National Properties INC

TR-ROCK CREEK· Cleveland, Oklahoma· Built 1960· Earth· 26 ft tall
Low Hazard Other Private

Key Takeaway

National Properties INC is classified as low hazard in Oklahoma. It was completed in 1960 and is 66 years old. Its primary use is other.

Physical Details

Dam Height 26 ft (taller than 38.9% in OK)
Dam Length720 ft
Dam TypeEarth
Max Storage110 acre-ft
Normal Storage50 acre-ft
Surface Area7 acres
Max Discharge3,600 cfs
Year Completed1960 (66 years old)
NID IDOK12574

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 24, 2010
State Regulated: Yes
Regulatory Agency: OWRB

Ownership

BILLY RAY & SHARON L NEFF

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of National Properties INC?

National Properties INC 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 National Properties INC?

National Properties INC is owned by BILLY RAY & SHARON L NEFF (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was National Properties INC built?

National Properties INC was completed in 1960, making it 66 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 National Properties INC?

National Properties INC 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 National Properties INC?

National Properties INC has a dam height of 26 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 National Properties INC last inspected?

National Properties INC was last inspected on August 24, 2010. 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.