Below are links that show the location and other info for low head dams in Ohio, Kentucky, and Indiana.

A low-head dam is a man-made obstruction typically built within a river or stream channel, and spanning from bank to bank. Many variations exist among the thousands of low-head dams on streams and rivers throughout the United States, but they generally:

• have water flowing across the entire length of the top of the dam,
• are from 1 to about 15 feet tall (although taller ones exist on very large streams),
• store a minimal amount of water below the stream bank level, within the channel, and
• do not typically provide flood reduction storage.

Low-head dams can be deceivingly dangerous. At times the water around them appears tranquil and inviting; however, moderate to high flows over such dams create strong turbulence and recirculating currents that can push victims underwater, and then pull them back toward the face of the dam in a repeating cycle. These structures have been known to trap unsuspecting victims in dangerous conditions. Even the strongest swimmers and rescuers wearing the best personal floatation devices have drowned at low-head dams. View the WFYI documentary ‘Over, Under, Gone: The Killer in Our Rivers’.

Ohio:
https://gis2.ohiodnr.gov/MapViewer/?config=ohiodams

Indiana
https://indnr.maps.arcgis.com/apps/webappviewer/index.html?id=729f94f7963a42d9ab0d38c639590fea

Kentucky
https://kentucky.hometownlocator.com/features/cultural,class,dam.cfm