Ohio Dams
1,377 dams tracked by the National Inventory of Dams
Total Dams
1,377
High Hazard
397
28.8%
Poor / Unsatisfactory
509
Average Age
65 yrs
Hazard Classification
High397 (28.8%)
Significant564 (41.0%)
Low339 (24.6%)
Condition Assessment
Satisfactory324 (23.5%)
Fair421 (30.6%)
Poor / Unsatisfactory509 (37.0%)
Not Rated123 (8.9%)
Federal
39
State
115
Local
356
Private
753
Tallest Dams
High Hazard Dams
Poor Condition Dams
All Dams in Ohio
Showing 1176–1200 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Chippewa Creek Structure Iii-A Medina County | 55 | 1980 | High | Satisfactory |
| Chippewa Creek Structure Ii-A Medina County | 35 | 1969 | Significant | Fair |
| Chestnut Ridge Lake Dam Trumbull County | 11 | — | Low | Poor |
| Chateau Lakes No. 1 Dam Hamilton County | 68 | 1975 | High | Fair |
| Charylie'S Lake Dam Butler County | 29 | 1963 | High | Fair |
| Charolais Lake Dam Gallia County | 31 | 1975 | Low | Fair |
| Charles Mill Dam - Dike 2 Ashland County | 22 | 1936 | High | Not Available |
| Charlemont Creek Lake Dam Lorain County | 21 | 1969 | Low | Poor |
| Charbonneau Lake Dam Summit County | 20 | 2002 | High | Satisfactory |
| Channel Lake Dam Perry County | 42 | — | Significant | Poor |
| Champagne Shores Pond Dam Medina County | 18 | 1971 | Significant | Satisfactory |
| Celeryville Upground Reservoir Crawford County | 22 | 1965 | High | Satisfactory |
| Cedarville Upground Reservoir Greene County | 15 | 1963 | High | Poor |
| Cedarville University Lake Dam Greene County | 16 | 1964 | Significant | Fair |
| Cedar Hill Campground Lake Dam Highland County | 30 | 1970 | Significant | Fair |
| Cave Lake Dam Pike County | 29 | 1962 | High | Fair |
| Cave Hill Lake Dam Adams County | 28 | 1969 | Low | Fair |
| Catman Blues Fishing Lake LLC Clermont County | 27 | 1961 | Low | Poor |
| Carriage Hill Reserve Lake Dam Montgomery County | 24 | 1982 | Significant | Satisfactory |
| Carol-Jane Lake Dam Medina County | 26 | 1940 | Significant | Satisfactory |
| Carman Lake Dam Washington County | 19 | — | Significant | Satisfactory |
| Cardinal Plant Ash Pond Dam Jefferson County | 20 | 1974 | Significant | Fair |
| Cardinal Lakes Dam Geauga County | 24 | 1976 | Low | Fair |
| Cardinal Fly Ash No. 2 Dam Jefferson County | 250 | 2014 | High | Satisfactory |
| Cardinal Fly Ash No. 1 Dam Jefferson County | 242 | 1974 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.