Hirsig No. 3

BRANCH OF NORTH BEAR CREEK· Laramie, Wyoming· Built 1975· Earth· 30 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Fish And Wildlife Pond Flood Risk Reduction Private

Key Takeaway

Hirsig No. 3 is classified as low hazard in Wyoming. It was completed in 1975 and is 51 years old. Its primary use is fire protection.

Physical Details

Dam Height 30 ft (taller than 63.1% in WY)
Dam Length820 ft
Dam TypeEarth
Max Storage253 acre-ft
Normal Storage19 acre-ft
Surface Area19 acres
Drainage Area5 sq mi
Max Discharge979 cfs
Year Completed1975 (51 years old)
NID IDWY01368

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 13, 2019
State Regulated: Yes
Regulatory Agency: SEO

Ownership

TRUE RANCHES LLC & WYO BOARD LAND COMM

Private

Nearby Dams

Hirsig Enl. of R. P. Allen No. 1

Laramie, WY

Low Hazard 25 ft

Hirsig No. 1

Laramie, WY

Low Hazard 28 ft

Hirsig No. 2

Laramie, WY

Low Hazard 28 ft

Hirsig No. 4

Laramie, WY

Low Hazard 27 ft

Hugh Mcdonald

Platte, WY

Low Hazard 37 ft

Jordan No. 1

Laramie, WY

Low Hazard 36 ft

Morrison No. 2

Platte, WY

Low Hazard 32 ft

Miller No. 2

Platte, WY

Low Hazard 29 ft

Frequently Asked Questions

What is the hazard classification of Hirsig No. 3?

Hirsig No. 3 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 Hirsig No. 3?

Hirsig No. 3 is owned by TRUE RANCHES LLC & WYO BOARD LAND COMM (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hirsig No. 3 built?

Hirsig No. 3 was completed in 1975, making it 51 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 Hirsig No. 3?

Hirsig No. 3 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hirsig No. 3?

Hirsig No. 3 has a dam height of 30 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 Hirsig No. 3 last inspected?

Hirsig No. 3 was last inspected on August 13, 2019. 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.