Llano Grande Tank Dam

TR-CABALLO CREEK· McMullen, Texas· Built 1952· Earth· 12 ft tall
Low Hazard Private

Key Takeaway

Llano Grande Tank Dam is classified as low hazard in Texas. It was completed in 1952 and is 74 years old.

Physical Details

Dam Height 12 ft (taller than 7.4% in TX)
Dam Length1,290 ft
Dam TypeEarth
Max Storage72 acre-ft
Normal Storage25 acre-ft
Surface Area15 acres
Drainage Area0 sq mi
Year Completed1952 (74 years old)
NID IDTX03045

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: No

Ownership

BRISCOE RANCH INC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Llano Grande Tank Dam?

Llano Grande Tank 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 Llano Grande Tank Dam?

Llano Grande Tank Dam is owned by BRISCOE RANCH INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Llano Grande Tank Dam built?

Llano Grande Tank Dam was completed in 1952, making it 74 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Llano Grande Tank Dam?

Llano Grande Tank Dam has a dam height of 12 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.