Amwell #2 Dam

Alexanken Creek-TR· Hunterdon, New Jersey· Earth· 19 ft tall
Significant Hazard Recreation Private

Key Takeaway

Amwell #2 Dam is classified as significant hazard in New Jersey. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 19 ft (taller than 70% in NJ)
Dam Length285 ft
Dam TypeEarth
Normal Storage69 acre-ft
Surface Area12 acres
Drainage Area1 sq mi
Max Discharge223 cfs
NID IDNJ00522

Safety Information

Significant Hazard

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?

Emergency Action Plan: Yes
Last Inspection: October 12, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Amwell Valley Conservancy

Private

Nearby Dams

Amwell No. 1 Dam

Hunterdon, NJ

Significant Hazard 22 ft

Amwell No. 3 Dam

Hunterdon, NJ

Significant Hazard 26 ft

Sullivan Pond Dam

Hunterdon, NJ

High Hazard 19 ft

Lambertville #2 Dam

Hunterdon, NJ

High Hazard 17 ft

Stony Brook W.S. Site 11 (Amwell) Dam

Hunterdon, NJ

Significant Hazard 22 ft

Village Two At New Hope

Bucks, PA

Unknown 41 ft

Solebury Farm

Bucks, PA

High Hazard 27 ft

Canes Dam

Hunterdon, NJ

Low Hazard 10 ft

Frequently Asked Questions

What is the hazard classification of Amwell #2 Dam?

Amwell #2 Dam 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 Amwell #2 Dam?

Amwell #2 Dam is owned by Amwell Valley Conservancy (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Amwell #2 Dam?

Amwell #2 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 Amwell #2 Dam?

Amwell #2 Dam has a dam height of 19 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 Amwell #2 Dam last inspected?

Amwell #2 Dam was last inspected on October 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.