Dams in Ottawa, Ohio

2
Total Dams
0
High Hazard
2
Significant
54.0 yrs
Avg Age
Hazard Name Height
Dam Name Hazard Height Built Type State
Graymont Sludge Lagoons Ottawa Significant Hazard 18 ft 1981 Earth Ohio
Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4 Ottawa Significant Hazard 10 ft 1963 Earth Ohio