Tully Pond Dam Reservoir Report

Last Updated: December 12, 2025

Tully Pond Dam in Orange, Massachusetts is a local government-owned structure that serves the primary purpose of recreation.


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Summary

Completed in 1973, this earth dam stands at a height of 20 feet and has a hydraulic height of 16 feet. It spans 140 feet in length, with a storage capacity of 480 acre-feet and a surface area of 65 acres. The dam is situated on an unnamed tributary of the West Branch of Tully River and is regulated by the Department of Conservation and Recreation.

Despite being classified as having a significant hazard potential, Tully Pond Dam is currently assessed to be in fair condition. It undergoes inspections every 5 years, with the last assessment conducted in November 2016. While the dam has a moderate risk level, there are no specific risk management measures or emergency action plans in place as of the latest data update in July 2018. With its proximity to a residential area, ensuring the structural integrity and safety of Tully Pond Dam remains a priority for local authorities and stakeholders in the region.

Water resource and climate enthusiasts interested in the management and maintenance of dams will find Tully Pond Dam an intriguing case study. Its critical role in providing recreational opportunities while also posing potential risks highlights the delicate balance between human activities and environmental protection. As discussions around dam safety and resilience continue to evolve, the lessons learned from Tully Pond Dam can offer valuable insights for sustainable water resource management practices in the face of changing climate conditions.

Year Completed

1973

Dam Length

140

Dam Height

20

River Or Stream

UNNAMED TRIBUTARY OF WEST BRANCH OF TULLY RIVER

Primary Dam Type

Earth

Surface Area

65

Hydraulic Height

16

Drainage Area

1.33

Nid Storage

480

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

20
       
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.