Bostwicks Pond Dam

Cohansey River· Cumberland, New Jersey· Built 1934· Earth· 13 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Bostwicks Pond Dam is classified as significant hazard in New Jersey. It was completed in 1934 and is 92 years old. 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 Length730 ft
Dam TypeEarth
Normal Storage52 acre-ft
Surface Area40 acres
Drainage Area8 sq mi
Max Discharge2,952 cfs
Year Completed1934 (92 years old)
NID IDNJ00039

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: February 22, 2022
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Bostwick Lake Commission

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Bostwicks Pond Dam?

Bostwicks 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 Bostwicks Pond Dam?

Bostwicks Pond Dam is owned by Bostwick Lake Commission (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bostwicks Pond Dam built?

Bostwicks Pond Dam was completed in 1934, making it 92 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 Bostwicks Pond Dam?

Bostwicks 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 Bostwicks Pond Dam?

Bostwicks 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 Bostwicks Pond Dam last inspected?

Bostwicks Pond Dam was last inspected on February 22, 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.