Historic Crests
(1) 585.20 ft on 04/13/1952 (P)
(2) 584.79 ft on 04/01/1972 (P)
(3) 584.70 ft on 03/08/1973
(4) 584.70 ft on 03/15/1929 (P)
(5) 583.50 ft on 06/23/1990 (P)
(6) 580.75 ft on 04/27/2011
(7) 580.50 ft on 04/14/2014

(P): Preliminary values subject to further review.