Kemah Lake Dam

Kemah Lake Dam is an earth dam located in Sussex County, New Jersey, built in 1928. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Kemah Lake Dam

The primary purpose of Kemah Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Kemah Lake Property Owners Association (private). It impounds the Paulkinskill River-tr.

The dam stands 17 feet tall and stretches 240 feet across, creates a reservoir covering 102 acres, has a storage capacity of 608 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1928, the structure is well-established, with more than 75 years of service.

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 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 03/22/2024.

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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountySussex
River/StreamPaulkinskill River-tr
Coordinates41.11915, -74.79070

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Height17 ft
Dam Length240 ft
Year Completed1928 (98 years old)

Storage & Hydraulics

NID Storage608 acre-ft
Normal Storage608 acre-ft
Surface Area102 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeRecreation
OwnerKemah Lake Property Owners Association
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection03/22/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00268
Federal IDNJ00268
More InfoState Dam Safety Program

Nearby Dams