Impoundment C-66
Key Takeaway
Impoundment C-66 is classified as low hazard in Texas. It was completed in 1989 and is 37 years old. Its primary use is tailings.
Physical Details
| Dam Height | 24 ft (taller than 47.7% in TX) |
| Dam Length | 6,000 ft |
| Dam Type | Earth |
| Max Storage | 1.9K acre-ft |
| Normal Storage | 464 acre-ft |
| Surface Area | 115 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 2,405 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | TX07304 |
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
LUMINANT POWER COMPANY LLC
Private
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Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Impoundment C-66?
Impoundment C-66 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 Impoundment C-66?
Impoundment C-66 is owned by LUMINANT POWER COMPANY LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Impoundment C-66 built?
Impoundment C-66 was completed in 1989, making it 37 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 Impoundment C-66?
Impoundment C-66 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Impoundment C-66?
Impoundment C-66 has a dam height of 24 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 Impoundment C-66 last inspected?
Impoundment C-66 was last inspected on November 3, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.