De Trobriand Gma 1 is an earth dam located in McLean County, North Dakota, built in 1986. It carries a Low hazard potential classification.
Dam profile
NID height · 17 ft17 ft tall and 265 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 De Trobriand Gma 1
The primary purpose of De Trobriand Gma 1 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 Corps of Engineers (federal). It impounds the Lake Sakakawea-tr near N.
The dam stands 17 feet tall and stretches 265 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1986, the structure is 40 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 | McLean |
| Nearest City | N |
| River/Stream | Lake Sakakawea-tr |
| Coordinates | 47.62337, -101.29454 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 265 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US Corps of Engineers |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00427 |
| Federal ID | ND00427 |
| More Info | State Dam Safety Program |