Calaveras Creek WS SCS Site 3 Dam

CALAVERAS CREEK· Bexar, Texas· Built 1954· Earth· 41 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Calaveras Creek WS SCS Site 3 Dam is classified as high hazard in Texas. It was completed in 1954 and is 72 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 41 ft (taller than 86.3% in TX)
Dam Length2,580 ft
Dam TypeEarth
Max Storage3.3K acre-ft
Normal Storage122 acre-ft
Surface Area55 acres
Drainage Area5 sq mi
Max Discharge15,450 cfs
Year Completed1954 (72 years old)
NID IDTX01450

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: April 26, 2021
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

ALAMO SWCD;SAN ANTONIO RIVER AUTHORITY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Calaveras Creek WS SCS Site 3 Dam?

Calaveras Creek WS SCS Site 3 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 Calaveras Creek WS SCS Site 3 Dam?

Calaveras Creek WS SCS Site 3 Dam is owned by ALAMO SWCD;SAN ANTONIO RIVER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Calaveras Creek WS SCS Site 3 Dam built?

Calaveras Creek WS SCS Site 3 Dam was completed in 1954, making it 72 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 Calaveras Creek WS SCS Site 3 Dam?

Calaveras Creek WS SCS Site 3 Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Calaveras Creek WS SCS Site 3 Dam?

Calaveras Creek WS SCS Site 3 Dam has a dam height of 41 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 Calaveras Creek WS SCS Site 3 Dam last inspected?

Calaveras Creek WS SCS Site 3 Dam was last inspected on April 26, 2021. 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.