Indian Dam

Indian Dam is an earth dam located in Monmouth County, New Jersey, built in 1937. It carries a Significant hazard potential classification and has a poor condition assessment.

About Indian Dam

The primary purpose of Indian Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Monmouth County Engineering (local government). It impounds the Indian Run.

The dam stands 17 feet tall and stretches 270 feet across, creates a reservoir covering 5 acres, has a storage capacity of 10 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1937, the structure is well-established, with more than 75 years 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/26/2024.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyMonmouth
River/StreamIndian Run
Coordinates40.18130, -74.58932

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Height17 ft
Dam Length270 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage10 acre-ft
Normal Storage10 acre-ft
Surface Area5 acres
Drainage Area1 sq mi
Max Discharge40 cfs

Ownership & Safety

PurposeWater Supply
OwnerMonmouth County Engineering
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection11/26/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00188
Federal IDNJ00188
More InfoState Dam Safety Program

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