Mount Gilead Lower Lake Dam

Mount Gilead Lower Lake Dam is an earth dam located in Morrow County, Ohio, built in 2018. It carries a High hazard potential classification and has a satisfactory condition assessment.

Hazard potentialHighFailure would probably cost lives
ConditionSatisfactoryBest of 4 ratings
Emergency action planOn file
Last inspection04/19/2022
Height33 ft
Built20188 years ago

Dam profile

NID height · 33 ft
33 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

33 ft tall and 735 ft long, taller than 76% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Mount Gilead Lower Lake Dam

The primary purpose of Mount Gilead Lower Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Odnr, Division of Parks & Watercraft (state). It impounds the Sams Creek near Mt. Gilead.

The dam stands 33 feet tall and stretches 735 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 298 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 2018, the structure is relatively new.

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 04/19/2022.

At 33 feet, this dam is taller than 76% of dams nationwide.

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 Ohio 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.

Location

StateOhio
CountyMorrow
Nearest CityMt. Gilead
River/StreamSams Creek
Coordinates40.54917, -82.81722

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length735 ft
Year Completed2018 (8 years old)

Storage & Hydraulics

NID Storage298 acre-ft
Max Storage298 acre-ft
Normal Storage90 acre-ft
Surface Area13 acres
Drainage Area8 sq mi
Max Discharge16,000 cfs

Ownership & Safety

PurposeRecreation
OwnerOdnr, Division of Parks & Watercraft
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/19/2022
Emergency Action PlanYes

Identifiers

NID IDOH00689
Federal IDOH00689
More InfoState Dam Safety Program