Rocky Brook Reservoir Reservoir Report

Last Updated: December 6, 2025

Rocky Brook Reservoir, located in South Kingstown, Rhode Island, is a significant earth dam structure with a height of 8 feet and a hydraulic height of 6 feet.


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Summary

The reservoir has a storage capacity of 35 acre-feet and a surface area of 7 acres, serving as a vital water resource in the region. Managed by the local government, the dam is regulated by the state and undergoes regular inspections and enforcement to ensure its safety and functionality.

With a primary purpose classified as "Other," Rocky Brook Reservoir plays a crucial role in managing water resources in the area. The dam, constructed on the Rocky Brook stream, has a drainage area of 3 square miles and a normal storage capacity of 25 acre-feet. Despite being categorized as having a significant hazard potential, the dam's condition assessment is currently listed as "Not Rated," highlighting the need for further evaluation and risk management measures to be implemented.

As water resource and climate enthusiasts, the intricate details of Rocky Brook Reservoir's design, dimensions, and regulatory oversight provide a deeper understanding of its importance in the local ecosystem. The reservoir's association with the New England District and its location within the beautiful Washington County of Rhode Island make it a focal point for studying the intersection of human infrastructure and environmental conservation. Advocating for the sustainable management of this vital water source is essential for safeguarding the region's ecological balance and ensuring long-term water security for its residents.

Dam Length

300

Dam Height

8

River Or Stream

ROCKY BROOK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

6

Drainage Area

3

Nid Storage

35

Structural Height

8

Hazard Potential

Significant

Nid Height

8
       
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.