Dry Blood Creek Detention Dam

Dry Blood Creek· Petroleum, Montana· Built 1964· Gravity·
High Hazard Flood Risk Reduction Federal Government

Key Takeaway

Dry Blood Creek Detention Dam is classified as high hazard in Montana. It was completed in 1964 and is 62 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 Length1,300 ft
Dam TypeGravity
Max Storage529 acre-ft
Normal Storage318 acre-ft
Surface Area52 acres
Drainage Area11 sq mi
Max Discharge2,435 cfs
Year Completed1964 (62 years old)
NID IDMT00808

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: July 20, 2020
State Regulated: No

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dry Blood Creek Detention Dam?

Dry Blood Creek Detention 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 Dry Blood Creek Detention Dam?

Dry Blood Creek Detention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dry Blood Creek Detention Dam built?

Dry Blood Creek Detention Dam was completed in 1964, making it 62 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 Dry Blood Creek Detention Dam?

Dry Blood Creek Detention Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Dry Blood Creek Detention Dam last inspected?

Dry Blood Creek Detention Dam was last inspected on July 20, 2020. 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.