Observation history unavailable for thie location.
Flood Impacts
640.0
Water begins to go over the protective earthen dikes.
639.0
Water begins to flow over lock walls.
638.4
Water levels reach the flood of record.
636.0
Lock and dam 8 is closed to navigation.
Historical Crests
Low Water Records
1) 638.40 ft on 04/22/1965
2) 636.45 ft on 04/12/1997
3) 636.21 ft on 04/18/2001
4) 635.24 ft on 04/20/1969
5) 634.52 ft on 04/20/1952
6) 633.94 ft on 06/26/1993
7) 633.90 ft on 04/20/1951
8) 633.86 ft on 05/03/1975
9) 633.35 ft on 04/07/1967
10) 633.10 ft on 04/09/1986
1) 615.30 ft on 08/18/1936
2) 616.10 ft on 10/09/1937
3) 617.40 ft on 01/21/1938
4) 619.70 ft on 01/28/1977
4) 619.70 ft on 12/14/1980