Separation

SEPARATION CREEK· Sweetwater, Wyoming· Built 1927· Earth· 13 ft tall

Key Takeaway

Separation is classified as low hazard in Wyoming. It was completed in 1927 and is 99 years old. Its primary use is fire protection.

Physical Details

Dam Height 13 ft (taller than 7.6% in WY)
Dam Length50 ft
Dam TypeEarth
Max Storage759 acre-ft
Normal Storage592 acre-ft
Surface Area80 acres
Drainage Area1 sq mi
Max Discharge79 cfs
Year Completed1927 (99 years old)
NID IDWY00393

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 11, 2023
State Regulated: Yes
Regulatory Agency: SEO

Ownership

S DIAMOND RANCH, LLC

Private

Frequently Asked Questions

What is the hazard classification of Separation?

Separation 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 Separation?

Separation is owned by S DIAMOND RANCH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Separation built?

Separation was completed in 1927, making it 99 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 Separation?

Separation serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Other, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Separation?

Separation has a dam height of 13 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 Separation last inspected?

Separation was last inspected on August 11, 2023. 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.