Garrison Creek Dam
Garrison Creek Dam is an earth dam located in Sequoyah County, Oklahoma, built in 2003. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Garrison Creek Dam
The primary purpose of Garrison Creek Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Roland Utility Authority (local government). It impounds the Garrison Creek near Roland.
The dam stands 66 feet tall and stretches 1,000 feet across, creates a reservoir covering 47 acres, has a maximum storage capacity of 1,700 acre-feet, and collects water from a drainage area of 3,020 square miles. Completed in 2003, the structure is relatively new.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/03/2022.
At 66 feet, this dam is taller than 96% 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 | Sequoyah |
| Nearest City | Roland |
| River/Stream | Garrison Creek |
| Coordinates | 35.44355, -94.51565 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 66 ft |
| Dam Height | 66 ft |
| Dam Length | 1,000 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 1,700 acre-ft |
| Max Storage | 1,700 acre-ft |
| Normal Storage | 1,150 acre-ft |
| Surface Area | 47 acres |
| Drainage Area | 3,020 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | ROLAND UTILITY AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/03/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK30063 |
| Federal ID | OK30063 |
| More Info | State Dam Safety Program |