Clark Pond West Dam Reservoir Report

Last Updated: December 16, 2025

Clark Pond West Dam, located in Auburn, New Hampshire, serves as a vital water supply structure managed by the local government.


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Summary

Built in 1811, this earth dam stands at a height of 9 feet and has a storage capacity of 100 acre-feet. With a spillway width of 57 feet and a maximum discharge of 1677 cubic feet per second, the dam plays a crucial role in managing water resources in the region.

Despite being classified as having a low hazard potential, the dam is rated in fair condition with a moderate risk assessment. Regular inspections are conducted by the New Hampshire Department of Environmental Services Dam Bureau, ensuring that the structure meets safety standards. The surrounding area boasts a surface area of 40 acres and a drainage area of 14.5 square miles, making it an important feature in the local hydrological landscape.

For water resource and climate enthusiasts, Clark Pond West Dam offers a fascinating case study in dam management and water supply infrastructure. As a key component in the region's water resource system, this historic earth dam continues to play a vital role in providing water to the community while maintaining a balance between water supply needs and environmental conservation. Its location in Rockingham County, New Hampshire, makes it a prime example of how dam structures contribute to sustainable water management practices in the face of changing climate conditions.

Year Completed

1811

Dam Length

280

Dam Height

9

River Or Stream

CLARK POND BROOK

Primary Dam Type

Earth

Surface Area

40

Drainage Area

14.5

Nid Storage

100

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

9
       
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.