Mallard Islandgma 4;5;7

Lake Sakakawea-TR· McLean, North Dakota· Built 1988· Earth· 8 ft tall
Low Hazard Fish And Wildlife Pond Federal Government

Key Takeaway

Mallard Islandgma 4;5;7 is classified as low hazard in North Dakota. It was completed in 1988 and is 38 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 8 ft (taller than 6% in ND)
Dam Length0 ft
Dam TypeEarth
Max Storage279 acre-ft
Normal Storage175 acre-ft
Surface Area48 acres
Drainage Area0 sq mi
Year Completed1988 (38 years old)
NID IDND00433

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

USACE

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mallard Islandgma 4;5;7?

Mallard Islandgma 4;5;7 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 Mallard Islandgma 4;5;7?

Mallard Islandgma 4;5;7 is owned by USACE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mallard Islandgma 4;5;7 built?

Mallard Islandgma 4;5;7 was completed in 1988, making it 38 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 Mallard Islandgma 4;5;7?

Mallard Islandgma 4;5;7 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 Mallard Islandgma 4;5;7?

Mallard Islandgma 4;5;7 has a dam height of 8 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.