Cincinnati Semiconductor Lake Dam

Cincinnati Semiconductor Lake Dam is an earth dam located in Warren County, Ohio. It carries a Significant hazard potential classification and has a fair condition assessment.

About Cincinnati Semiconductor Lake Dam

The primary purpose of Cincinnati Semiconductor Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Truckbase, Inc.. It impounds the Tributary To Little Miami River near Morrow.

The dam stands 22 feet tall and stretches 750 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 0 square miles.

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 05/01/2024.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateOhio
CountyWarren
Nearest CityMorrow
River/StreamTributary To Little Miami River
Coordinates39.34528, -84.23028

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height22 ft
Dam Length750 ft

Storage & Hydraulics

NID Storage82 acre-ft
Max Storage82 acre-ft
Normal Storage41 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge1,096 cfs

Ownership & Safety

PurposeWater Supply
OwnerTruckBase, Inc.
Owner TypeNot Listed
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection05/01/2024
Emergency Action PlanNo

Identifiers

NID IDOH02558
Federal IDOH02558
More InfoState Dam Safety Program

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