Scs-cotton-coon-mission Cr Site-015
Scs-cotton-coon-mission Cr Site-015 is an earth dam located in Washington County, Oklahoma, built in 1980. It carries a High hazard potential classification.
About Scs-cotton-coon-mission Cr Site-015
The primary purpose of Scs-cotton-coon-mission Cr Site-015 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 Caney Valley Cons Dist (state). It impounds the Tr-coon Creek near Dewey.
The dam stands 38 feet tall and stretches 3,250 feet across, creates a reservoir covering 30 acres, and has a maximum storage capacity of 1,233 acre-feet. Completed in 1980, the structure is 46 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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 01/01/1980. That was 46 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
At 38 feet, this dam is taller than 85% of dams nationwide.
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 | Washington |
| Nearest City | Dewey |
| River/Stream | Tr-coon Creek |
| Coordinates | 36.78149, -95.88459 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 3,250 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 1,233 acre-ft |
| Max Storage | 1,233 acre-ft |
| Normal Storage | 86 acre-ft |
| Surface Area | 30 acres |
| Max Discharge | 956 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CANEY VALLEY CONS DIST |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 01/01/1980 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OK20855 |
| Federal ID | OK20855 |
| More Info | State Dam Safety Program |