Square Butte Creek Dam 4 is an earth dam located in Oliver County, North Dakota, built in 1974. It carries a Significant hazard potential classification.
Dam profile
NID height · 49 ft49 ft tall and 1,396 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Square Butte Creek Dam 4
The primary purpose of Square Butte Creek Dam 4 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 Oliver Co Wrb (local government). It impounds the Hagel Creek-tr near N.
The dam stands 49 feet tall and stretches 1,396 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 6,544 acre-feet, and collects water from a drainage area of 28 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/27/2022.
At 49 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | North Dakota |
| County | Oliver |
| Nearest City | N |
| River/Stream | Hagel Creek-tr |
| Coordinates | 47.05166, -101.29141 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 49 ft |
| Dam Height | 43 ft |
| Dam Length | 1,396 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 6,544 acre-ft |
| Max Storage | 6,544 acre-ft |
| Normal Storage | 380 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 28 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Oliver Co Wrb |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/27/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | ND00231 |
| Federal ID | ND00231 |
| More Info | State Dam Safety Program |