Summit Lake Dam

Wallkill River· Sussex, New Jersey· Earth· 5 ft tall
Significant Hazard Recreation Private

Key Takeaway

Summit Lake 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 5 ft (taller than 0.1% in NJ)
Dam Length250 ft
Dam TypeEarth
Max Storage37 acre-ft
Normal Storage22 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Max Discharge101 cfs
NID IDNJ00920

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: July 15, 2020
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Summit Lake Club

Private

Nearby Dams

Lake Tamarack Dam

Sussex, NJ

High Hazard 10 ft

Lake Gerard Dam A

Sussex, NJ

High Hazard 16 ft

Lake Gerard Dike B

Sussex, NJ

High Hazard 15 ft

Lake Gerard Dike C

Sussex, NJ

High Hazard 12 ft

Fawn Lake Dam

Sussex, NJ

Significant Hazard 22 ft

Deer Trail Lake Dam

Sussex, NJ

Significant Hazard 28 ft

Lake Gerard Dam

Sussex, NJ

High Hazard 10 ft

Silver Lake Dam

Sussex, NJ

Low Hazard 11 ft

Frequently Asked Questions

What is the hazard classification of Summit Lake Dam?

Summit Lake 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 Summit Lake Dam?

Summit Lake Dam is owned by Summit Lake Club (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Summit Lake Dam?

Summit Lake 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 Summit Lake Dam?

Summit Lake Dam has a dam height of 5 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 Summit Lake Dam last inspected?

Summit Lake Dam was last inspected on July 15, 2020. 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.