Indian Mills Dam

Indian Mills Dam is an earth dam located in Burlington County, New Jersey, built in 1807. It carries a Significant hazard potential classification and has a fair condition assessment.

About Indian Mills Dam

The primary purpose of Indian Mills Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Township Of Shamong (local government). It impounds the Muskingum Brook.

The dam stands 11 feet tall and stretches 600 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 267 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1807, the structure is one of the older dams in the region, with over a century and a half of service.

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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/22/2023.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyBurlington
River/StreamMuskingum Brook
Coordinates39.79543, -74.74157

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length600 ft
Year Completed1807 (219 years old)

Storage & Hydraulics

NID Storage267 acre-ft
Max Storage267 acre-ft
Normal Storage160 acre-ft
Surface Area40 acres
Drainage Area5 sq mi
Max Discharge487 cfs

Ownership & Safety

PurposeRecreation
OwnerTownship of Shamong
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection09/22/2023
Emergency Action PlanYes

Identifiers

NID IDNJ00042
Federal IDNJ00042
More InfoState Dam Safety Program

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