Scs-big Wewoka Creek Site-21 is an earth dam located in Seminole County, Oklahoma, built in 1963. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 29 ft29 ft tall and 1,275 ft long, taller than 65% 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-big Wewoka Creek Site-21
The primary purpose of Scs-big Wewoka Creek Site-21 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 Seminole Co Cons Dist (state). It impounds the Tr-wewoka Cr near Wewoka.
The dam stands 29 feet tall and stretches 1,275 feet across, creates a reservoir covering 34 acres, and has a maximum storage capacity of 681 acre-feet. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/04/2011. That was over 14 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oklahoma |
| County | Seminole |
| Nearest City | Wewoka |
| River/Stream | Tr-wewoka Cr |
| Coordinates | 35.14026, -96.54881 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,275 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 681 acre-ft |
| Max Storage | 681 acre-ft |
| Normal Storage | 183 acre-ft |
| Surface Area | 34 acres |
| Max Discharge | 1,860 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Seminole Co Cons Dist |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/04/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK01326 |
| Federal ID | OK01326 |
| More Info | State Dam Safety Program |