Operating Basin No 6 Levee

OFF CH-GUADALUPE RIVER· Calhoun, Texas· Built 1968· Earth· 11 ft tall
Significant Hazard Other Private

Key Takeaway

Operating Basin No 6 Levee is classified as significant hazard in Texas. It was completed in 1968 and is 58 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 11 ft (taller than 6.1% in TX)
Dam Length10,450 ft
Dam TypeEarth
Max Storage1.0K acre-ft
Normal Storage586 acre-ft
Surface Area121 acres
Drainage Area0 sq mi
Year Completed1968 (58 years old)
NID IDTX03686

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: December 20, 2016
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

UNION CARBIDE CORPORATION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Operating Basin No 6 Levee?

Operating Basin No 6 Levee is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Operating Basin No 6 Levee?

Operating Basin No 6 Levee is owned by UNION CARBIDE CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Operating Basin No 6 Levee built?

Operating Basin No 6 Levee was completed in 1968, making it 58 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 Operating Basin No 6 Levee?

Operating Basin No 6 Levee serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Operating Basin No 6 Levee?

Operating Basin No 6 Levee 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.

When was Operating Basin No 6 Levee last inspected?

Operating Basin No 6 Levee was last inspected on December 20, 2016. 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.