Canistear Reservoir #2 Dam

Canistear Reservoir #2 Dam is a masonry dam located in Sussex County, New Jersey, built in 1896. It carries a High hazard potential classification and has a fair condition assessment.

About Canistear Reservoir #2 Dam

The primary purpose of Canistear Reservoir #2 Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Newark, Department Of Water And Sewer Utilities (local government). It impounds the Pacock Brook.

The dam stands 44 feet tall and stretches 330 feet across, creates a reservoir covering 302 acres, has a storage capacity of 7,400 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1896, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/01/2024.

At 44 feet, this dam is taller than 90% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Jersey dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountySussex
River/StreamPacock Brook
Coordinates41.11488, -74.49378

Physical Characteristics

Dam TypeMasonry
NID Height44 ft
Dam Height44 ft
Dam Length330 ft
Year Completed1896 (130 years old)

Storage & Hydraulics

NID Storage7,400 acre-ft
Normal Storage7,400 acre-ft
Surface Area302 acres
Drainage Area5 sq mi

Ownership & Safety

PurposeWater Supply
OwnerCity of Newark, Department of Water and Sewer Utilities
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/01/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00561
Federal IDNJ00561
More InfoState Dam Safety Program

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