Alkali Flat

DIFFUSED SURFACE WATER· Toole, Montana· Built 1965· Earth· 25 ft tall

Key Takeaway

Alkali Flat is classified as low hazard in Montana. It was completed in 1965 and is 61 years old. Its primary use is fire protection.

Physical Details

Dam Height 25 ft (taller than 70.3% in MT)
Dam Length275 ft
Dam TypeEarth
Max Storage397 acre-ft
Normal Storage236 acre-ft
Year Completed1965 (61 years old)
NID IDMT03618

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

CHARLES DALEY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Alkali Flat?

Alkali Flat 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 Alkali Flat?

Alkali Flat is owned by CHARLES DALEY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Alkali Flat built?

Alkali Flat was completed in 1965, making it 61 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 Alkali Flat?

Alkali Flat 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.

How tall is Alkali Flat?

Alkali Flat 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.