Pr-110 Retention Dam

COTTONWOOD CK./MILK RIVER· Phillips, Montana· Built 1936· Gravity·
Low Hazard Fire Protection Stock Or Small Fish Pond Federal Government

Key Takeaway

Pr-110 Retention Dam is classified as low hazard in Montana. It was completed in 1936 and is 90 years old. Its primary use is fire protection.

Physical Details

Dam Length608 ft
Dam TypeGravity
Max Storage114 acre-ft
Surface Area17 acres
Drainage Area1 sq mi
Year Completed1936 (90 years old)
Year Modified1967
NID IDMT00775

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
Last Inspection: August 17, 2016
State Regulated: No

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pr-110 Retention Dam?

Pr-110 Retention Dam 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 Pr-110 Retention Dam?

Pr-110 Retention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Pr-110 Retention Dam built?

Pr-110 Retention Dam was completed in 1936, making it 90 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 Pr-110 Retention Dam?

Pr-110 Retention Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Pr-110 Retention Dam last inspected?

Pr-110 Retention Dam was last inspected on August 17, 2016. 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.