Allamuchy Pond Dam

Pequest River-TR· Warren, New Jersey· Earth· 13 ft tall
Significant Hazard Recreation State Government

Key Takeaway

Allamuchy Pond 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 13 ft (taller than 39.5% in NJ)
Dam Length175 ft
Dam TypeEarth
Normal Storage280 acre-ft
Surface Area68 acres
Drainage Area2 sq mi
Max Discharge113 cfs
NID IDNJ00501

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: May 18, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Division of Parks and Forestry

State Government

Nearby Dams

Deer Park Pond Dam

Warren, NJ

Significant Hazard 19 ft

Saxton Falls Dam

Morris, NJ

High Hazard 16 ft

Frenches Pond Dam

Sussex, NJ

High Hazard 13 ft

Reservoir Lake Dam

Sussex, NJ

High Hazard 12 ft

Lake Tranquility Dam

Sussex, NJ

High Hazard 14 ft

Panther Valley Village # 6 Dam

Warren, NJ

Significant Hazard 23 ft

Upper Waterloo Lake Dam

Sussex, NJ

Low Hazard 9 ft

Hackettstown Res. Dam

Morris, NJ

High Hazard 38 ft

Frequently Asked Questions

What is the hazard classification of Allamuchy Pond Dam?

Allamuchy Pond 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 Allamuchy Pond Dam?

Allamuchy Pond Dam is owned by Division of Parks and Forestry (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Allamuchy Pond Dam?

Allamuchy 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 Allamuchy Pond Dam?

Allamuchy 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 Allamuchy Pond Dam last inspected?

Allamuchy Pond Dam was last inspected on May 18, 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.