Bitterroot No. 1

FOX DRAW TRIB OF ALKALI CREEK· Fremont, Wyoming· Built 1977· Earth· 33 ft tall
Low Hazard Irrigation Fish And Wildlife Pond Private

Key Takeaway

Bitterroot No. 1 is classified as low hazard in Wyoming. It was completed in 1977 and is 49 years old. Its primary use is irrigation.

Physical Details

Dam Height 33 ft (taller than 75.3% in WY)
Dam Length440 ft
Dam TypeEarth
Normal Storage24 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge1,312 cfs
Year Completed1977 (49 years old)
NID IDWY01510

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
Last Inspection: May 11, 2020
State Regulated: Yes
Regulatory Agency: SEO

Ownership

BITTERROOT RANCH LIMITED PARTNERSHIP

Private

Frequently Asked Questions

What is the hazard classification of Bitterroot No. 1?

Bitterroot No. 1 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 Bitterroot No. 1?

Bitterroot No. 1 is owned by BITTERROOT RANCH LIMITED PARTNERSHIP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bitterroot No. 1 built?

Bitterroot No. 1 was completed in 1977, making it 49 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 Bitterroot No. 1?

Bitterroot No. 1 serves the following purposes: Irrigation, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Bitterroot No. 1?

Bitterroot No. 1 has a dam height of 33 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.

When was Bitterroot No. 1 last inspected?

Bitterroot No. 1 was last inspected on May 11, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.

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.