Wampatuck Pond Dam Reservoir Report

Last Updated: December 19, 2025

Wampatuck Pond Dam, located in Hanson, Massachusetts, is a private dam primarily used for recreation purposes.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1695, this earth dam stands at a height of 12 feet and has a storage capacity of 705 acre-feet. Situated on Indian Head Brook, the dam has a significant hazard potential and is regulated by the Department of Conservation and Recreation in Massachusetts.

With a fair condition assessment as of 2012, Wampatuck Pond Dam poses moderate risk and undergoes inspections every five years. The dam features an uncontrolled spillway and a surface area of 115.2 acres, serving as a popular spot for water resource and climate enthusiasts in Plymouth County. Although the dam has a historic background, it continues to provide recreational opportunities while being mindful of its state-regulated status and potential risks.

As one of the oldest dams in the area, Wampatuck Pond Dam plays a crucial role in water management and flood control. Its earth structure and buttress core type contribute to its resilience, while its moderate risk level prompts ongoing monitoring and management measures. With its rich history and significant hazard potential, this dam serves as a key point of interest for those interested in water resources and climate impact within the region.

Year Completed

1695

Dam Length

330

Dam Height

12

River Or Stream

INDIAN HEAD BROOK

Primary Dam Type

Earth

Surface Area

115.2

Hydraulic Height

8

Drainage Area

2.5

Nid Storage

705

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.