Mason Lake Dam
Key Takeaway
Mason Lake Dam is classified as low hazard in Texas. It was completed in 1977 and is 49 years old. Its primary use is recreation.
Physical Details
| Dam Height | 15 ft (taller than 15.4% in TX) |
| Dam Length | 150,200 ft |
| Dam Type | Earth |
| Max Storage | 3.8K acre-ft |
| Normal Storage | 2.1K acre-ft |
| Surface Area | 485 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 25,000 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | TX04799 |
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
EASTMAN CHEMICAL COMPANY
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Mason Lake Dam?
Mason 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 Mason Lake Dam?
Mason Lake Dam is owned by EASTMAN CHEMICAL COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mason Lake Dam built?
Mason Lake Dam was completed in 1977, making it 49 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 Mason Lake Dam?
Mason Lake Dam serves the following purposes: Recreation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mason Lake Dam?
Mason Lake Dam has a dam height of 15 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 Mason Lake Dam last inspected?
Mason Lake Dam was last inspected on November 15, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.