Hugo Dam
Hugo Dam is a gravity dam located in Choctaw County, Oklahoma, built in 1974. It carries a High hazard potential classification.
About Hugo Dam
The primary purpose of Hugo Dam 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 Usace - Tulsa District (federal). It impounds the Kiamichi River near Sawyer.
The dam stands 101 feet tall and stretches 10,200 feet across, creates a reservoir covering 13,144 acres, has a maximum storage capacity of 1,274,107 acre-feet, and collects water from a drainage area of 1,434 square miles. Completed in 1974, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 04/06/2021.
At 101 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 | Choctaw |
| Nearest City | Sawyer |
| River/Stream | Kiamichi River |
| Coordinates | 34.01043, -95.38157 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 101 ft |
| Dam Height | 101 ft |
| Dam Length | 10,200 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 1,274,107 acre-ft |
| Max Storage | 1,274,107 acre-ft |
| Normal Storage | 158,617 acre-ft |
| Surface Area | 13,144 acres |
| Drainage Area | 1,434 sq mi |
| Max Discharge | 365,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - Tulsa District |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 04/06/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK10300 |
| Federal ID | OK10300 |
| More Info | State Dam Safety Program |