Pearley Terrill Dam, located in Pittsburg, New Hampshire, is a state-regulated structure on the West Branch Indian Stream.
Wind
Humidity
Completed in 1969, this earth dam stands at 14 feet tall and stretches 330 feet in length, primarily serving the purpose of recreation. With a normal storage capacity of 277 acre-feet and a maximum capacity of 336 acre-feet, the dam covers a surface area of 60 acres and drains an area of 4.65 square miles.
Despite being classified as having low hazard potential, the condition assessment of Pearley Terrill Dam is rated as fair. The last inspection in October 2016 revealed its moderate risk level, prompting a six-year inspection frequency. While the dam has not experienced any major modifications in recent years, its emergency action plan (EAP) status, inundation maps, and risk management measures remain unspecified. With its location in the Coos County of New Hampshire, this dam is under the regulatory oversight of the NHDES Dam Bureau, ensuring its adherence to state permitting, inspection, and enforcement protocols. For water resource and climate enthusiasts, Pearley Terrill Dam provides an intriguing case study in dam management and risk assessment within the beautiful landscapes of northern New Hampshire.
Year Completed |
1969 |
Dam Length |
330 |
Dam Height |
14 |
River Or Stream |
WEST BRANCH INDIAN STREAM |
Primary Dam Type |
Earth |
Surface Area |
60 |
Drainage Area |
4.65 |
Nid Storage |
336 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |
| Location | Reservations | Toilets |
|---|---|---|
Deer Mountain Campground
|
||
Deer Mountain
|
||
Lake Francis State Park
|