Historic Crests
(1) 1,655.46 ft on 04/19/1979
(2) 1,654.94 ft on 04/30/1970
(3) 1,654.80 ft on 06/01/2011
(4) 1,654.05 ft on 04/10/1969
(5) 1,653.86 ft on 06/05/2013
(6) 1,653.39 ft on 04/10/1996
(7) 1,653.29 ft on 04/29/1975
(8) 1,653.03 ft on 01/01/1939
(9) 1,652.40 ft on 04/13/2009
(10) 1,652.28 ft on 04/06/1951
(11) 1,652.27 ft on 04/04/1949
(12) 1,650.84 ft on 03/24/1976
(13) 1,649.25 ft on 03/16/1972
(14) 1,649.13 ft on 06/28/2005
(15) 1,648.87 ft on 03/27/1960
(16) 1,648.65 ft on 07/16/1999
(17) 1,648.63 ft on 03/30/2005
(18) 1,648.61 ft on 03/24/1947
(19) 1,648.54 ft on 04/01/1952
(20) 1,648.14 ft on 03/31/1955
(21) 1,648.09 ft on 03/29/1997
(22) 1,648.06 ft on 04/16/1950
(23) 1,647.99 ft on 03/31/1983
(24) 1,647.86 ft on 03/30/2005
(25) 1,647.79 ft on 03/27/1999
(26) 1,647.56 ft on 03/27/1978
(27) 1,647.52 ft on 03/13/1995
(28) 1,647.36 ft on 06/09/1963
(29) 1,647.21 ft on 04/14/1982
(30) 1,647.09 ft on 03/31/2010
(31) 1,642.16 ft on 03/15/2001
(32) 1,642.16 ft on 03/18/2003
(33) 1,642.05 ft on 06/13/2004
(34) 1,641.48 ft on 03/27/2001
(35) 1,641.25 ft on 03/14/2012
(36) 1,640.98 ft on 06/02/2007
(37) 14.18 ft on 06/30/2014
(38) 10.00 ft on 03/11/2015
(39) 8.40 ft on 07/04/2000
(40) 7.26 ft on 06/02/2016
(41) 6.98 ft on 04/12/2002
(42) 6.36 ft on 04/04/2006
(43) 5.63 ft on 06/14/2008

(P): Preliminary values subject to further review.