Bethlehem Dam, located in Grafton, New Hampshire, stands as a concrete structure on the Ammonoosuc River, serving primarily for recreational purposes.
Wind
Humidity
Completed in 1926, this dam boasts a height of 29 feet and a length of 282 feet, with a storage capacity of 116 acre-feet. The dam's spillway, with a width of 140 feet, is of the uncontrolled type, capable of handling a maximum discharge of 17,080 cubic feet per second.
Despite being privately owned, Bethlehem Dam falls under the regulatory oversight of the NHDES Dam Bureau, ensuring that it is subject to state permitting, inspection, and enforcement. Classified as low hazard potential with a moderate risk assessment, the dam's condition is currently unrated. With its picturesque location and historical significance, Bethlehem Dam serves as a vital component in the preservation and management of water resources in the region, attracting water resource and climate enthusiasts alike to marvel at its engineering marvel.
Year Completed |
1926 |
Dam Length |
282 |
Dam Height |
29 |
River Or Stream |
AMMONOOSUC RIVER |
Primary Dam Type |
Concrete |
Surface Area |
5.5 |
Drainage Area |
96.6 |
Nid Storage |
116 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
29 |
| Location | Reservations | Toilets |
|---|---|---|
Haystack Road
|
||
Living Water Campground
|
||
Twin Mountain KOA
|
||
Fransted campground
|
||
Boy Scout's of America
|
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Garfield Ridge Shelter
|