De Trobriand Gma 1

Lake Sakakawea-TR· McLean, North Dakota· Built 1986· Earth· 17 ft tall
Low Hazard Fish And Wildlife Pond Federal Government

Key Takeaway

De Trobriand Gma 1 is classified as low hazard in North Dakota. It was completed in 1986 and is 40 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 17 ft (taller than 56.8% in ND)
Dam Length265 ft
Dam TypeEarth
Max Storage56 acre-ft
Normal Storage56 acre-ft
Surface Area11 acres
Drainage Area2 sq mi
Year Completed1986 (40 years old)
NID IDND00427

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

US Corps Of Engineers

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of De Trobriand Gma 1?

De Trobriand Gma 1 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates De Trobriand Gma 1?

De Trobriand Gma 1 is owned by US Corps Of Engineers (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was De Trobriand Gma 1 built?

De Trobriand Gma 1 was completed in 1986, making it 40 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of De Trobriand Gma 1?

De Trobriand Gma 1 serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is De Trobriand Gma 1?

De Trobriand Gma 1 has a dam height of 17 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.