Caesarville Pond Reservoir Report

Last Updated: December 6, 2025

Caesarville Pond in Johnston, Rhode Island, is a privately-owned water resource that plays a crucial role in the surrounding area.


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Summary

This earth dam structure on the Assapumpset Brook is regulated by the state and is subject to regular inspections, enforcement, and permitting processes to ensure its safety and compliance. With a maximum storage capacity of 15 acre-feet and a normal storage level of 8 acre-feet, Caesarville Pond covers a surface area of 5 acres and has a drainage area of 2 acres.

The dam at Caesarville Pond stands at a height of 5.8 feet with a hydraulic height of 3 feet, making it an essential component for flood control and water management in the region. The significant hazard potential of the dam highlights the importance of proper risk assessment and management measures. Despite not being rated for its condition, Caesarville Pond remains a key water resource for the community, with a spillway width of 30 feet and a maximum discharge capacity of 505 cubic feet per second.

As a water source for the area, Caesarville Pond is vital for both recreational and environmental purposes. It is essential for water enthusiasts and climate activists to monitor and support the maintenance and safety of this structure to ensure the continued availability and sustainability of this valuable resource.

Dam Height

5.8

River Or Stream

ASSAPUMPSET BROOK

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

3

Drainage Area

2

Nid Storage

15

Structural Height

6

Hazard Potential

Significant

Nid Height

6
       
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.