Largest Reservoirs in Indiana

Indiana has 1001 dams with recorded storage capacity. The largest is Monroe Dam with 441,000 acre-feet of maximum storage. One acre-foot equals about 326,000 gallons — enough to supply roughly two households for a year.

#	Dam	County	Max Storage (acre-ft)	Height (ft)	Purpose	Year
1	Monroe Dam	Monroe	441,000	93	Flood Risk Reduction	1965
2	Mississinewa Dam	Miami	368,400	140	Flood Risk Reduction	1967
3	Patoka Lake Dam	Dubois	301,640	145	Flood Risk Reduction	1978
4	Salamonie Dam - Lancaster Levee And Dike	Huntington	263,600	20	Flood Risk Reduction	1966
5	Cagles Mill Dam	Putnam	228,120	150	Flood Risk Reduction	1953
6	J. Edward Roush Dam - Star Of Hope Levee	Huntington	153,100	26	Flood Risk Reduction	1968
7	Cecil M. Harden Dam	Parke	132,800	119	Flood Risk Reduction	1960
8	Eagle Creek Reservoir Dam	Marion	110,000	92	Flood Risk Reduction	1967
9	Geist Reservoir Dam	Marion	60,000	44	Water Supply	1944
10	Hoosier Energy Reservoir Dam	Sullivan	55,070	66	Water Supply	1980
11	Morse Reservoir Dam	Hamilton	49,300	70	Water Supply	1955
12	Lake Lemon Dam	Monroe	45,700	51	Water Supply	1952
13	Gibson Generating Plant Dam	Gibson	43,500	20	Other	1973
14	Prairie Creek Reservoir Dam	Delaware	36,670	61	Other	1959
15	Glendale Reservoir	Daviess	36,600	53	Recreation	1963
16	Greenwood Lake Dam	Martin	29,800	55	Flood Risk Reduction	1937
17	Hardy Lake Dam	Scott	27,465	63		1970
18	Summit Lake State Park Dam	Henry	25,550	64	Recreation	1981
19	Oakdale	Carroll	24,752	64	Recreation	1925
20	West Boggs Creek Structure No. 1	Martin	18,438	51	Flood Risk Reduction	1971
21	Hamilton Lake-north Dam	Steuben	18,000	16		1832
22	Hamilton Lake-south Dam	Steuben	18,000	21		1832
23	Little Walnut Creek Conservancy District Structure #4	Putnam	15,844	66	Flood Risk Reduction	1976
24	Middle Fork Of Anderson River - No. 7	Perry	15,400	44	Flood Risk Reduction	1970
25	Lake Sullivan Dam Busseron No. K-1	Sullivan	13,178	40	Flood Risk Reduction	1968
26	Lamb Lake Estates Dam	Johnson	13,000	82	Water Supply	1972
27	Norway	White	12,920	40	Recreation	1923
28	J.c. Murphey Lake Dam	Newton	12,805	17	Recreation	1951
29	Lake George Dam	Steuben	12,200	15	Recreation	1927
30	Middle Fork Reservoir Dam	Wayne	12,000	74	Water Supply	1963
31	Grandview Lake Dam	Bartholomew	11,935	81	Water Supply	1965
32	Sweetwater Lake Dam	Brown	11,700	140	Recreation	1965
33	Twin-rush Creek Dam No. 2	Washington	10,650	65	Water Supply	1969
34	Twin Branch	St. Joseph	10,000	41	Hydroelectric	1903
35	Deam Lake Dam	Clark	9,971	59		1964
36	Heritage Lake Dam	Putnam	9,800	51		1971
37	Potato Creek State Park Dam	St. Joseph	9,000	42	Recreation	1977
38	Whitewater St. Park Lake Dam	Union	8,610	70	Recreation	1949
39	Little Raccoon Dam No.8 - Waveland Lake Dam	Montgomery	8,200	51	Flood Risk Reduction	1970
40	Cedarville Dam	Allen	7,830	27	Water Supply	1953
41	Hidden Valley Lake Dam	Dearborn	7,750	135	Recreation	1973
42	Webster Lake Dam - East	Kosciusko	7,545	12	Recreation	1835
43	Kickapoo Lake Dam	Sullivan	7,538	54	Flood Risk Reduction	1969
44	Sylvan Lake Dam	Noble	7,400	30	Recreation	1839
45	Moss Dam	Jackson	7,244	19	Fish and Wildlife Pond	1980
46	Lake Gallimore Dam	Martin	6,740	26	Flood Risk Reduction	1962
47	Lake Holiday Dam	Montgomery	6,718	68	Recreation	1964
48	Cordry Lake Dam	Brown	6,650	120		1969
49	Hurshtown Reservoir Dam	Allen	6,500	40	Water Supply	1971
50	Kokomo Waterworks Reservoir #2 Dam	Howard	6,320	28		1957

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