Limerock Reservoir Reservoir Report

Last Updated: December 7, 2025

Limerock Reservoir is a local government-owned water resource located in Lincoln, Rhode Island, along the Moshassuck River.


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Summary

The reservoir serves multiple purposes, with a primary focus on water storage with a capacity of 210 acre-feet. The dam itself is an earth structure standing at 28 feet tall, designed to withstand high hazard potential and poor condition assessment.

Despite its poor condition, Limerock Reservoir plays a crucial role in water management and climate resilience in the region. It has a normal storage capacity of 180 acre-feet and a maximum discharge rate of 380 cubic feet per second. The reservoir covers a surface area of 15 acres and is regulated by the state with permits for inspection and enforcement to ensure safety and compliance. The high hazard potential underscores the importance of ongoing monitoring and maintenance to mitigate risks and protect the surrounding community.

With its strategic location and essential role in water storage and management, Limerock Reservoir stands as a critical infrastructure in Rhode Island. While facing challenges in its condition assessment, the reservoir's significance in providing water resources and climate resilience cannot be understated. Continued collaboration between local government agencies and stakeholders is essential to ensure the safety and sustainability of this vital water resource for the community and the environment.

Dam Length

200

Dam Height

28

River Or Stream

MOSHASSUCK RIVER

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

20

Drainage Area

1

Nid Storage

210

Structural Height

28

Hazard Potential

High

Nid Height

28
       
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.