Mt. Kemble Lake Dam

Mt. Kemble Lake Dam is an earth dam located in Morris County, New Jersey, built in 1928. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Mt. Kemble Lake Dam

The primary purpose of Mt. Kemble Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by The Lakeshore Company (private). It impounds the Primrose Brook-tr.

The dam stands 36 feet tall and stretches 285 feet across, creates a reservoir covering 13 acres, has a storage capacity of 118 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1928, the structure is well-established, with more than 75 years of service.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/09/2023.

At 36 feet, this dam is taller than 83% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMorris
River/StreamPrimrose Brook-tr
Coordinates40.74003, -74.52657

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Height36 ft
Dam Length285 ft
Year Completed1928 (98 years old)

Storage & Hydraulics

NID Storage118 acre-ft
Normal Storage118 acre-ft
Surface Area13 acres
Drainage Area0 sq mi
Max Discharge500 cfs

Ownership & Safety

PurposeRecreation
OwnerThe Lakeshore Company
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection10/09/2023
Emergency Action PlanYes

Identifiers

NID IDNJ00363
Federal IDNJ00363
More InfoState Dam Safety Program

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