Ray Detention Dam

SOUTH FORK WAGON PRONG BIG HOR· Washakie, Wyoming· Built 2003· Gravity·
Low Hazard Water Supply Federal Government

Key Takeaway

Ray Detention Dam is classified as low hazard in Wyoming. It was completed in 2003 and is 23 years old. Its primary use is water supply.

Physical Details

Dam Length528 ft
Dam TypeGravity
Max Storage100 acre-ft
Normal Storage51 acre-ft
Surface Area13 acres
Drainage Area1,349 sq mi
Max Discharge257 cfs
Year Completed2003 (23 years old)
NID IDWY01412

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: August 2, 2016
State Regulated: Yes
Regulatory Agency: SEO

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ray Detention Dam?

Ray Detention Dam 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 Ray Detention Dam?

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

When was Ray Detention Dam built?

Ray Detention Dam was completed in 2003, making it 23 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 Ray Detention Dam?

Ray Detention Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Ray Detention Dam last inspected?

Ray Detention Dam was last inspected on August 2, 2016. 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.