Williamson Gss No.1

TR-WASHITA RIVER· Garvin, Oklahoma· Built 1976· Earth· 25 ft tall
Low Hazard Other Private

Key Takeaway

Williamson Gss No.1 is classified as low hazard in Oklahoma. It was completed in 1976 and is 50 years old. Its primary use is other.

Physical Details

Dam Height 25 ft (taller than 29.9% in OK)
Dam Length350 ft
Dam TypeEarth
Max Storage50 acre-ft
Normal Storage25 acre-ft
Surface Area7 acres
Max Discharge400 cfs
Year Completed1976 (50 years old)
NID IDOK21128

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: February 5, 2002
State Regulated: Yes
Regulatory Agency: OWRB

Ownership

JACK AND LINDA JUSTICE

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Williamson Gss No.1?

Williamson Gss 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 Williamson Gss No.1?

Williamson Gss No.1 is owned by JACK AND LINDA JUSTICE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Williamson Gss No.1 built?

Williamson Gss No.1 was completed in 1976, making it 50 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 Williamson Gss No.1?

Williamson Gss No.1 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Williamson Gss No.1?

Williamson Gss No.1 has a dam height of 25 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 Williamson Gss No.1 last inspected?

Williamson Gss No.1 was last inspected on February 5, 2002. 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.