This is a list of largest reservoirs in the United States , including all artificial lakes with a capacity greater than or equal to 1,000,000 acre-feet (1.2 km 3 ) . Figures given are for maximum storage capacity (flood pool) of reservoirs, not regular storage volume (conservation pool). This difference is significant in reservoirs such as Kentucky Lake , whose full capacity is nearly three times that of its conservation pool.
Lake Powell , impounded by Glen Canyon Dam , is the second-largest reservoir in the U.S.
Due to sedimentation and other factors that affect a reservoir's storage capacity over time, some data listed might not accurately reflect actual current conditions in certain reservoirs. For example, Lake Mead – the largest reservoir in the U.S. – could store more than 32.4 million acre-feet (40.1 km3 ) when first filled, but sediment accumulation has reduced this to 28.9 million acre-feet (35.6 km 3 ) .
More information Key ...
Key
† Reservoir is an existing lake raised by a dam; only the volume added by the dam is listed
Reservoir not entirely within the United States
‡ Offstream reservoir
N.F. = North Fork (ditto S.F., E.F., W.F.)
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More information Name, State(s) ...
Name
State(s)
Coordinates
Capacity
Surface area
Dam(s)
River
Year[n 1]
Acre-feet
km3
Acres
Ha
Abiquiu Lake
NM
36°16′35″N 106°28′31″W
1,192,801 1.471
12,430 5,030
Abiquiu Dam
Rio Chama
1963
Alamo Lake
AZ
34°17′47″N 113°32′43″W
1,043,000 1.287
17,000 6,900
Alamo Dam
Bill Williams River
1968
Allegheny Reservoir
NY PA
41°57′36″N 78°56′04″W
1,300,000 1.604
21,180 8,570
Kinzua Dam
Allegheny River
1965
American Falls Reservoir [1]
ID
42°54′29″N 112°45′04″W
1,672,600 2.063
56,000 23,000
American Falls Dam
Snake River
1978
Amistad Reservoir
COA TX
29°28′14″N 101°06′06″W
5,658,600 6.980
64,900 26,300
Amistad Dam
Rio Grande
1969
Arkabutla Lake
MS
34°44′34″N 90°06′13″W
1,383,800 1.707
30,000 12,000
Arkabutla Dam
Coldwater River
1943
Banks Lake
WA
47°47′54″N 119°12′01″W
1,275,000 1.573
26,900 10,900
Dry Falls Dam , North Dam
Grand Coulee ‡
1949
Beaver Lake
AR
36°21′17″N 93°55′28″W
1,950,000 2.405
31,700 12,800
Beaver Dam
White River
1966
Belton Lake
TX
31°08′00″N 97°30′30″W
1,876,700 2.315
37,340 15,110
Belton Dam
Leon River
1954
Bighorn Lake
MT WY
45°06′22″N 108°11′13″W
1,381,189 1.704
17,300 7,000
Yellowtail Dam
Bighorn River
1967
Broken Bow Lake
OK
34°12′32″N 94°41′00″W
1,368,230 1.688
18,000 7,300
Broken Bow Dam
Mountain Fork
1968
Brownlee Reservoir
ID OR
44°35′34″N 117°07′31″W
1,426,700 1.760
15,000 6,100
Brownlee Dam
Snake River
1958
Bull Shoals Lake
AR MO
36°29′52″N 92°45′58″W
5,760,000 7.105
71,240 28,830
Bull Shoals Dam
White River
1951
Canyon Ferry Lake
MT
46°31′15″N 111°34′22″W
1,997,900 2.464
35,181 14,237
Canyon Ferry Dam
Missouri River
1954
Cedar Creek Reservoir
TX
32°16′08″N 96°08′23″W
1,085,000 1.338
34,000 14,000
Joe B. Hogsett Dam
Cedar Creek
1965
Center Hill Lake
TN
36°01′42″N 85°45′17″W
2,092,000 2.580
18,220 7,370
Center Hill Dam
Caney Fork
1948
Cherokee Lake
TN
36°15′57″N 83°22′17″W
1,541,000 1.901
28,780 11,650
Cherokee Dam
Holston River
1941
Dale Hollow Reservoir
KY TN
36°36′41″N 85°18′40″W
1,706,000 2.104
27,700 11,200
Dale Hollow Dam
Obey River
1943
DeGray Lake
AR
34°14′36″N 93°11′29″W
1,377,100 1.699
18,000 7,300
DeGray Dam
Caddo River
1972
Don Pedro Reservoir [2]
CA
37°46′46″N 120°21′43″W
2,030,000 2.504
12,960 5,240
New Don Pedro Dam
Tuolumne River
1971
Douglas Lake
TN
35°59′33″N 83°22′20″W
1,461,000 1.802
28,420 11,500
Douglas Dam
French Broad River
1943
Dworshak Reservoir
ID
46°36′38″N 116°06′27″W
3,469,900 4.280
16,418 6,644
Dworshak Dam
N.F. Clearwater River
1973
Elephant Butte Lake
NM
33°18′35″N 107°09′58″W
2,065,010 2.547
35,984 14,562
Elephant Butte Dam
Rio Grande
1916
Enid Lake
MS
34°09′05″N 89°48′32″W
1,213,500 1.497
28,000 11,000
Enid Dam
Yocona River
1952
Eufaula Lake
OK
35°17′19″N 95°32′33″W
3,798,000 4.685
105,000 42,000
Eufaula Dam
Canadian River
1964
Falcon Lake
TAM TX
26°44′20″N 99°13′48″W
2,645,646 3.263
87,400 35,400
Falcon Dam
Rio Grande
1954
Falls Lake
NC
36°01′16″N 78°42′46″W
1,020,980 1.259
12,410 5,020
Falls Dam
Neuse River
1981
Flathead Lake †
MT
47°54′05″N 114°06′09″W
1,217,000 1.501
126,000 51,000
SKQ Dam
Flathead River
1939
Flaming Gorge Reservoir
UT WY
41°05′37″N 109°32′40″W
3,788,700 4.673
42,020 17,000
Flaming Gorge Dam
Green River
1964
Fort Gibson Lake
OK
35°57′10″N 95°16′24″W
1,292,000 1.594
19,900 8,100
Fort Gibson Dam
Neosho River
1949
Fort Peck Lake [3]
MT
47°45′23″N 106°43′28″W
19,100,000 23.560
245,000 99,000
Fort Peck Dam
Missouri River
1940
Fontana Lake
NC
35°26′13″N 83°40′44″W
1,443,000 1.780
10,240 4,140
Fontana Dam
Little Tennessee River
1944
F.D. Roosevelt Lake [4]
WA
48°19′53″N 118°10′27″W
9,562,000 11.795
80,000 32,000
Grand Coulee Dam
Columbia River
1942
Grand Lake o' the Cherokees
OK
36°36′49″N 94°50′54″W
1,672,000 2.062
46,500 18,800
Pensacola Dam
Neosho River
1940
Greers Ferry Lake
AR
35°31′25″N 92°07′21″W
2,844,000 3.508
40,500 16,400
Greers Ferry Dam
Little Red River
1962
Grenada Lake
MS
33°49′54″N 89°43′42″W
2,722,100 3.358
35,820 14,500
Grenada Dam
Yalobusha River
1954
Guntersville Lake [5]
AL
34°30′38″N 86°09′33″W
1,018,700 1.257
67,900 27,500
Guntersville Dam
Tennessee River
1939
Hugo Lake
OK
34°03′52″N 95°24′56″W
1,274,110 1.572
35,045 14,182
Hugo Lake Dam
Kiamichi River
1974
Hungry Horse Reservoir
MT
48°13′32″N 113°47′56″W
3,467,179 4.277
23,813 9,637
Hungry Horse Dam
S.F. Flathead River
1953
John H. Kerr Reservoir
NC VA
36°34′23″N 78°29′10″W
3,363,500 4.149
83,200 33,700
John H. Kerr Dam
Roanoke River
1953
Jordan Lake
NC
35°44′35″N 79°01′36″W
1,646,560 2.031
31,800 12,900
B. Everett Jordan Dam
Haw River
1983
Kaw Lake
OK
36°46′14″N 96°49′43″W
1,070,310 1.320
38,000 15,000
Kaw Dam
Arkansas River
1976
Kentucky Lake
KY TN
36°31′26″N 88°02′13″W
6,129,000 7.560
160,300 64,900
Kentucky Dam
Tennessee River
1944
Keystone Lake
OK
36°13′50″N 96°17′50″W
1,737,600 2.143
54,320 21,980
Keystone Dam
Arkansas River
1964
Lake Almanor
CA
40°15′21″N 121°10′08″W
1,308,000 1.613
28,160 11,400
Canyon Dam
N.F. Feather River
1910
Lake Barkley
KY TN
36°52′14″N 87°59′12″W
2,082,000 2.568
57,920 23,440
Barkley Dam
Cumberland River
1966
Lake Berryessa
CA
38°35′25″N 122°13′32″W
1,602,000 1.976
20,700 8,400
Monticello Dam
Putah Creek
1957
Lake Cumberland
KY
36°55′05″N 85°00′58″W
6,089,000 7.511
65,530 26,520
Wolf Creek Dam
Cumberland River
1951
Lake Elwell
MT
48°20′43″N 111°15′10″W
1,515,000 1.869
14,842 6,006
Tiber Dam
Marias River
1956
Lake Francis Case
SD
43°26′31″N 99°12′33″W
5,700,000 7.031
102,000 41,000
Fort Randall Dam
Missouri River
1956
Lake Hartwell
GA SC
34°29′44″N 82°49′14″W
3,438,700 4.242
55,950 22,640
Hartwell Dam
Savannah River
1962
Lake Jocassee
NC SC
34°58′52″N 82°56′17″W
1,185,000 1.462
7,565 3,061
Jocassee Dam
Keowee River
1975
Lake Kemp
TX
33°45′20″N 99°08′52″W
1,040,000 1.283
16,640 6,730
Lake Kemp Dam
Wichita River
1923
Lake Koocanusa [6]
BC MT
48°49′03″N 115°16′41″W
5,869,200 7.240
46,700 18,900
Libby Dam
Kootenai River
1975
Lake Lanier
GA
34°14′08″N 83°57′09″W
2,554,000 3.150
47,182 19,094
Buford Dam
Chattahoochee River
1956
Lake Livingston
TX
30°44′39″N 95°08′02″W
2,135,324 2.634
91,000 37,000
Livingston Dam
Trinity River
1969
Lake Marion
SC
33°27′23″N 80°19′45″W
1,230,000 1.517
110,000 45,000
Santee Dam
Santee River
1942
Lake Martin
AL
32°51′41″N 85°53′26″W
1,622,000 2.001
44,000 18,000
Martin Dam
Tallapoosa River
1927
Lake McClure [7]
CA
37°38′22″N 120°16′50″W
1,032,000 1.273
7,147 2,892
New Exchequer Dam
Merced River
1967
Lake McConaughy
NE
41°15′38″N 101°50′38″W
1,740,000 2.146
35,700 14,400
Kingsley Dam
N. Platte River
1941
Lake Mead [8]
AZ NV
36°08′28″N 114°25′46″W
28,945,000 35.703
161,000 65,000
Hoover Dam
Colorado River
1936
Lake Meredith
TX
35°38′14″N 101°39′32″W
2,434,220 3.003
21,640 8,760
Sanford Dam
Canadian River
1965
Lake Mohave
AZ NV
35°24′37″N 114°38′12″W
1,818,300 2.243
26,500 10,700
Davis Dam
Colorado River
1951
Lake Moultrie
SC
33°18′23″N 80°03′21″W
1,110,000 1.369
60,000 24,000
Pinopolis Dam
Cooper River
1942
Lake Murray
SC
34°03′52″N 81°22′07″W
2,200,000 2.714
50,000 20,000
Saluda Dam
Saluda River
1930
Lake Norman
NC
35°31′52″N 80°56′32″W
1,093,600 1.349
32,510 13,160
Cowans Ford Dam
Catawba River
1964
Lake Oahe
ND SD
45°17′53″N 100°18′08″W
23,500,000 28.987
370,000 150,000
Oahe Dam
Missouri River
1962
Lake of the Ozarks
MO
38°09′40″N 92°47′44″W
1,990,000 2.455
55,000 22,000
Bagnell Dam
Osage River
1931
Lake Oroville [9]
CA
39°34′15″N 121°27′49″W
3,537,577 4.364
15,805 6,396
Oroville Dam
Feather River
1968
Lake Ouachita
AR
34°35′46″N 93°18′58″W
2,768,000 3.414
48,300 19,500
Blakely Mountain Dam
Ouachita River
1952
Lake Pend Oreille †
ID
48°08′58″N 116°23′03″W
1,153,000 1.422
94,700 38,300
Albeni Falls Dam
Pend Oreille River
1951
Lake Pleasant [10]
AZ
33°53′22″N 112°16′52″W
1,108,600 1.367
12,040 4,870
New Waddell Dam
Agua Fria River
1994
Lake Powell [11]
AZ UT
37°19′15″N 110°47′37″W
26,214,900 32.336
163,000 66,000
Glen Canyon Dam
Colorado River
1966
Lake Ray Roberts
TX
33°24′28″N 97°01′30″W
1,931,900 2.383
29,350 11,880
Ray Roberts Dam
Elm Fork Trinity River
1986
Lake Red Rock [12]
IA
41°25′49″N 93°09′30″W
1,436,000 1.771
64,480 26,090
Red Rock Dam
Des Moines River
1969
Lake Sakakawea
ND
47°45′57″N 102°17′17″W
24,300,000 29.974
382,000 155,000
Garrison Dam
Missouri River
1953
Lake Sharpe
SD
44°11′24″N 99°40′54″W
1,910,000 2.356
56,884 23,020
Big Bend Dam
Missouri River
1966
Lake Shelbyville
IL
39°28′18″N 88°42′50″W
1,143,000 1.410
11,100 4,500
Shelbyville Dam
Kaskaskia River
1970
Lake Strom Thurmond
GA SC
33°48′48″N 82°19′01″W
3,820,000 4.712
71,100 28,800
J. Strom Thurmond Dam
Savannah River
1954
Lake Tawakoni
TX
32°48′29″N 95°55′14″W
1,660,000 2.048
35,840 14,500
Iron Bridge Dam
Sabine River
1960
Lake Texoma
OK TX
33°54′39″N 96°39′06″W
4,997,079 6.164
89,000 36,000
Denison Dam
Red River
1943
Lake Travis
TX
30°24′51″N 97°59′28″W
1,134,956 1.400
19,297 7,809
Mansfield Dam
Colorado River (Texas)
1942
Lake Umatilla
OR WA
45°47′25″N 120°03′22″W
2,530,000 3.121
55,000 22,000
John Day Dam
Columbia River
1971
Lake Wallula
OR WA
46°03′28″N 118°56′31″W
1,350,000 1.665
38,800 15,700
McNary Dam
Columbia River
1954
Lake Winnibigoshish †
MN
47°26′16″N 94°11′40″W
1,072,000 1.322
67,800 27,400
Winnibigoshish Lake Dam
Mississippi River
1884
Leech Lake †
MN
47°09′48″N 94°24′37″W
1,000,000 1.233
102,948 41,662
Leech Lake Dam
Leech Lake River
1885
Lewis Smith Lake
AL
33°57′24″N 87°06′36″W
1,390,000 1.715
21,200 8,600
Smith Lake Dam
Sipsey Fork
1961
Lewisville Lake
TX
33°06′34″N 96°58′17″W
2,082,800 2.569
23,040 9,320
Lewisville Dam
Elm Fork Trinity River
1955
Mark Twain Lake [13]
MO
39°39′16″N 91°45′13″W
2,103,120 2.594
53,200 21,500
Clarence Cannon Dam
Salt River (Missouri)
1983
Milford Lake [14]
KS
39°09′39″N 96°55′12″W
1,125,200 1.388
33,000 13,000
Milford Dam
Republican River
1967
Millwood Lake
AR
33°44′47″N 93°58′59″W
1,854,930 2.288
29,200 11,800
Millwood Dam
Little River (Red River)
1966
Navajo Lake
CO NM
36°53′47″N 107°27′48″W
1,708,600 2.108
15,610 6,320
Navajo Dam
San Juan River
1962
New Melones Lake [15]
CA
37°59′32″N 120°31′46″W
2,420,000 2.985
12,500 5,100
New Melones Dam
Stanislaus River
1979
Norfork Lake
AR MO
36°21′33″N 92°14′01″W
1,983,000 2.446
22,000 8,900
Norfork Dam
North Fork River
1944
Norris Lake
TN
36°17′25″N 83°55′02″W
2,040,000 2.516
34,200 13,800
Norris Dam
Clinch River
1936
Oologah Lake
OK
35°32′57″N 95°36′13″W
1,519,000 1.874
56,800 23,000
Oologah Dam
Verdigris River
1963
Owyhee Reservoir
OR
43°27′41″N 117°20′13″W
1,183,300 1.460
13,500 5,500
Owyhee Dam
Owyhee River
1932
Painted Rock Reservoir
AZ
33°01′37″N 112°52′00″W
2,491,700 3.073
53,200 21,500
Painted Rock Dam
Gila River
1960
Palisades Reservoir [16]
ID WY
43°14′31″N 111°07′11″W
1,401,000 1.728
16,000 6,500
Palisades Dam
Snake River
1957
Pathfinder Reservoir [17]
WY
42°25′17″N 106°54′48″W
1,016,500 1.254
22,000 8,900
Pathfinder Dam
N. Platte River
1909
Perry Lake [18]
KS
39°10′44″N 95°27′29″W
1,417,683 1.749
25,389 10,275
Perry Dam
Delaware River (Kansas)
1966
Pine Flat Lake [19]
CA
36°51′39″N 119°17′55″W
1,000,000 1.233
5,970 2,420
Pine Flat Dam
Kings River
1954
Quabbin Reservoir
MA
42°21′39″N 72°18′06″W
1,274,000 1.571
24,529 9,927
Winsor Dam , Goodnough Dike
Swift River
1939
Red Lake Reservoir †
MN
48°04′24″N 95°01′44″W
3,428,000 4.228
288,640 116,810
Lower Red Lake Dam
Red Lake River
1931
Richard B. Russell Lake
GA SC
34°05′09″N 82°38′34″W
1,488,170 1.836
26,650 10,780
Richard B. Russell Dam
Savannah River
1985
Richland-Chambers Reservoir
TX
31°58′46″N 96°11′29″W
1,743,000 2.150
44,752 18,110
Richland Creek Dam
Richland Creek
1987
Riffe Lake
WA
46°28′44″N 122°17′41″W
1,685,000 2.078
11,830 4,790
Mossyrock Dam
Cowlitz River
1968
Ross Lake
BC WA
48°51′04″N 121°01′31″W
1,435,000 1.770
11,700 4,700
Ross Dam
Skagit River
1949
Sam Rayburn Reservoir
TX
31°12′37″N 94°17′04″W
3,997,600 4.931
114,500 46,300
Sam Rayburn Dam
Angelina River
1965
San Luis Reservoir
CA
37°03′22″N 121°07′12″W
2,041,000 2.518
12,700 5,100
San Luis Dam
San Luis Creek ‡
1967
Sardis Lake
MS
34°29′16″N 89°38′37″W
1,512,000 1.865
58,500 23,700
Sardis Dam
Little Tallahatchie River
1940
Seminoe Reservoir
WY
42°02′07″N 106°50′56″W
1,017,279 1.255
20,291 8,211
Seminoe Dam
N. Platte River
1939
Shasta Lake [20]
CA
40°46′29″N 122°18′01″W
4,552,000 5.615
29,740 12,040
Shasta Dam
Sacramento River
1945
Smith Mountain Lake
VA
37°04′48″N 79°37′15″W
2,300,000 2.837
20,600 8,300
Smith Mountain Dam
Roanoke River
1963
Stockton Lake [21]
MO
37°36′43″N 93°46′16″W
1,674,000 2.065
63,200 25,600
Stockton Dam
Sac River
1969
Strawberry Reservoir
UT
40°09′55″N 111°07′32″W
1,106,500 1.365
17,163 6,946
Soldier Creek Dam
Strawberry River
1974
Table Rock Lake
AR MO
36°37′18″N 93°24′28″W
3,462,000 4.270
52,300 21,200
Table Rock Dam
White River
1958
Tenkiller Ferry Lake
OK
35°40′02″N 94°58′55″W
1,230,800 1.518
20,800 8,400
Tenkiller Ferry Dam
Illinois River (Arkansas)
1952
Theodore Roosevelt Lake
AZ
33°40′55″N 111°06′49″W
2,910,200 3.590
31,900 12,900
Theodore Roosevelt Dam
Salt River
1911
Toledo Bend Reservoir
LA TX
31°29′18″N 93°43′43″W
4,472,900 5.517
181,600 73,500
Toledo Bend Dam
Sabine River
1966
Truman Reservoir [22]
MO
38°15′26″N 93°26′18″W
5,187,000 6.398
209,300 84,700
Harry S. Truman Dam
Osage River
1979
Trinity Lake [23]
CA
40°53′00″N 122°42′26″W
2,447,650 3.019
16,535 6,691
Trinity Dam
Trinity River (California)
1962
Tuttle Creek Lake [24]
KS
39°21′15″N 96°40′36″W
3,185,700 3.930
53,760 21,760
Tuttle Creek Dam
Big Blue River
1962
Wappapello Lake
MO
36°56′50″N 90°18′45″W
1,134,600 1.400
23,200 9,400
Wappapello Dam
St. Francis River
1941
Watts Bar Lake
TN
36°46′20″N 84°40′10″W
1,175,000 1.449
39,000 16,000
Watts Bar Dam
Tennessee River
1942
Weiss Lake
AL
34°11′02″N 85°36′12″W
1,433,300 1.768
30,200 12,200
Weiss Dam
Coosa River
1961
Wheeler Lake
AL
34°42′44″N 87°08′26″W
1,050,000 1.295
67,100 27,200
Wheeler Dam
Tennessee River
1936
Lake Whitney
TX
32°51′12″N 96°31′14″W
2,100,400 2.591
60,000 24,000
Whitney Lake Dam
Brazos River
1951
Wright Patman Lake
TX
33°16′27″N 94°13′02″W
2,654,300 3.274
119,700 48,400
Wright Patman Dam
Sulphur River
1953
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