Highlands Reservoir Dam
Key Takeaway
Highlands Reservoir Dam is classified as high hazard in Texas. It was completed in 1944 and is 82 years old. Its primary use is water supply. 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 | 20 ft (taller than 33.5% in TX) |
| Dam Length | 34,700 ft |
| Dam Type | Earth |
| Max Storage | 5.8K acre-ft |
| Normal Storage | 1.9K acre-ft |
| Surface Area | 837 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 698 cfs |
| Year Completed | 1944 (82 years old) |
| NID ID | TX03414 |
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
SAN JACINTO RIVER AUTHORITY
Local Government
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High Hazard 66 ftFrequently Asked Questions
What is the hazard classification of Highlands Reservoir Dam?
Highlands 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 Highlands Reservoir Dam?
Highlands Reservoir Dam is owned by SAN JACINTO RIVER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Highlands Reservoir Dam built?
Highlands Reservoir Dam was completed in 1944, making it 82 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 Highlands Reservoir Dam?
Highlands Reservoir Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Highlands Reservoir Dam?
Highlands Reservoir Dam has a dam height of 20 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 Highlands Reservoir Dam last inspected?
Highlands Reservoir Dam was last inspected on October 19, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.