Historic Crests
(1) 456.62 ft on 04/24/1966
(2) 455.36 ft on 05/11/1979
(3) 454.71 ft on 03/09/2016
(4) 454.49 ft on 04/28/2009
(5) 454.08 ft on 03/20/2012
(6) 453.17 ft on 05/11/2015

(P): Preliminary values subject to further review.