Hoague - Sprague
Key Takeaway
Hoague - Sprague is classified as significant hazard in New Hampshire. It was completed in 1906 and is 120 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 14 ft (taller than 42.1% in NH) |
| Dam Length | 350 ft |
| Dam Type | Timber Crib |
| Max Storage | 26 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 427 sq mi |
| Max Discharge | 19,562 cfs |
| Year Completed | 1906 (120 years old) |
| NID ID | NH00070 |
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
West Hopkinton Hydro, LLC
Private
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What is the hazard classification of Hoague - Sprague?
Hoague - Sprague 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 Hoague - Sprague?
Hoague - Sprague is owned by West Hopkinton Hydro, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hoague - Sprague built?
Hoague - Sprague was completed in 1906, making it 120 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 Hoague - Sprague?
Hoague - Sprague serves the following purposes: Hydroelectric, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hoague - Sprague?
Hoague - Sprague 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 Hoague - Sprague last inspected?
Hoague - Sprague was last inspected on July 20, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.