Crown Butte Dam is an earth dam located in Morton County, North Dakota, built in 1963. It carries a Significant hazard potential classification.
Dam profile
NID height · 48 ft48 ft tall and 850 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 Crown Butte Dam
The primary purpose of Crown Butte Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nd Game & Fish (state). It impounds the Crown Butte Creek near N.
The dam stands 48 feet tall and stretches 850 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 1,230 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1963, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/23/2019.
At 48 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | North Dakota |
| County | Morton |
| Nearest City | N |
| River/Stream | Crown Butte Creek |
| Coordinates | 46.86495, -101.08955 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 48 ft |
| Dam Height | 48 ft |
| Dam Length | 850 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 1,230 acre-ft |
| Max Storage | 1,230 acre-ft |
| Normal Storage | 385 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 6 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Nd Game & Fish |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 09/23/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00190 |
| Federal ID | ND00190 |
| More Info | State Dam Safety Program |