Ashuelot Pond Dam

ASHUELOT RIVER· Sullivan, New Hampshire· Built 1872· Concrete· 13 ft tall
High Hazard Recreation Local Government

Key Takeaway

Ashuelot Pond Dam is classified as high hazard in New Hampshire. It was completed in 1872 and is 154 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 13 ft (taller than 36.5% in NH)
Dam Length190 ft
Dam TypeConcrete
Max Storage3.6K acre-ft
Normal Storage2.8K acre-ft
Surface Area360 acres
Drainage Area26 sq mi
Max Discharge1,610 cfs
Year Completed1872 (154 years old)
Year Modified1925
NID IDNH00237

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: July 12, 2022
State Regulated: Yes
Regulatory Agency: NH DES

Ownership

ASHUELOT POND DAM VILLAGE DISTRICT

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ashuelot Pond Dam?

Ashuelot Pond Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Ashuelot Pond Dam?

Ashuelot Pond Dam is owned by ASHUELOT POND DAM VILLAGE DISTRICT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Ashuelot Pond Dam built?

Ashuelot Pond Dam was completed in 1872, making it 154 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 Ashuelot Pond Dam?

Ashuelot Pond 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 Ashuelot Pond Dam?

Ashuelot Pond Dam has a dam height of 13 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 Ashuelot Pond Dam last inspected?

Ashuelot Pond Dam was last inspected on July 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.