Historic Crests
(1) 861.19 ft on 04/10/1964
(2) 857.65 ft on 03/30/1980
(3) 856.12 ft on 04/18/1979
(4) 853.25 ft on 09/23/2009
(5) 851.65 ft on 03/06/2019
(6) 851.39 ft on 05/05/1963
(7) 850.36 ft on 07/15/2005
(8) 848.89 ft on 03/25/1952
(9) 848.41 ft on 06/24/1989
(10) 847.95 ft on 02/06/1981

(P): Preliminary values subject to further review.