Lars

HUNTLEY COULEE· Chouteau, Montana· Built 1950· Earth· 66 ft tall
Low Hazard Irrigation Private

Key Takeaway

Lars is classified as low hazard in Montana. It was completed in 1950 and is 76 years old. Its primary use is irrigation.

Physical Details

Dam Height 66 ft (taller than 98.1% in MT)
Dam Length580 ft
Dam TypeEarth
Max Storage18 acre-ft
Normal Storage18 acre-ft
Year Completed1950 (76 years old)
NID IDMT03680

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

C 5 RANCH CORP

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lars?

Lars 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 Lars?

Lars is owned by C 5 RANCH CORP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lars built?

Lars was completed in 1950, making it 76 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 Lars?

Lars serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lars?

Lars has a dam height of 66 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.