Did you know that in the state of Ohio over 30% of dams are classified as high-hazard? High hazard dams are dams that, according to FEMA, are “...based on the probable loss of human life and the potential for economic losses, environmental damage, and/or disruption to lifelines caused by failure of mis-operation of a dam or its appurtenances.” Placing dam on the high hazard list doesn’t mean that it is necessarily in danger of failing, it simply means that there could be cat