Conway Electric Dam Reservoir Report
Nearby: Deerfield No. 2 Conway Recreation Dam
Last Updated: December 5, 2025
Conway Electric Dam, located in Conway, Massachusetts, was completed in 1898 and serves as a vital resource for fish and wildlife pond management.
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Summary
With a height of 77 feet and a hydraulic height of 70 feet, this earth dam plays a crucial role in maintaining a normal storage capacity of 5 acre-feet and a total storage of 120 acre-feet. The dam is situated on the South River and falls under the regulatory jurisdiction of the Department of Conservation and Recreation in Massachusetts.
Despite its historical significance, Conway Electric Dam is currently assessed as being in poor condition, with a low hazard potential. The dam's last inspection was conducted in May 2015, and it is scheduled for inspections every 10 years. While the risk assessment indicates a moderate risk level, there is no Emergency Action Plan (EAP) prepared for potential incidents. It is essential for stakeholders and regulators to address the dam's deteriorating condition and implement risk management measures to ensure the safety and integrity of this important structure.
In addition to its primary purpose of fish and wildlife pond management, Conway Electric Dam also supports recreational activities in the area. With its proximity to the New England District of the US Army Corps of Engineers and the supervision of the Department of Conservation and Recreation, there is a concerted effort to balance conservation efforts with public enjoyment of the dam and its surrounding environment. As water resource and climate enthusiasts, it is important to recognize the role of Conway Electric Dam in preserving the ecological balance of the South River while also prioritizing safety and maintenance for future generations to enjoy.
Year Completed |
1898 |
Dam Length |
265 |
Dam Height |
77 |
River Or Stream |
SOUTH RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
70 |
Drainage Area |
26 |
Nid Storage |
120 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
77 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Deerfield River Near West Deerfield
|
340cfs |
South River Near Conway
|
13cfs |
Connecticut River At Montague City
|
4540cfs |
North River At Shattuckville
|
42cfs |
Deerfield River At Charlemont
|
761cfs |
Green River Near Colrain
|
26cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Conway Electric Dam
Mt Sugarloaf State Reservation
Conway State Forest
Mount Toby Highlands State Natural Area
Hawley State Natural Area
Mill River Recreation Area