Bowman-Haley Dam

NORTH FORK GRAND RIVER· Bowman, North Dakota· Built 1970· Earth·

High Hazard Flood Risk Reduction Recreation Water Supply Federal Government

Key Takeaway

Bowman-Haley Dam is classified as high hazard in North Dakota. It was completed in 1970 and is 56 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Length	5,730 ft
Dam Type	Earth
Max Storage	171.8K acre-ft
Normal Storage	19.8K acre-ft

Surface Area	1,750 acres
Drainage Area	471 sq mi
Max Discharge	64,200 cfs
Year Completed	1970 (56 years old)
NID ID	ND00147

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes

Last Inspection: May 12, 2021

State Regulated: Yes

Regulatory Agency: NDSWC

Ownership

USACE - Omaha District

Federal Government

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Frequently Asked Questions

What is the hazard classification of Bowman-Haley Dam?

Bowman-Haley Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Bowman-Haley Dam?

Bowman-Haley Dam is owned by USACE - Omaha District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bowman-Haley Dam built?

Bowman-Haley Dam was completed in 1970, making it 56 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 Bowman-Haley Dam?

Bowman-Haley Dam serves the following purposes: Flood Risk Reduction, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Bowman-Haley Dam last inspected?

Bowman-Haley Dam was last inspected on May 12, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

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.