| 654.5 | Water begins to flow over the lock walls and the protective earthen dikes. | | 653.0 | Water levels reach the flood of record. | | 651.5 | Lock and dam 6 is closed to navigation. |
|
1) 653.02 ft on 04/21/1965
2) 651.43 ft on 04/18/2001
3) 651.40 ft on 04/11/1997
4) 650.80 ft on 04/19/1969
5) 649.98 ft on 04/20/1952
|
1) 631.04 ft on 07/30/1936
2) 633.71 ft on 01/01/1937
3) 636.89 ft on 01/28/1944
|
|
