Ehlis Brothers Dam is an earth dam located in Hettinger County, North Dakota, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Ehlis Brothers Dam
The primary purpose of Ehlis Brothers Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ehlis Brothers (private). It impounds the Cannonball River-tr near N.
The dam stands 18 feet tall, creates a reservoir covering 18 acres, has a maximum storage capacity of 130 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1967, the structure is well into its service life at over 50 years old.
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.
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Location
| State | North Dakota |
| County | Hettinger |
| Nearest City | N |
| River/Stream | Cannonball River-tr |
| Coordinates | 46.60630, -102.91362 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 130 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Ehlis Brothers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00404 |
| Federal ID | ND00404 |
| More Info | State Dam Safety Program |