Cubbage Pond Dam

Cubbage Pond Dam is a gravity dam located in Sussex County, Delaware, built in 1880. It carries a High hazard potential classification and has a fair condition assessment.

About Cubbage Pond Dam

The primary purpose of Cubbage Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Deldot (state). It impounds the Cedar Creek near South Shores.

The dam stands 11 feet tall and stretches 575 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 480 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 1880, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/30/2024.

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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateDelaware
CountySussex
Nearest CitySouth Shores
River/StreamCedar Creek
Coordinates38.86565, -75.39036

Physical Characteristics

Dam TypeGravity
NID Height11 ft
Dam Height11 ft
Dam Length575 ft
Year Completed1880 (146 years old)

Storage & Hydraulics

NID Storage480 acre-ft
Max Storage480 acre-ft
Normal Storage352 acre-ft
Surface Area37 acres
Drainage Area10 sq mi
Max Discharge1,362 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerDELDOT
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection05/30/2024
Emergency Action PlanYes

Identifiers

NID IDDE00086
Federal IDDE00086
More InfoState Dam Safety Program

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