Harris Pond Reservoir Report

Last Updated: December 6, 2025

Harris Pond, located in West Warwick, Rhode Island, is a picturesque body of water formed by a rockfill dam on the Pawtuxet River-North Branch.


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Summary

Built in 1882, this dam stands at 24 feet tall and has a storage capacity of 80 acre-feet, with a normal storage level of 60 acre-feet. The reservoir covers an area of 8 acres and drains a watershed of 102 square miles, with a maximum discharge capacity of 6,000 cubic feet per second.

Despite its historical significance and scenic beauty, Harris Pond is currently rated as having a low hazard potential and a poor condition assessment. Its last inspection in May 2018 revealed areas of concern, prompting a closer look at the dam's structural integrity and safety measures. While the dam does not fall under federal jurisdiction, local government authorities are responsible for its inspection and maintenance to ensure the safety of nearby communities and the sustainability of the water resource.

For water resource and climate enthusiasts, Harris Pond serves as a reminder of the importance of proper dam management and maintenance in the face of changing environmental conditions. As climate patterns shift and extreme weather events become more frequent, the need to assess and improve the resilience of aging infrastructure like Harris Pond dam becomes increasingly urgent. By staying informed and involved in local water resource management efforts, enthusiasts can help ensure the long-term viability of vital water sources like Harris Pond for future generations.

Year Completed

1882

Dam Length

280

Dam Height

24

River Or Stream

PAWTUXET RIVER-NORTH BRANCH

Primary Dam Type

Rockfill

Surface Area

8

Hydraulic Height

19

Drainage Area

102

Nid Storage

80

Structural Height

24

Hazard Potential

Low

Nid Height

24
       
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.