Canaan Street Lake Dam
Key Takeaway
Canaan Street Lake Dam is classified as low hazard in New Hampshire. It was completed in 1917 and is 109 years old. Its primary use is recreation.
Physical Details
| Dam Height | 14 ft (taller than 42.1% in NH) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 1.9K acre-ft |
| Normal Storage | 532 acre-ft |
| Surface Area | 291 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 668 cfs |
| Year Completed | 1917 (109 years old) |
| Year Modified | 1988 |
| NID ID | NH00922 |
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
CARDIGAN MOUNTAIN SCHOOL
Private
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Canaan Street Lake Dam?
Canaan Street Lake 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 Canaan Street Lake Dam?
Canaan Street Lake Dam is owned by CARDIGAN MOUNTAIN SCHOOL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Canaan Street Lake Dam built?
Canaan Street Lake Dam was completed in 1917, making it 109 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 Canaan Street Lake Dam?
Canaan Street Lake 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 Canaan Street Lake Dam?
Canaan Street Lake Dam has a dam height of 14 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 Canaan Street Lake Dam last inspected?
Canaan Street Lake Dam was last inspected on October 21, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.