Historic Crests
(1) 506.44 ft on 05/18/2020
(2) 506.38 ft on 04/19/2013
(3) 506.35 ft on 09/15/2008
(4) 505.70 ft on 02/22/2018
(5) 505.23 ft on 12/04/1982
(6) 504.70 ft on 07/14/1957
(7) 504.50 ft on 11/29/1990
(8) 504.29 ft on 02/22/1997
(9) 503.50 ft on 02/24/1985
(10) 502.87 ft on 08/25/2007
(11) 498.89 ft on 05/02/2017
(12) 495.02 ft on 07/23/2017
(13) 494.10 ft on 05/11/2017

(P): Preliminary values subject to further review.