Largest
U.S. Reservoirs
| Order |
Name |
Reservoir |
State |
Capacity (Cubic Meters) |
Year Completed |
| 1 |
Hoover |
Lake Mead |
Nevada |
34850000 |
1936 |
| 2 |
Glen Canyon |
lake Powell |
Arizona |
33300000 |
1966 |
| 3 |
Garrison |
Lake Sakakawea |
North Dakota |
27920000 |
1953 |
| 4 |
Oahe |
Lake Oahe |
South Dakota |
27430000 |
1958 |
| 5 |
Fort Peck |
Fort Peck Lake |
Montana |
22120000 |
1937 |
| 6 |
Grand Coulee |
F.D.Roosevelt Lake |
Washington |
11790000 |
1942 |
| 7 |
Libby |
Lake Koocanusa |
Montana |
7170000 |
1973 |
| 8 |
Fort Randall |
Lake Francis Case |
South Dakota |
5700000 |
1952 |
| 9 |
Shasta |
lake Shasta |
California |
5610000 |
1945 |
| 10 |
Toledo Bend |
Toledo Bend Lake |
Lousiana |
5520000 |
1968 |
Source: USCOLD Register of Dams