Rochester Sewage Lagoon Dam
Key Takeaway
Rochester Sewage Lagoon Dam is classified as significant hazard in New Hampshire. It was completed in 1980 and is 46 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 16% in NH) |
| Dam Length | 4,300 ft |
| Dam Type | Earth |
| Max Storage | 265 acre-ft |
| Normal Storage | 265 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1980 (46 years old) |
| NID ID | NH00571 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
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
Pickering Ponds Dam
Strafford, NH
Low Hazard 24 ftGonic Dam
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Significant Hazard 16 ftHatfields
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Significant Hazard 20 ftUpper City Dam
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Significant Hazard 14 ftWatson
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Low Hazard 12 ftRichardson Pond Dam
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Low Hazard 8 ftRochester Reservoir Dam
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High Hazard 26 ftBellamy Reservoir Dam
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High Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Rochester Sewage Lagoon Dam?
Rochester Sewage Lagoon Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Rochester Sewage Lagoon Dam?
Rochester Sewage Lagoon Dam is owned by CITY OF ROCHESTER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rochester Sewage Lagoon Dam built?
Rochester Sewage Lagoon Dam was completed in 1980, making it 46 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 Sewage Lagoon Dam?
Rochester Sewage Lagoon 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 Rochester Sewage Lagoon Dam?
Rochester Sewage Lagoon Dam has a dam height of 10 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 Sewage Lagoon Dam last inspected?
Rochester Sewage Lagoon Dam was last inspected on September 16, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.