Carpi Lake Dam Reservoir Report

Last Updated: December 6, 2025

Carpi Lake Dam, located in West Milford, New Jersey, stands as a significant earth dam completed in 1938 for recreational purposes.


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Summary

With a height of 12.1 feet and a length of 300 feet, this dam plays a crucial role in providing a surface area of 13 acres for water recreation activities. The dam's storage capacity of 57 acre-feet serves the local community well, with a drainage area of 0.28 square miles and a maximum discharge of 205 cubic feet per second.

Managed by a private owner, Carpi Lake Dam is regulated by the New Jersey Department of Environmental Protection, ensuring that it meets state inspection and enforcement standards. The dam's condition assessment in May 2020 rated it as satisfactory, with a significant hazard potential. Although no spillway type or outlet gates are mentioned, the dam's emergency action plan is up to date, with regular inspections conducted every two years to maintain its safety and functionality.

Climate enthusiasts and water resource advocates can appreciate the historical significance and recreational value of Carpi Lake Dam, serving as a vital structure in the region's water management system. With its location on Morsetown Brook and a storage capacity of 57 acre-feet, this dam contributes to the local ecosystem while providing opportunities for water-based recreational activities. Continuous monitoring and maintenance ensure the dam's safety and readiness to mitigate potential risks, highlighting its importance in safeguarding both the environment and the community it serves.

Year Completed

1938

Dam Length

300

Dam Height

12.1

River Or Stream

Morsetown Brook

Primary Dam Type

Earth

Surface Area

13

Drainage Area

0.28

Nid Storage

57

Hazard Potential

Significant

Nid Height

12
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.