Lake Lorelei Dam

Lake Lorelei Dam is an earth dam located in Brown County, Ohio, built in 1968. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Lake Lorelei Dam

The primary purpose of Lake Lorelei Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Lorelei P.o.a., Inc. (private). It impounds the Glady Run near Blowville.

The dam stands 42 feet tall and stretches 1,072 feet across, creates a reservoir covering 155 acres, has a maximum storage capacity of 3,150 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1968, the structure is well into its service life at over 50 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 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 04/24/2024.

At 42 feet, this dam is taller than 89% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateOhio
CountyBrown
Nearest CityBlowville
River/StreamGlady Run
Coordinates39.17500, -83.97500

Physical Characteristics

Dam TypeEarth
NID Height42 ft
Dam Height42 ft
Dam Length1,072 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage3,150 acre-ft
Max Storage3,150 acre-ft
Normal Storage1,679 acre-ft
Surface Area155 acres
Drainage Area5 sq mi
Max Discharge10,893 cfs

Ownership & Safety

PurposeRecreation
OwnerLake Lorelei P.O.A., Inc.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/24/2024
Emergency Action PlanYes

Identifiers

NID IDOH00168
Federal IDOH00168
More InfoState Dam Safety Program

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