OHIO DAM FACTS
The state of Ohio through ODNR owns and maintains 179 dams statewide, which include 56
Class I, high-hazard dams. ODNR also regulates more than 1,500 publicly and privately-owned
dams through its Ohio Dam Safety Program.
The majority of these dams are either privately-owned (68 percent) or are owned by local
governments (23 percent) and are typically used for water supply, flood control and recreation.
There are approximately 30 federally-owned dams in Ohio that are owned, operated and
regulated by the federal government through the U.S. Army Corps of Engineers (USACE).
The goal of the Ohio Dam Safety Program is to enhance public safety by ensuring that dams do
not present unacceptable risks to people, property and the environment. One step toward
meeting this goal is performing periodic dam safety inspections across Ohio. These certified
inspections may result in program officials directing dam owners, including the state of Ohio, to
implement needed repairs or other risk-reduction measures and prepare for dam emergencies.
Existing and newly approved state capital appropriations earmarked specifically for dam risk-
reduction projects statewide include:
Assessments of existing conditions at state-owned dams.
Design and construction to reduce risk and bring state-owned dams into compliance
with dam safety standards.
Improving dam emergency response preparedness by ensuring Emergency Action Plans are updated.