Bonneville Reservoir

TURK DRAW· Fremont, Wyoming· Built 1941· Gravity·
Low Hazard Fire Protection Stock Or Small Fish Pond Federal Government

Key Takeaway

Bonneville Reservoir is classified as low hazard in Wyoming. It was completed in 1941 and is 85 years old. Its primary use is fire protection.

Physical Details

Dam Length580 ft
Dam TypeGravity
Max Storage156 acre-ft
Normal Storage58 acre-ft
Surface Area16 acres
Drainage Area4 sq mi
Year Completed1941 (85 years old)
NID IDWY01565

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: November 6, 2018
State Regulated: Yes
Regulatory Agency: SEO

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Bonneville Reservoir?

Bonneville Reservoir 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 Bonneville Reservoir?

Bonneville Reservoir is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bonneville Reservoir built?

Bonneville Reservoir was completed in 1941, making it 85 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 Bonneville Reservoir?

Bonneville Reservoir 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.

When was Bonneville Reservoir last inspected?

Bonneville Reservoir was last inspected on November 6, 2018. 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.