Largest Reservoirs in South Carolina

South Carolina has 2400 dams with recorded storage capacity. The largest is Clemson Lower Diversion Dam - Saddle Dike with 3,438,700 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	Clemson Lower Diversion Dam - Saddle Dike	Oconee	3,438,700	30	Flood Risk Reduction	1961
2	Clemson Upper Diversion Dam	Oconee	3,438,700	75	Flood Risk Reduction	1961
3	Saluda Backup Berm	Lexington	2,200,000	213	Hydroelectric	2005
4	Santee	Berkeley	1,450,000	68	Flood Risk Reduction	1942
5	St. Stephen Powerhouse Dam - North Intake Canal Dike	Berkeley	1,405,570	30
6	Jocassee Spillway	Oconee	1,160,298	64	Hydroelectric	1973
7	Dike A - Keowee	Oconee	955,586	25	Hydroelectric	1969
8	Fairfield Freeboard Dike	Fairfield	400,000	8	Hydroelectric	1977
9	Wateree	Kershaw	262,394	92	Hydroelectric	1919
10	Buzzards Roost Spillway	Newberry	256,000	93	Hydroelectric	1940
11	Wylie	York	246,435	119	Hydroelectric	1925
12	Cooper Dev - Pinopolis Dam	Berkeley	110,000	138	Flood Risk Reduction	1942
13	North Saluda Reservoir Dam	Greenville	80,648	175	Water Supply	1956
14	D.o.e. Savannah River Par Pond Lower Dam	Barnwell	77,500	66	Other	1959
15	Fishing Creek	Lancaster	60,000	105	Hydroelectric	1916
16	Lake Robinson Dam	Darlington	59,659	50	Hydroelectric	1960
17	Lake Robinson Dam	Greenville	45,000	73	Recreation	1984
18	D.o.e. Savannah River Steel Creek Dam	Barnwell	39,616	77	Other	1986
19	West Dam, Bad Creek	Oconee	33,892	170	Hydroelectric	1991
20	Table Rock Reservoir Dam	Pickens	33,112	155	Water Supply	1925
21	Parr Shoals Dam	Newberry	32,000	55	Hydroelectric	1914
22	Lake Bowen Dam	Spartanburg	32,000	55	Other	1956
23	Rabon Creek Wcd Dam 32	Laurens	28,000	72	Flood Risk Reduction	1987
24	Rocky River Gated Spillway	Abbeville	26,300	50	Hydroelectric	1940
25	Ridgeway Tailings Impdam	Fairfield	24,200	189	Other
26	H Taylor Blalock Reservoir Dam	Spartanburg	20,000	72	Water Supply
27	Hanson Aggregates Brewer Upper Dam	Chesterfield	15,000	53	Tailings	1999
28	Duckwood Tailings Storage Facility	Lancaster	13,943	110	Tailings
29	Lyman Lake Dam	Spartanburg	12,245	43	Recreation	1955
30	Broadway Lake Dam	Anderson	11,400	37	Recreation	1940
31	Yonah	Oconee	10,200	92	Hydroelectric	1925
32	Cane Creek Wcd Dam 10d	Lancaster	10,000	56	Flood Risk Reduction	1984
33	Rocky Creek-cedar Creek	Fairfield	9,620	117	Hydroelectric	1909
34	Lake Whelchel	Cherokee	8,701	73	Recreation	1964
35	Weston Lake	Richland	8,600	48	Recreation	1971
36	Saluda Lake Dam	Greenville	7,519	54	Hydroelectric	1905
37	Hollidays Bridge Dam	Greenville	7,384	50	Hydroelectric	1906
38	Smurfit-stone Lagoon Dam	Florence	7,107	17	Other
39	North Tyger River Wcd Dam 2	Spartanburg	6,800	61	Flood Risk Reduction	1976
40	Rabon Creek Wcd Dam 20	Greenville	6,455	55	Flood Risk Reduction	1985
41	South Pacolet River Reservoir 1	Spartanburg	6,242	74	Hydroelectric	1926
42	Lee Nuclear Dam 1	Cherokee	6,000	79	Other
43	Beaverdam-warrior Creek Wcd Dam 1m	Laurens	5,800	46	Flood Risk Reduction	1976
44	Hermitage Mill Pond Dam	Kershaw	5,790	16	Recreation	1935
45	Lake Carolina Dam	Richland	5,564	47	Recreation	1999
46	Croft State Park Lake Dam	Spartanburg	5,088	40	Recreation	1960
47	D.o.e. Savannah River Pond C	Barnwell	4,867	82	Other	1957
48	Jackson-mill Creek Wcd Dam 7	Fairfield	4,805	54	Flood Risk Reduction	1973
49	New-indy Dam 1	York	4,788	34	Other	1957
50	Cane Creek Wcd Dam 18a	Lancaster	4,731	51	Flood Risk Reduction	1978

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