The army corps of engineers is warning of a high risk of ‘catastrophic failure’ but it is just one of thousands of similar structures across the US rated ‘high hazard’Buckeye dam is not much to look at. It is not a towering monument to engineering like the Hoover dam. It does not contain a mighty river or spin electric turbines.Much of the dam next to the village of Buckeye Lake in Ohio is little more than a 16ft-high earth embankment faced with concrete and steel plating to contain a 3,000-acre artificial lake.