Robinhoodpark Reservoir Dam Reservoir Report

Last Updated: December 15, 2025

Robinhoodpark Reservoir Dam, located in Keene, New Hampshire, is a vital structure owned and regulated by the local government for recreation purposes.


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Summary

The dam was completed in 1872 and stands at a height of 18 feet, with a length of 430 feet, creating a reservoir with a storage capacity of 83.7 acre-feet. Situated on TR Beaver Brook, the dam's primary purpose is recreation, offering a surface area of 7 acres for outdoor activities.

Despite its age, Robinhoodpark Reservoir Dam has been well-maintained, with a satisfactory condition assessment as of August 2017. The dam poses a high hazard potential due to its location and design, with a moderate risk assessment rating. Regular inspections are conducted every two years to ensure the dam's safety, with the last inspection taking place in May 2019. The dam is state-regulated by the NHDES Dam Bureau, with permitting, inspection, and enforcement measures in place to safeguard the surrounding community and environment.

Enthusiasts of water resources and climate will appreciate the historical significance and importance of Robinhoodpark Reservoir Dam in providing recreational opportunities while ensuring the safety and integrity of the surrounding area. This earth dam, with a buttress core type, serves as a testament to the engineering achievements of the past, highlighting the balance between human needs and environmental protection in managing water resources. As climate change continues to impact water systems, the responsible stewardship of dams like Robinhoodpark Reservoir Dam becomes increasingly crucial for sustainable water management in the face of evolving climate challenges.

Year Completed

1872

Dam Length

430

Dam Height

18

River Or Stream

TR BEAVER BROOK

Primary Dam Type

Earth

Surface Area

7

Drainage Area

0.21

Nid Storage

83.7

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

18
       
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.