E. Branch Horseshoe Dam Reservoir Report
Last Updated: December 11, 2025
E.
°F
°F
mph
Wind
%
Humidity
Summary
Branch Horseshoe Dam in Massachusetts is a state-regulated structure managed by the Department of Conservation and Recreation. The primary purpose of the dam is to serve as a Fish and Wildlife Pond, providing recreational opportunities and habitat for local wildlife. With a low hazard potential and fair condition assessment, the dam stands at a height of 31.5 feet with a hydraulic height of 14 feet, storing a normal capacity of 15,198 acre-feet of water over a surface area of 0.86 acres.
Located in Hardwick, Worcester County, E. Branch Horseshoe Dam plays a crucial role in managing water resources and supporting the surrounding ecosystem. With a drainage area of 43.7 square miles, the dam helps regulate the flow of water and provides a controlled release through an uncontrolled spillway. Despite being last inspected in 2009, the dam has a moderate risk assessment rating of 3, indicating a need for ongoing monitoring and potential risk management measures to ensure its continued safety and functionality for both wildlife and recreation enthusiasts in the area.
Overall, E. Branch Horseshoe Dam stands as a vital piece of infrastructure in Massachusetts, contributing to the conservation of natural resources and providing a space for outdoor activities. As climate change continues to impact water resources, the proper maintenance and regulation of dams like E. Branch Horseshoe become increasingly important in sustaining the delicate balance of ecosystems and ensuring the safety of surrounding communities. With its designated purpose and state oversight, this dam serves as a reminder of the interconnectedness between water management, climate resilience, and environmental conservation efforts.
Dam Height |
31.5 |
Primary Dam Type |
Earth |
Surface Area |
0.86 |
Hydraulic Height |
14 |
Drainage Area |
43.7 |
Nid Storage |
15198 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
E. Branch Horseshoe Dam
Dana Road, Petersham
Federated Women Club State Forest
Felton Field
Grenville Park
Petersham State Forest
Quabbin Park