Historic Crests
(1) 571.02 ft on 02/25/2019
(2) 570.91 ft on 04/08/1977
(3) 570.90 ft on 03/06/1979
(4) 570.88 ft on 03/19/1990
(5) 570.34 ft on 02/19/1990
(6) 569.96 ft on 03/23/1980
(7) 568.37 ft on 12/31/2015 (P)
(8) 567.98 ft on 03/11/1996
(9) 567.53 ft on 05/10/2003
(10) 566.86 ft on 10/07/1995
(11) 566.57 ft on 05/22/2003
(12) 566.33 ft on 03/03/1987
(13) 565.77 ft on 05/05/1997
(14) 564.93 ft on 04/01/1994
(15) 564.88 ft on 01/08/2009
(16) 564.55 ft on 04/17/2011
(17) 564.43 ft on 06/06/2001
(18) 564.23 ft on 05/20/2010
(19) 564.14 ft on 06/18/1995
(20) 564.06 ft on 05/05/2002
(21) 564.02 ft on 05/23/2008
(22) 563.96 ft on 05/15/2005
(23) 563.89 ft on 06/22/2004
(24) 563.84 ft on 06/16/2012

(P): Preliminary values subject to further review.