Straits Pond Dam Reservoir Report

Last Updated: December 20, 2025

Straits Pond Dam, located in Hull, Massachusetts, is a concrete structure with a height of 12 feet and a length of 80 feet.


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Summary

Built in 1908, the dam serves as a crucial water resource for the area, with a storage capacity of 950 acre-feet and a normal storage level of 302 acre-feet. The dam is regulated by the Department of Conservation and Recreation and is inspected regularly to ensure its structural integrity.

The dam poses a significant hazard potential, with a risk assessment rating of moderate (3). Despite this, the condition assessment in 2015 deemed the dam to be in satisfactory condition. The dam's spillway type is uncontrolled, with a surface area of 97.1 acres and a drainage area of 0.69 square miles. The dam's primary purpose is listed as 'Other', and it is associated with a tributary of the Weir River.

Overall, Straits Pond Dam plays a vital role in the local water resource management system in Norfolk County, Massachusetts. With its historical significance, regulated maintenance, and risk assessment measures in place, the dam continues to serve as a key infrastructure for water supply and climate resilience in the region.

Year Completed

1908

Dam Length

80

Dam Height

12

River Or Stream

TRIBUTARY OF WEIR RIVER

Primary Dam Type

Concrete

Surface Area

97.1

Hydraulic Height

12

Drainage Area

0.69

Nid Storage

950

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

12
       
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.