Pso Southwestern Power Station No.3
Pso Southwestern Power Station No.3 is an earth dam located in Caddo County, Oklahoma, built in 1957. It carries a High hazard potential classification and has a fair condition assessment.
About Pso Southwestern Power Station No.3
Pso Southwestern Power Station No.3 is a dam in Caddo, Oklahoma. The dam is owned by Public Service Company Of Oklahoma (public utility). It impounds the Leaper Cr near Anadarko.
The dam stands 90 feet tall and stretches 2,385 feet across, creates a reservoir covering 575 acres, has a maximum storage capacity of 16,650 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1957, 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 10/04/2022.
At 90 feet, this dam is taller than 98% of all dams in the United States.
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 | Leaper Cr |
| Coordinates | 35.12058, -98.33406 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 90 ft |
| Dam Height | 90 ft |
| Dam Length | 2,385 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 16,650 acre-ft |
| Max Storage | 16,650 acre-ft |
| Normal Storage | 4,800 acre-ft |
| Surface Area | 575 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 33,150 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | PUBLIC SERVICE COMPANY OF OKLAHOMA |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/04/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK11037 |
| Federal ID | OK11037 |
| More Info | State Dam Safety Program |