Lake Stockholm Dam

Branch of Pequannock River· Sussex, New Jersey· Built 1920· Earth· 16 ft tall
Significant Hazard Recreation Private

Key Takeaway

Lake Stockholm Dam is classified as significant hazard in New Jersey. It was completed in 1920 and is 106 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 16 ft (taller than 59.4% in NJ)
Dam Length630 ft
Dam TypeEarth
Normal Storage300 acre-ft
Surface Area33 acres
Drainage Area1 sq mi
Max Discharge303 cfs
Year Completed1920 (106 years old)
NID IDNJ00302

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: December 10, 2020
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Lake Stockholm Club Assoc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Stockholm Dam?

Lake Stockholm 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 Lake Stockholm Dam?

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

When was Lake Stockholm Dam built?

Lake Stockholm Dam was completed in 1920, making it 106 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 Lake Stockholm Dam?

Lake Stockholm 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 Lake Stockholm Dam?

Lake Stockholm Dam has a dam height of 16 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 Lake Stockholm Dam last inspected?

Lake Stockholm Dam was last inspected on December 10, 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.