Gibbons No. 1

GIBBONS DRAW· Campbell, Wyoming· Built 1962· Earth· 29 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Gibbons No. 1 is classified as low hazard in Wyoming. It was completed in 1962 and is 64 years old. Its primary use is fire protection.

Physical Details

Dam Height 29 ft (taller than 59.6% in WY)
Dam Length310 ft
Dam TypeEarth
Max Storage96 acre-ft
Normal Storage51 acre-ft
Surface Area7 acres
Drainage Area2 sq mi
Year Completed1962 (64 years old)
NID IDWY00992

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: July 30, 2019
State Regulated: Yes
Regulatory Agency: SEO

Ownership

DONALD R. & MARY JO JOSLYN REV. TRUSTS

Private

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Frequently Asked Questions

What is the hazard classification of Gibbons No. 1?

Gibbons No. 1 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 Gibbons No. 1?

Gibbons No. 1 is owned by DONALD R. & MARY JO JOSLYN REV. TRUSTS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Gibbons No. 1 built?

Gibbons No. 1 was completed in 1962, making it 64 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 Gibbons No. 1?

Gibbons No. 1 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.

How tall is Gibbons No. 1?

Gibbons No. 1 has a dam height of 29 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 Gibbons No. 1 last inspected?

Gibbons No. 1 was last inspected on July 30, 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.