Hammonton Lake Dam

Hammonton Lake Dam is an earth dam located in Atlantic County, New Jersey, built in 1902. It carries a Significant hazard potential classification and has a poor condition assessment.

About Hammonton Lake Dam

The primary purpose of Hammonton Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Njdot (state). It impounds the Hammonton Creek near Wescoatwille.

The dam stands 13 feet tall and stretches 325 feet across, creates a reservoir covering 71 acres, has a storage capacity of 426 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1902, the structure is over a century old.

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 08/01/2023.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyAtlantic
Nearest CityWescoatwille
River/StreamHammonton Creek
Coordinates39.63110, -74.77122

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Height13 ft
Dam Length325 ft
Year Completed1902 (124 years old)

Storage & Hydraulics

NID Storage426 acre-ft
Normal Storage426 acre-ft
Surface Area71 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeRecreation
OwnerNJDOT
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection08/01/2023
Emergency Action PlanYes

Identifiers

NID IDNJ00476
Federal IDNJ00476
More InfoState Dam Safety Program

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