New Street Reservoir Dam

Slippery Rock Brook· Passaic, New Jersey· Built 1925· Concrete· 26 ft tall
High Hazard Water Supply Local Government

Key Takeaway

New Street Reservoir Dam is classified as high hazard in New Jersey. It was completed in 1925 and is 101 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 26 ft (taller than 87% in NJ)
Dam Length449 ft
Dam TypeConcrete
Max Storage276 acre-ft
Normal Storage270 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Max Discharge126 cfs
Year Completed1925 (101 years old)
NID IDNJ00242

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 30, 2021
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Passaic Valley Water Commission

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of New Street Reservoir Dam?

New Street Reservoir Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates New Street Reservoir Dam?

New Street Reservoir Dam is owned by Passaic Valley Water Commission (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was New Street Reservoir Dam built?

New Street Reservoir Dam was completed in 1925, making it 101 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 New Street Reservoir Dam?

New Street Reservoir Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is New Street Reservoir Dam?

New Street Reservoir Dam has a dam height of 26 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 New Street Reservoir Dam last inspected?

New Street Reservoir Dam was last inspected on June 30, 2021. 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.