Finley Lake Dam

TR-CHAPARROSA CREEK· Zavala, Texas· Built 1939· Earth· 11 ft tall
Low Hazard Water Supply Private

Key Takeaway

Finley Lake Dam is classified as low hazard in Texas. It was completed in 1939 and is 87 years old. Its primary use is water supply.

Physical Details

Dam Height 11 ft (taller than 6.1% in TX)
Dam Length1,100 ft
Dam TypeEarth
Max Storage660 acre-ft
Normal Storage28 acre-ft
Surface Area14 acres
Drainage Area0 sq mi
Year Completed1939 (87 years old)
NID IDTX01812

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

FINLEY RANCH

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Finley Lake Dam?

Finley Lake 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 Finley Lake Dam?

Finley Lake Dam is owned by FINLEY RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Finley Lake Dam built?

Finley Lake Dam was completed in 1939, making it 87 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 Finley Lake Dam?

Finley Lake 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 Finley Lake Dam?

Finley Lake Dam has a dam height of 11 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.