Water Supply Dams in Ohio

Ohio has 204 water supply dams, of which 114 carry a high hazard classification. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	No. 2 Slurry Pond	Belmont	300	High	Not Available
2	Hoover Dam	Franklin	86	High	Fair	1956
3	O'shaughnessy	Delaware	79	High	Satisfactory	1924
4	Barnesville Reservoir No. 3 Dam	Belmont	77	High	Poor	1965
5	Mckelvey Lake Dam	Mahoning	77	High	Fair	1926
6	Georgetown Plant Freshwater Dam	Harrison	73	High	Not Rated	1949
7	International Animal Preserve Pond Dam #10	Muskingum	68	High	Fair	1976
8	Willard City Upground Reservoir	Huron	65	High	Fair	1971
9	Old Man's Cave Lake Dam	Hocking	64	High	Poor	1972
10	Hammertown Lake Dam	Jackson	60	High	Poor	1954
11	Mineral Ridge Dam	Trumbull	60	High	Poor	1932
12	Gorge Plant Dam	Summit	57	High	Poor	1912
13	Buckeye Water District Reservoir	Columbiana	56	High	Satisfactory	2008
14	Woodsfield Reservoir Dam No. 3	Monroe	56	High	Poor	1992
15	Upper Girard Lake Dam	Trumbull	55	High	Poor	1929
16	Switzerland Lake Dam	Belmont	54	Significant	Fair	1956
17	Norwalk Memorial Reservoir	Huron	54	High	Fair	1954
18	Williams Reservoir	Allen	53	High	Satisfactory	2012
19	Del-co Upland Storage Reservoir No. 4	Delaware	53	High	Fair	1995
20	Julian Griggs Dam	Franklin	52	High	Fair	1905
21	Del-co Upland Storage Reservoir No. 3	Delaware	51	High	Fair	1994
22	Vesuvius Dam	Lawrence	51	High	Not Rated
23	International Animal Preserve Pond Dam	Muskingum	51	Significant	Poor
24	Winton Woods Golf Course Lake "e" Dam	Hamilton	50	Significant	Satisfactory	1994
25	International Animal Preserve Pond Dam #2	Muskingum	50	Significant	Poor	1959
26	Ferguson Upground Reservoir	Allen	49	High	Fair	1959
27	Evans Lake Dam	Mahoning	49	High	Fair	1948
28	Barnesville Reservoir No. 2 Dam	Belmont	48	High	Poor	1936
29	Salem Reservoir (south Embankment)	Columbiana	48	High	Poor	1952
30	Hillsboro Upground Reservoir	Highland	48	Significant	Poor	1991
31	Shelby Upground Reservoir No. 2	Richland	48	High	Fair	1955
32	Marysville Upground Reservoir	Union	48	High	Satisfactory	2009
33	Westerville Reservoir Dam	Delaware	47	High	Satisfactory	1960
34	Cambridge City Reservoir Dam	Guernsey	47	Significant	Fair	1916
35	Lower Woodsfield Reservoir Dam	Monroe	47	Significant	Poor	1901
36	John R. Doutt Upground Reservoir	Delaware	46	High	Fair	2014
37	Little Mountain Dam "a"	Lake	46	Significant	Poor
38	Metzger Upground Reservoir	Allen	45	High	Fair	1946
39	R & F Lamira Freshwater Dam	Belmont	45	Significant	Satisfactory	1979
40	Equinus (legendary Run) Lake Dam	Clermont	45	High	Satisfactory	2001
41	Del-co Upland Storage Reservoir No. 5	Delaware	45	High	Fair	2004
42	Georgetown Plant Lower Supply Pond Dam	Harrison	45	Significant	Not Rated	1951
43	New Lexington Reservoir Dam	Perry	45	High	Poor	1936
44	Clear Fork Reservoir Dam	Richland	44	High	Poor	1949
45	Nimisila Reservoir Dam	Summit	44	High	Poor	1936
46	Del-co Upland Storage Reservoir No. 2	Delaware	43	High	Satisfactory	1989
47	International Animal Preserve Pond Dam #65	Muskingum	43	Significant	Poor
48	Wolf Creek Dam	Summit	43	High	Poor	1926
49	Barnesville Reservoir No. 1 Dam	Belmont	42	High	Fair	1904
50	Puskarich Lake Dam	Carroll	42	High	Fair	1971
51	Delta Upground Reservoir No. 2	Fulton	42	High	Satisfactory	1984
52	Hillsboro Reservoir No. 1 Dam	Highland	42	Significant	Fair	1945
53	New Concord Village Reservoir Dam	Muskingum	42	Significant	Fair	1955
54	Wellston Reservoir Dam	Jackson	41	High	Poor	1920
55	International Animal Preserve Pond Dam #8	Muskingum	41	Significant	Poor	1962
56	Bridge Creek Dam	Geauga	40	High	Poor	1961
57	Amick Upground Reservoir	Morrow	40	High	Poor	1968
58	Lake Rupert Dam	Vinton	40	High	Poor	1968
59	Royal Oak Golf Course Pond No. 2 Dam	Clermont	39	Significant	Poor	1966
60	Norwalk Upper Reservoir	Huron	39	High	Satisfactory	1896
61	New London Reservoir	Huron	39	High	Satisfactory	1975
62	Echo Valley Lake Dam	Lorain	39	Low	Satisfactory	1999
63	Swift Run Lake Dam	Miami	39	Significant	Poor	1876
64	Bresler Upground Reservoir	Allen	38	High	Fair	1970
65	Lost Creek Upground Reservoir	Allen	38	High	Poor	1917
66	Eldon Reservoir Dam	Guernsey	38	Low	Poor	1933
67	International Animal Preserve Dam 9715-009	Muskingum	38	Low	Poor	1972
68	International Animal Preserve Pond Dam #35	Muskingum	38	Significant	Poor	1975
69	Clermont Golf Limited Lake Dam	Clermont	37	High	Fair	1997
70	Dale Walborn Reservoir Dam	Stark	37	High	Poor	1971
71	St. Clairsville Reservoir No. 1 Dam	Belmont	36	High	Satisfactory	1929
72	Alum Creek Upground Reservoir No. 2	Delaware	36	High	Fair	2004
73	Fostoria Upground Reservoir No. 5	Hancock	36	High	Fair	1958
74	Quail Hollow Lake Dam	Lake	36	Low	Fair	1975
75	Davis Pond Dam	Morgan	36	Undetermined	Not Rated	1961
76	Ohio Power Company Pond Mum-67	Muskingum	36	Low	Poor
77	Votel Lake Dam	Warren	36	High	Fair	1954
78	Wellington Upground Reservoir	Lorain	35	High	Fair	1972
79	Somerset Reservoir Dam	Perry	35	Significant	Poor	1941
80	Lake Rockwell Dam	Portage	35	High	Poor	1913
81	East Branch Reservoir Dam	Geauga	34	High	Poor	1939
82	Norwalk Lower Reservoir	Huron	34	High	Satisfactory	1896
83	International Animal Preserve Pond Dam #7	Muskingum	34	Low	Poor	1961
84	Fremont Upground Reservoir	Sandusky	34	High	Satisfactory	2012
85	Beaver Creek Upground Reservoir	Seneca	34	High	Fair	1971
86	Deer Creek Reservoir Dam	Stark	34	Significant	Fair	1954
87	Possum Hollow Farm Dam	Brown	33	Low	Fair	1973
88	Sparrow Reservoir Dam	Harrison	33	Low	Poor	1949
89	Sycamore Creek Lake Dam	Warren	33	Low	Poor
90	Parker Pond Dam	Belmont	32	Low	Satisfactory	2014
91	Lake Waynoka Retention Dam	Brown	32	Significant	Satisfactory	1973
92	Bucyrus Reservoir No. 3 Dam	Crawford	32	High	Fair	1955
93	Findlay Upground Reservoir No. 2	Hancock	32	High	Fair	1971
94	Veterans Memorial Reservoir	Hancock	32	High	Fair	1992
95	Mccomb Upground Reservoir No. 2	Hancock	32	High	Fair	1979
96	Meigs Mine No. 1 Water Supply Dam	Meigs	32	Significant	Not Rated	1973
97	Amann Reservoir Dam	Morrow	32	Significant	Poor	1904
98	St. Clairsville Reservoir No. 2 Dam	Belmont	31	High	Satisfactory	1920
99	Mount Orab Upground Reservoir No. 2	Brown	31	High	Satisfactory	1974
100	Wilmington Upground Reservoir No. 2	Clinton	31	High	Satisfactory	1963

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