Mallard Cove Lake Dam

Mallard Cove Lake Dam is an earth dam located in Hamilton County, Ohio, built in 1984. It carries a Significant hazard potential classification and has a fair condition assessment.

About Mallard Cove Lake Dam

The primary purpose of Mallard Cove Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Craig W.f. Hilsinger (private). It impounds the Tributary To Muddy Creek near Cincinnati.

The dam stands 36 feet tall and stretches 225 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1984, the structure is 42 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/03/2021.

At 36 feet, this dam is taller than 83% of dams nationwide.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateOhio
CountyHamilton
Nearest CityCincinnati
River/StreamTributary To Muddy Creek
Coordinates39.14083, -84.66250

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Height36 ft
Dam Length225 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage51 acre-ft
Max Storage51 acre-ft
Normal Storage25 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge1,155 cfs

Ownership & Safety

PurposeRecreation
OwnerCraig W.F. Hilsinger
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection06/03/2021
Emergency Action PlanNo

Identifiers

NID IDOH01704
Federal IDOH01704
More InfoState Dam Safety Program

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