Paper Millpond Dam Reservoir Report

Last Updated: December 5, 2025

Paper Millpond Dam in Southbury, Connecticut, is a state-regulated concrete dam located on Eightmile Brook.


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Summary

With a height of 6 feet and a length of 150 feet, the dam serves various purposes, including providing surface area for recreational activities and maintaining a normal storage capacity of 0 acre-feet. The dam has a spillway width of 15 feet and a hazard potential categorized as significant, with a fair condition assessment as of April 2015.

Despite its fair condition, the dam at Paper Millpond poses a potential risk that requires regular inspections every five years. While the dam has not been modified in recent years, its emergency action plan was last revised in December 2015. The dam is under the jurisdiction of the Connecticut Department of Energy and Environmental Protection (DEEP) and is owned by the state, reflecting the importance of water resource management and climate resilience in the region. Enthusiasts interested in water resources and climate change mitigation efforts can find valuable insights in the data provided for Paper Millpond Dam.

Dam Length

150

Dam Height

6

River Or Stream

EIGHTMILE BROOK

Primary Dam Type

Concrete

Surface Area

8.3

Drainage Area

9.58

Hazard Potential

Significant

Nid Height

6
       
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.