William Harris Reservoir Dam
Key Takeaway
William Harris Reservoir Dam is classified as high hazard in Texas. It was completed in 1947 and is 79 years old. Its primary use is other. 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 | 9 ft (taller than 2.7% in TX) |
| Dam Length | 37,000 ft |
| Dam Type | Earth |
| Max Storage | 15.3K acre-ft |
| Normal Storage | 7.0K acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 2 cfs |
| Year Completed | 1947 (79 years old) |
| NID ID | TX01753 |
Safety Information
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?
Ownership
THE DOW CHEMICAL COMPANY
Private
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Significant Hazard 9 ftFrequently Asked Questions
What is the hazard classification of William Harris Reservoir Dam?
William Harris Reservoir 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 William Harris Reservoir Dam?
William Harris Reservoir Dam is owned by THE DOW CHEMICAL COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was William Harris Reservoir Dam built?
William Harris Reservoir Dam was completed in 1947, making it 79 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 William Harris Reservoir Dam?
William Harris Reservoir Dam 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 William Harris Reservoir Dam?
William Harris Reservoir Dam has a dam height of 9 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 William Harris Reservoir Dam last inspected?
William Harris Reservoir Dam was last inspected on May 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.