White Plains Reservoir #1 Dam
Key Takeaway
White Plains Reservoir #1 Dam is classified as high hazard in New York. It was completed in 1900 and is 126 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 | 25 ft (taller than 69.7% in NY) |
| Dam Length | 360 ft |
| Dam Type | Concrete |
| Max Storage | 260 acre-ft |
| Normal Storage | 210 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 128 cfs |
| Year Completed | 1900 (126 years old) |
| NID ID | NY00055 |
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
CITY OF WHITE PLAINS
Local Government
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Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of White Plains Reservoir #1 Dam?
White Plains Reservoir #1 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 White Plains Reservoir #1 Dam?
White Plains Reservoir #1 Dam is owned by CITY OF WHITE PLAINS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was White Plains Reservoir #1 Dam built?
White Plains Reservoir #1 Dam was completed in 1900, making it 126 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 White Plains Reservoir #1 Dam?
White Plains Reservoir #1 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 White Plains Reservoir #1 Dam?
White Plains Reservoir #1 Dam has a dam height of 25 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 White Plains Reservoir #1 Dam last inspected?
White Plains Reservoir #1 Dam was last inspected on June 24, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.