Tomahawk Dam
Tomahawk Dam is an earth dam located in Barnes County, North Dakota, built in 1936. It carries a Low hazard potential classification and has a poor condition assessment.
About Tomahawk Dam
The primary purpose of Tomahawk Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Us Fish And Wildlife Service (federal). It impounds the Sheyenne-tr.
The dam stands 11 feet tall and stretches 500 feet across, creates a reservoir covering 77 acres, has a maximum storage capacity of 761 acre-feet, and collects water from a drainage area of 103 square miles. Completed in 1936, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/10/2013. That was over 12 years ago.
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Location
| State | North Dakota |
| County | Barnes |
| River/Stream | Sheyenne-tr |
| Coordinates | 47.07666, -98.17499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 500 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 761 acre-ft |
| Max Storage | 761 acre-ft |
| Normal Storage | 369 acre-ft |
| Surface Area | 77 acres |
| Drainage Area | 103 sq mi |
| Max Discharge | 1,560 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/10/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00356 |
| Federal ID | ND00356 |
| More Info | State Dam Safety Program |