Carp Road Dam Reservoir Report

Last Updated: December 5, 2025

Carp Road Dam, also known as Camp Pond or Mannhardt Pond, is a private dam located in Newtown, Connecticut.


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Summary

This earth dam serves primarily for recreational purposes and has a height of 12 feet and a length of 130 feet. The dam has a surface area of 5.5 acres and is situated on an unnamed river or stream in Fairfield County.

Despite its recreational use, Carp Road Dam has been flagged for significant hazard potential and poor condition assessment. With a risk assessment rating of moderate (3), the dam is in need of attention to ensure its safety and continued functionality. The last inspection date was in December 2019, with inspections occurring every 5 years.

As a significant water resource structure in the area, Carp Road Dam plays a crucial role in managing water levels and providing recreational opportunities. It is essential for water resource and climate enthusiasts to stay informed about the condition of this dam and advocate for necessary repairs or improvements to minimize risks and ensure the long-term sustainability of this important infrastructure.

Dam Length

130

Dam Height

12

River Or Stream

UNNAMED

Primary Dam Type

Earth

Surface Area

5.5

Drainage Area

0.15

Hazard Potential

Significant

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.