Concord Pond Dam Reservoir Report

Last Updated: December 5, 2025

Concord Pond Dam, located in Cherry Tree Landing, Sussex, Delaware, is a state-regulated structure with a primary purpose of serving as a Fish and Wildlife Pond.


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Summary

The dam, standing at a height of 14.31 feet and spanning a length of 565 feet, has a storage capacity of 1481 acre-feet and a normal storage level of 1103.63 acre-feet. It is situated on the Deep Creek, within the Philadelphia District, and is overseen by the Delaware Department of Natural Resources and Environmental Control (DNREC).

The dam, classified as a Gravity type structure with Earth and Gravity components, features a Controlled spillway with a width of 95 feet and is equipped with 6 Slide (sluice gate) and 2 Vertical Lift outlet gates. With a Hazard Potential rating of High and a Condition Assessment of Fair, Concord Pond Dam has undergone modifications in 1978 and 2017 to enhance its hydraulic capabilities. The risk assessment for this dam is very high, highlighting the importance of ongoing monitoring and maintenance to ensure public safety and the integrity of the structure.

As a pivotal component in the management of water resources and wildlife habitats, Concord Pond Dam serves as a vital asset for the region. Its strategic location and function underscore the significance of proper regulatory oversight, regular inspections, and emergency preparedness to mitigate potential risks and safeguard the surrounding environment. Enthusiasts interested in water resource conservation and climate resilience will find Concord Pond Dam to be an intriguing case study in balancing ecological priorities with infrastructure management in the face of changing climate conditions.

Years Modified

1978 - Hydraulic, 2017 - Hydraulic

Dam Length

565

Dam Height

14.31

River Or Stream

DEEP CREEK

Primary Dam Type

Gravity

Surface Area

88.17

Drainage Area

63.49

Nid Storage

1481

Outlet Gates

Slide (sluice gate) - 6, Vertical Lift - 2

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

14
       
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.