Scs-tonkawa Creek Site-004
Scs-tonkawa Creek Site-004 is an earth dam located in Caddo County, Oklahoma, built in 1969. It carries a High hazard potential classification and has a fair condition assessment.
About Scs-tonkawa Creek Site-004
The primary purpose of Scs-tonkawa Creek Site-004 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 South Caddo Cons Dist (state). It impounds the Tonkawa Cr near Anadarko.
The dam stands 36 feet tall and stretches 1,460 feet across, creates a reservoir covering 24 acres, and has a maximum storage capacity of 552 acre-feet. Completed in 1969, 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 09/23/2010. That was 15 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
At 36 feet, this dam is taller than 83% 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 | Caddo |
| Nearest City | Anadarko |
| River/Stream | Tonkawa Cr |
| Coordinates | 35.02665, -98.27097 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 1,460 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 552 acre-ft |
| Max Storage | 552 acre-ft |
| Normal Storage | 82 acre-ft |
| Surface Area | 24 acres |
| Max Discharge | 2,121 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SOUTH CADDO CONS DIST |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/23/2010 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK00532 |
| Federal ID | OK00532 |
| More Info | State Dam Safety Program |