Hearns Pond Dam

Hearns Pond Dam is a gravity dam located in Sussex County, Delaware, built in 1912. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Hearns Pond Dam

The primary purpose of Hearns Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Dnrec Dfw (state). It impounds the Clear Brook near Seaford.

The dam stands 14 feet tall and stretches 580 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 1,434 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1912, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/04/2024.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Delaware dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateDelaware
CountySussex
Nearest CitySeaford
River/StreamClear Brook
Coordinates38.67929, -75.59403

Physical Characteristics

Dam TypeGravity
NID Height14 ft
Dam Height14 ft
Dam Length580 ft
Year Completed1912 (114 years old)

Storage & Hydraulics

NID Storage1,434 acre-ft
Max Storage1,434 acre-ft
Normal Storage360 acre-ft
Surface Area24 acres
Drainage Area12 sq mi
Max Discharge3,977 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerDNREC DFW
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection11/04/2024
Emergency Action PlanYes

Identifiers

NID IDDE00060
Federal IDDE00060
More InfoState Dam Safety Program

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