Mud Pond Dam Reservoir Report
Last Updated: December 19, 2025
Mud Pond Dam, located in Dublin, New Hampshire, was completed in 1918 and serves as a recreational facility primarily used for water-based activities.
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Summary
The dam is classified as a concrete structure with a buttress core type, standing at a height of 18 feet and stretching 238 feet in length. It has a storage capacity of 500 acre-feet, with a normal storage level of 360 acre-feet and a surface area of 72 acres.
Managed by the local government, the dam is regulated by the New Hampshire Department of Environmental Services Dam Bureau, ensuring that it is inspected, permitted, and enforced to meet state safety standards. Despite being classified as having a low hazard potential, the dam's condition is assessed as fair, with a moderate risk rating of 3. Regular inspections are conducted every six years to monitor its structural integrity and safety measures.
For water resource and climate enthusiasts, Mud Pond Dam offers a fascinating glimpse into the intersection of human engineering and natural landscapes. Its presence along the Stanley Brook provides both recreational opportunities and a reminder of the importance of responsible dam management in mitigating potential risks and ensuring the safety of surrounding communities. With its historical significance and continued relevance in the region, Mud Pond Dam serves as a testament to the enduring relationship between water resources, infrastructure, and environmental stewardship.
Year Completed |
1918 |
Dam Length |
238 |
Dam Height |
18 |
River Or Stream |
STANLEY BROOK |
Primary Dam Type |
Concrete |
Surface Area |
72 |
Drainage Area |
13.35 |
Nid Storage |
500 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Mud Pond Dam
MacDowell Reservoir boat launch