Lake Lefferts Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMonmouth
Nearest CityKeyport
River/StreamMatawan Creek
Coordinates40.41563, -74.23230

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length430 ft
Year Completed1928 (98 years old)

Storage & Hydraulics

NID Storage796 acre-ft
Max Storage796 acre-ft
Normal Storage650 acre-ft
Surface Area65 acres
Drainage Area6 sq mi
Max Discharge260 cfs

Ownership & Safety

PurposeRecreation
OwnerBorough of Matawan
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection11/27/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00089
Federal IDNJ00089
More InfoState Dam Safety Program

Nearby Dams

Matawan Lake Dam 0.4 mi High Tennents Brook Dam 5.7 mi Low Deep Run Dam 6.1 mi Low Upper Pond Dam 6.8 mi Significant Marlu Lake Dam 7.0 mi Low Duhernal Dam 7.2 mi Significant Riverton Basin Dam 7.6 mi Low Devoe Lake Dam 8.5 mi High Poricy Dam 8.7 mi Low Shadow Lake Dam 8.9 mi Significant