Rissler

TROUT CANYON CREEK OFFSTREAM· Natrona, Wyoming· Built 1951· Earth· 28 ft tall
Low Hazard Irrigation Private

Key Takeaway

Rissler is classified as low hazard in Wyoming. It was completed in 1951 and is 75 years old. Its primary use is irrigation.

Physical Details

Dam Height 28 ft (taller than 55% in WY)
Dam Length458 ft
Dam TypeEarth
Max Storage203 acre-ft
Normal Storage96 acre-ft
Surface Area17 acres
Drainage Area0 sq mi
Max Discharge2,497 cfs
Year Completed1951 (75 years old)
NID IDWY00318

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: June 17, 2020
State Regulated: Yes
Regulatory Agency: SEO

Ownership

FALLS RANCH C/O RICH MASON

Private

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Nicolaysen No. 2

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Frequently Asked Questions

What is the hazard classification of Rissler?

Rissler 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 Rissler?

Rissler is owned by FALLS RANCH C/O RICH MASON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Rissler built?

Rissler was completed in 1951, making it 75 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 Rissler?

Rissler 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 Rissler?

Rissler 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.

When was Rissler last inspected?

Rissler was last inspected on June 17, 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.