Long Lake Nwr 7 is an earth dam located in Burleigh County, North Dakota, built in 1943. It carries a Low hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall and 4,000 ft long. 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 Long Lake Nwr 7
The primary purpose of Long Lake Nwr 7 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 USFWS (federal). It impounds the Long Lake Creek-tr near Moffit.
The dam stands 8 feet tall and stretches 4,000 feet across, creates a reservoir covering 11,600 acres, has a maximum storage capacity of 106,200 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1943, 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 06/24/2002. That was over 24 years ago.
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Location
| State | North Dakota |
| County | Burleigh |
| Nearest City | Moffit |
| River/Stream | Long Lake Creek-tr |
| Coordinates | 46.69249, -100.18404 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 4,000 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 106,200 acre-ft |
| Max Storage | 106,200 acre-ft |
| Normal Storage | 56,600 acre-ft |
| Surface Area | 11,600 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | USFWS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/24/2002 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00990 |
| Federal ID | ND00990 |
| More Info | State Dam Safety Program |