Robb Reservoir Dam
Key Takeaway
Robb Reservoir Dam is classified as low hazard in New Hampshire. It was completed in 1912 and is 114 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 36.5% in NH) |
| Dam Length | 120 ft |
| Dam Type | Concrete |
| Max Storage | 984 acre-ft |
| Normal Storage | 224 acre-ft |
| Surface Area | 97 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 1,674 cfs |
| Year Completed | 1912 (114 years old) |
| Year Modified | 1953 |
| NID ID | NH00240 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
NH FISH AND GAME DEPARTMENT
State Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Robb Reservoir Dam?
Robb Reservoir Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Robb Reservoir Dam?
Robb Reservoir Dam is owned by NH FISH AND GAME DEPARTMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Robb Reservoir Dam built?
Robb Reservoir Dam was completed in 1912, making it 114 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 Robb Reservoir Dam?
Robb Reservoir Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Robb Reservoir Dam?
Robb Reservoir Dam has a dam height of 13 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 Robb Reservoir Dam last inspected?
Robb Reservoir Dam was last inspected on March 31, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.