Lake Telemark Dam

Lake Telemark Dam is an earth dam located in Morris County, New Jersey, built in 1924. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Lake Telemark Dam

The primary purpose of Lake Telemark Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Telemark Country Club (private). It impounds the Hibernia Brook.

The dam stands 11 feet tall and stretches 375 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1924, 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 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 03/15/2024.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMorris
River/StreamHibernia Brook
Coordinates40.95897, -74.50130

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length375 ft
Year Completed1924 (102 years old)

Storage & Hydraulics

NID Storage90 acre-ft
Max Storage90 acre-ft
Normal Storage70 acre-ft
Surface Area11 acres
Drainage Area2 sq mi
Max Discharge59 cfs

Ownership & Safety

PurposeRecreation
OwnerLake Telemark Country Club
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection03/15/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00336
Federal IDNJ00336
More InfoState Dam Safety Program

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