Matawan Lake Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMonmouth
Nearest CityKeyport
River/StreamGravelly Brook
Coordinates40.41940, -74.22650

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length275 ft
Year Completed1923 (103 years old)

Storage & Hydraulics

NID Storage275 acre-ft
Max Storage275 acre-ft
Normal Storage200 acre-ft
Surface Area28 acres
Drainage Area2 sq mi
Max Discharge800 cfs

Ownership & Safety

PurposeRecreation
OwnerBorough of Matawan
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection03/29/2023
Emergency Action PlanYes

Identifiers

NID IDNJ00086
Federal IDNJ00086
More InfoState Dam Safety Program

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