Willow Tank Dam
Key Takeaway
Willow Tank Dam is classified as low hazard in Texas. It was completed in 1972 and is 54 years old. Its primary use is water supply.
Physical Details
| Dam Height | 8 ft (taller than 1.1% in TX) |
| Dam Length | 1,100 ft |
| Dam Type | Earth |
| Max Storage | 67 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | TX05579 |
Safety Information
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?
Ownership
MATHEWS RANCH
Private
Nearby Dams
Chaparrosa Lake Dam
Zavala, TX
Low Hazard 26 ftTc Stricklin Lake Dam
Zavala, TX
Low Hazard 16 ftJohnson Lake Dam
Zavala, TX
Low Hazard 21 ftCharrosa Lake Dam
Zavala, TX
Low Hazard 20 ftWatkins Lake No 2 Dam
Zavala, TX
Low Hazard 18 ft4th July Tank Dam
Zavala, TX
Low Hazard 10 ftRutledge Lake Dam
Zavala, TX
Low Hazard 12 ftFinley Lake Dam
Zavala, TX
Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Willow Tank Dam?
Willow 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 Willow Tank Dam?
Willow Tank Dam is owned by MATHEWS RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Willow Tank Dam built?
Willow Tank Dam was completed in 1972, making it 54 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 Willow Tank Dam?
Willow Tank Dam 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 Willow Tank Dam?
Willow Tank Dam has a dam height of 8 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 Willow Tank Dam last inspected?
Willow Tank Dam was last inspected on April 30, 1986. Inspection dates indicate when a formal review occurred, not the results of that inspection.