Dams in Mahoning County, Ohio
21Total Dams
7High Hazard
6Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Berlin Dam | High | Not Available | 96 | Flood Risk Reduction | 1943 |
| Mckelvey Lake Dam | High | Fair | 77 | Water Supply | 1926 |
| Lake Hamilton Dam | High | Poor | 70 | Recreation | 1905 |
| Lake Milton Dam | High | Poor | 53 | Recreation | 1916 |
| Evans Lake Dam | High | Fair | 49 | Water Supply | 1948 |
| Youngstown Upground Reservoir | High | Fair | 29 | Water Supply | 1929 |
| Pine Lake Dam | High | Satisfactory | 16 | Water Supply | 1911 |
| Arrowhead Lake Dam No. 1 | Significant | Fair | 30 | Recreation | 1952 |
| Newport Lake Dam | Significant | Satisfactory | 28 | Recreation | 1928 |
| Burgess Lake Dam | Significant | Poor | 27 | Water Supply | 1915 |
| Lake Cohasset Dam | Significant | Poor | 25 | Recreation | 1897 |
| Thompson Lake Dam | Significant | Poor | 14 | Recreation | |
| Mike Lake Dam | Significant | Poor | 11 | Recreation | 1958 |
| Zoldan Pond Dam | Low | Satisfactory | 31 | Recreation | 2003 |
| Lake Glacier Dam | Low | Fair | 24 | Recreation | 1905 |
| King's Lake Dam | Low | Poor | 14 | Recreation | 1957 |
| Lake Park Dam | Low | Poor | 12 | Recreation | 1900 |
| Rock Island Lake Dam | Undetermined | Not Rated | 34 | Recreation | 1964 |
| Lower Diehl Lake Dam | Undetermined | Not Rated | 27 | Recreation | 1930 |
| Usx Corporation Low Head Dam | Undetermined | 10 | Water Supply | ||
| Mayfield Lake Dam | Undetermined | 9 | Recreation |