Scs-big Wewoka Creek Site-31
Scs-big Wewoka Creek Site-31 is an earth dam located in Seminole County, Oklahoma, built in 1959. It carries a High hazard potential classification and has a fair condition assessment.
About Scs-big Wewoka Creek Site-31
The primary purpose of Scs-big Wewoka Creek Site-31 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 Creek near Wetumka.
The dam stands 30 feet tall and stretches 1,590 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 690 acre-feet. Completed in 1959, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/07/2011. That was 14 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Oklahoma dam safety program can provide more specific information about emergency planning for this structure.
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 | Wetumka |
| River/Stream | Tr-wewoka Creek |
| Coordinates | 35.23830, -96.47244 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,590 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 690 acre-ft |
| Max Storage | 690 acre-ft |
| Normal Storage | 105 acre-ft |
| Surface Area | 25 acres |
| Max Discharge | 1,820 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SEMINOLE CO CONS DIST |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 11/07/2011 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK01317 |
| Federal ID | OK01317 |
| More Info | State Dam Safety Program |