Pontook Reservoir Dam, located in Milan, New Hampshire, is a state-regulated hydroelectric facility on the Androscoggin River.
Wind
Humidity
Built in 1909 by designer E. C. Jordan, this concrete, rockfill, and timber crib dam stands at a height of 15 feet and has a length of 399 feet. With a storage capacity of 883 acre-feet and a surface area of 280 acres, Pontook Reservoir Dam serves multiple purposes including hydroelectric power generation and recreation.
Managed by the Federal Energy Regulatory Commission, Pontook Reservoir Dam boasts a spillway width of 312 feet and six vertical lift outlet gates. Despite its low hazard potential, the dam is subject to regular state inspections and has a moderate risk assessment rating. While the condition assessment is not available, emergency action plans have been prepared and updated to ensure the safety of nearby communities in case of flooding or other emergencies.
For water resource and climate enthusiasts, Pontook Reservoir Dam serves as an important example of how a historic dam continues to play a key role in both energy production and local recreation while being actively regulated and inspected to ensure safety and environmental protection. Its location on the Androscoggin River adds to its significance in the region, making it a site of interest for those interested in water management and the intersection of infrastructure and natural resources.
Year Completed |
1909 |
Dam Length |
399 |
Dam Height |
15 |
River Or Stream |
Androscoggin River |
Surface Area |
280 |
Drainage Area |
1214 |
Nid Storage |
883 |
Outlet Gates |
Vertical Lift - 6 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Upper Ammonoosuc River Near Groveton
|
257cfs |
Androscoggin River At Errol
|
1500cfs |
Androscoggin River Near Gorham
|
2140cfs |
Diamond River Near Wentworth Location
|
71cfs |
Connecticut River At North Stratford
|
534cfs |
Wild River At Gilead
|
48cfs |
| Location | Reservations | Toilets |
|---|---|---|
Milan Hill State Park
|
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Rogers Ledge Campsite
|
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Mollidgewock State Park
|
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Percy Loop Tentsite
|
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Unknown Pond Campsite
|
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Unknown Pond Tentsite
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