Whitetail Dam

WHITETAIL CREEK· Jefferson, Montana· Built 1922· Earth· 28 ft tall
High Hazard Irrigation Private

Key Takeaway

Whitetail Dam is classified as high hazard in Montana. It was completed in 1922 and is 104 years old. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 28 ft (taller than 80.9% in MT)
Dam Length340 ft
Dam TypeEarth
Max Storage21.4K acre-ft
Normal Storage7.6K acre-ft
Surface Area834 acres
Drainage Area22 sq mi
Max Discharge1,166 cfs
Year Completed1922 (104 years old)
NID IDMT00118

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

WHITETAIL WATER USERS ASSN

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Whitetail Dam?

Whitetail Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Whitetail Dam?

Whitetail Dam is owned by WHITETAIL WATER USERS ASSN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Whitetail Dam built?

Whitetail Dam was completed in 1922, making it 104 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 Whitetail Dam?

Whitetail Dam 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 Whitetail Dam?

Whitetail Dam has a dam height of 28 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.