Wapanucka

SANDY CR· Johnston, Oklahoma· Built 1950· Earth· 20 ft tall
Low Hazard Water Supply Local Government

Key Takeaway

Wapanucka is classified as low hazard in Oklahoma. It was completed in 1950 and is 76 years old. Its primary use is water supply.

Physical Details

Dam Height 20 ft (taller than 11.5% in OK)
Dam Length225 ft
Dam TypeEarth
Max Storage165 acre-ft
Normal Storage123 acre-ft
Surface Area16 acres
Max Discharge2,046 cfs
Year Completed1950 (76 years old)
NID IDOK02199

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 22, 2002
State Regulated: Yes
Regulatory Agency: OWRB

Ownership

TOWN OF WAPANUCKA

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wapanucka?

Wapanucka 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 Wapanucka?

Wapanucka is owned by TOWN OF WAPANUCKA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wapanucka built?

Wapanucka was completed in 1950, making it 76 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 Wapanucka?

Wapanucka serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wapanucka?

Wapanucka has a dam height of 20 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 Wapanucka last inspected?

Wapanucka was last inspected on July 22, 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.