Mountain Creek Lake Dam

Mountain Creek Lake Dam is an earth dam located in Sussex County, New Jersey, built in 1984. It carries a High hazard potential classification and has a poor condition assessment.

About Mountain Creek Lake Dam

The primary purpose of Mountain Creek Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mountain Creek Resort (private). It impounds the Black Creek-tr near Vernon.

The dam stands 12 feet tall and stretches 260 feet across, creates a reservoir covering 1 acres, has a storage capacity of 100 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1984, the structure is 42 years 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 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 03/11/2025.

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 HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountySussex
Nearest CityVernon
River/StreamBlack Creek-tr
Coordinates41.18115, -74.50012

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length260 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage100 acre-ft
Normal Storage100 acre-ft
Surface Area1 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeRecreation
OwnerMountain Creek Resort
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection03/11/2025
Emergency Action PlanYes

Identifiers

NID IDNJ00840
Federal IDNJ00840
More InfoState Dam Safety Program

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