Osborn Mills Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountySomerset
Nearest CityMadisonville
River/StreamPassaic River
Coordinates40.72118, -74.53207

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length250 ft

Storage & Hydraulics

NID Storage100 acre-ft
Max Storage100 acre-ft
Normal Storage30 acre-ft
Surface Area10 acres
Drainage Area10 sq mi
Max Discharge500 cfs

Ownership & Safety

PurposeWater Supply
OwnerNew Jersey-American Water Company
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection02/29/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00365
Federal IDNJ00365
More InfoState Dam Safety Program

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