs-stillwater Creek Site-11 is an earth dam located in Payne County, Oklahoma, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 850 ft long. 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-stillwater Creek Site-11
The primary purpose of Scs-stillwater Creek Site-11 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 Payne Co Cons Dist (state). It impounds the Tr-stillwater Creek near Mehan.
The dam stands 24 feet tall and stretches 850 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 366 acre-feet. Completed in 1967, 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.
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Location
| State | Oklahoma |
| County | Payne |
| Nearest City | Mehan |
| River/Stream | Tr-stillwater Creek |
| Coordinates | 36.07211, -96.96036 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 850 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 366 acre-ft |
| Max Storage | 366 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 13 acres |
| Max Discharge | 840 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Payne 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 | OK12145 |
| Federal ID | OK12145 |
| More Info | State Dam Safety Program |