Location and Description
Lake Loramie Dam is part of Lake Loramie State Park located in Shelby County and was built in 1844 to impound a feeder lake to the Miami & Erie Canal. The dam has a maximum height of 23.3 feet that carries a portion of State Route 362.
The dam has a 220-foot-long concrete spillway that discharges water from the lake into Loramie Creek.
As a Class I high-hazard potential structure, a sudden failure of Lake Loramie Dam likely would result in the structural collapse of at least one residence or one commercial or industrial business and probable loss of human life. (Hazard ratings refer to the consequences of dam failure, not the dam's condition.)
Click here for more about the Dam Risk Reduction Program.
Risk Reduction Construction Photos as of 2/23/2017
Lake Loramie Dam currently has deficiencies that must be addressed to bring it into compliance with state dam safety standards. The deficiencies include insufficient storage-discharge capacity, seepage and instability concerns at the concrete spillway and along the entire embankment, the walkway over the spillway, inoperable lake drain gates, and presence of trees and brush on the dam.
ODNR contracts with Stantec Consulting Services to provide investigations and preliminary design alternatives. Their investigations of the dam structure reveal the concrete spillway is deteriorated and has a very low safety level. Due to complex issues and a potentially time consuming process to address all the deficiencies, ODNR has proceeded with an incremental approach by preparing a final design to replace the existing spillway, reduce seepage and increase embankment stability. The new spillway will have similar height and flow characteristics as the existing spillway.
Long Term Plan
Routine inspections and maintenance of the dam will continue. An emergency action plan will be revised and shared with local emergency management officials once it is completed.
Additional park information may be found on the Lake Loramie State Park web page.
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