Hal Koop Reservoir Dam

OFF CH-LAVACA RIVER· Jackson, Texas· Built 1982· Earth· 10 ft tall
Low Hazard Irrigation Private

Key Takeaway

Hal Koop Reservoir Dam is classified as low hazard in Texas. It was completed in 1982 and is 44 years old. Its primary use is irrigation.

Physical Details

Dam Height 10 ft (taller than 3.8% in TX)
Dam Length7,180 ft
Dam TypeEarth
Max Storage640 acre-ft
Normal Storage480 acre-ft
Surface Area80 acres
Drainage Area0 sq mi
Year Completed1982 (44 years old)
NID IDTX05866

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
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

MRS ROBINSON

Private

Frequently Asked Questions

What is the hazard classification of Hal Koop Reservoir Dam?

Hal Koop Reservoir Dam 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 Hal Koop Reservoir Dam?

Hal Koop Reservoir Dam is owned by MRS ROBINSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hal Koop Reservoir Dam built?

Hal Koop Reservoir Dam was completed in 1982, making it 44 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 Hal Koop Reservoir Dam?

Hal Koop Reservoir Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hal Koop Reservoir Dam?

Hal Koop Reservoir Dam has a dam height of 10 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.

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.