Hamann Dam is an earth dam located in Slope County, North Dakota, built in 1935. It carries a Low hazard potential classification.
Dam profile
NID height · 47 ft47 ft tall and 530 ft long, taller than 91% 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 Hamann Dam
The primary purpose of Hamann Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Hamann (private). It impounds the Little Missouri River-tr near N.
The dam stands 47 feet tall and stretches 530 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 180 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 06/03/1986. That was over 40 years ago.
At 47 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | North Dakota |
| County | Slope |
| Nearest City | N |
| River/Stream | Little Missouri River-tr |
| Coordinates | 46.52816, -103.40769 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Height | 44 ft |
| Dam Length | 530 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 180 acre-ft |
| Max Storage | 180 acre-ft |
| Normal Storage | 180 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Hamann |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/03/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00377 |
| Federal ID | ND00377 |
| More Info | State Dam Safety Program |