Central Falls Reservoir Report

Last Updated: December 6, 2025

Central Falls, also known as Pantex Mill Pond, is a hydroelectric dam located in Providence, Rhode Island.


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Summary

Built in 1850, this rockfill dam spans 220 feet in length and stands at a height of 18 feet, with a storage capacity of 160 acre-feet. Situated on the Blackstone River, the dam serves the primary purpose of generating hydroelectric power.

Despite its age, Central Falls has a low hazard potential and a poor condition assessment. The dam has a normal storage capacity of 98 acre-feet and a drainage area of 473 square miles. The spillway width is 210 feet, and the dam has a maximum discharge capacity of 17,300 cubic feet per second. However, it is not state-regulated and does not have regular inspections or maintenance.

With its historical significance and important role in producing renewable energy, Central Falls offers a unique opportunity for water resource and climate enthusiasts to explore the intersection of hydroelectric power and environmental conservation. Its location on the Blackstone River provides a picturesque setting for learning about the challenges and opportunities associated with managing water resources in a changing climate.

Year Completed

1850

Dam Length

220

Dam Height

14

River Or Stream

BLACKSTONE RIVER

Primary Dam Type

Rockfill

Surface Area

20

Hydraulic Height

11

Drainage Area

473

Nid Storage

160

Structural Height

18

Hazard Potential

Low

Nid Height

18
       
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.