Moose Pac Lake Dam

Moose Pac Lake Dam is an earth dam located in Morris County, New Jersey, built in 1918. It carries a Significant hazard potential classification and has a poor condition assessment.

About Moose Pac Lake Dam

The primary purpose of Moose Pac Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Narendra Patel (private). It impounds the East Branch Rockaway River near Jefferson.

The dam stands 10 feet tall and stretches 75 feet across, creates a reservoir covering 22 acres, has a storage capacity of 165 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1918, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/10/2025.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMorris
Nearest CityJefferson
River/StreamEast Branch Rockaway River
Coordinates41.02515, -74.50678

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length75 ft
Year Completed1918 (108 years old)

Storage & Hydraulics

NID Storage165 acre-ft
Normal Storage165 acre-ft
Surface Area22 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeRecreation
OwnerNarendra Patel
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection03/10/2025
Emergency Action PlanYes

Identifiers

NID IDNJ00281
Federal IDNJ00281
More InfoState Dam Safety Program

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