Rochester Reservoir Dike Spillway
Key Takeaway
Rochester Reservoir Dike Spillway is classified as high hazard in New Hampshire. It was completed in 1935 and is 91 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 | 2 ft |
| Dam Length | 20 ft |
| Dam Type | Earth |
| Max Storage | 790 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 56 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 383 cfs |
| Year Completed | 1935 (91 years old) |
| NID ID | NH01250 |
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 ROCHESTER
Local Government
Nearby Dams
Rochester Reservoir Dam
Strafford, NH
High Hazard 26 ftAyers Pond Dam
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Significant Hazard 18 ftBaxter Lake Main Dam
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Significant Hazard 19 ftBaxter Lake Center Dike
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Low Hazard 10 ftBerry Brook Reservoir Dam
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Low Hazard 28 ftBaxter Lake East Dike
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Low Hazard 10 ftKenneth Hill Pond Dam
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Significant Hazard 12 ftNippo Pond Dam
Strafford, NH
Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Rochester Reservoir Dike Spillway?
Rochester Reservoir Dike Spillway 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 Rochester Reservoir Dike Spillway?
Rochester Reservoir Dike Spillway is owned by CITY OF ROCHESTER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rochester Reservoir Dike Spillway built?
Rochester Reservoir Dike Spillway was completed in 1935, making it 91 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 Rochester Reservoir Dike Spillway?
Rochester Reservoir Dike Spillway 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 Rochester Reservoir Dike Spillway?
Rochester Reservoir Dike Spillway has a dam height of 2 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 Rochester Reservoir Dike Spillway last inspected?
Rochester Reservoir Dike Spillway was last inspected on July 13, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.