Cooper Dam

SULPHUR RIVER· Delta, Texas· Built 1991· Earth· 79 ft tall

Key Takeaway

Cooper Dam is classified as high hazard in Texas. It was completed in 1991 and is 35 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 79 ft (taller than 98.6% in TX)
Dam Length28,072 ft
Dam TypeEarth
Max Storage797.3K acre-ft
Normal Storage310.8K acre-ft
Surface Area19,280 acres
Drainage Area476 sq mi
Max Discharge134,700 cfs
Year Completed1991 (35 years old)
NID IDTX08012

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: March 20, 2024
State Regulated: No

Ownership

USACE - Fort Worth District

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cooper Dam?

Cooper Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Cooper Dam?

Cooper Dam is owned by USACE - Fort Worth District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cooper Dam built?

Cooper Dam was completed in 1991, making it 35 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 Cooper Dam?

Cooper Dam serves the following purposes: Flood Risk Reduction, Fish And Wildlife Pond, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Cooper Dam?

Cooper Dam has a dam height of 79 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 Cooper Dam last inspected?

Cooper Dam was last inspected on March 20, 2024. 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.