Big Timber #50

BLACKTAIL CREEK· Rosebud, Montana· Built 1950· Earth· 18 ft tall

Key Takeaway

Big Timber #50 is classified as low hazard in Montana. It was completed in 1950 and is 76 years old. Its primary use is fire protection.

Physical Details

Dam Height 18 ft (taller than 36.9% in MT)
Dam Length650 ft
Dam TypeEarth
Max Storage86 acre-ft
Normal Storage50 acre-ft
Drainage Area4 sq mi
Max Discharge120 cfs
Year Completed1950 (76 years old)
NID IDMT01924

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

BIG TIMBER LIVESTOCK CO

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Big Timber #50?

Big Timber #50 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 Big Timber #50?

Big Timber #50 is owned by BIG TIMBER LIVESTOCK CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Big Timber #50 built?

Big Timber #50 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 Big Timber #50?

Big Timber #50 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 Big Timber #50?

Big Timber #50 has a dam height of 18 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.