Nine Gallons of Milk

NINEMILE COULEE· Hill, Montana· Built 1958· Earth· 25 ft tall
Low Hazard Recreation State Government

Key Takeaway

Nine Gallons of Milk is classified as low hazard in Montana. It was completed in 1958 and is 68 years old. Its primary use is recreation.

Physical Details

Dam Height 25 ft (taller than 70.3% in MT)
Dam Length300 ft
Dam TypeEarth
Max Storage53 acre-ft
Normal Storage17 acre-ft
Year Completed1958 (68 years old)
NID IDMT03436

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: DNRC

Ownership

STATE OF MONTANA, D.N.R.C., T.L.M.D.

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Nine Gallons of Milk?

Nine Gallons of Milk 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 Nine Gallons of Milk?

Nine Gallons of Milk is owned by STATE OF MONTANA, D.N.R.C., T.L.M.D. (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Nine Gallons of Milk built?

Nine Gallons of Milk was completed in 1958, making it 68 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 Nine Gallons of Milk?

Nine Gallons of Milk serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Nine Gallons of Milk?

Nine Gallons of Milk has a dam height of 25 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.