Historic Crests
(1) 1,048.29 ft on 03/10/1950
(2) 1,048.28 ft on 03/23/1951
(3) 1,048.10 ft on 11/12/1953
(4) 1,048.07 ft on 03/07/1956
(5) 1,047.74 ft on 04/14/1952
(6) 1,047.70 ft on 04/17/1949
(7) 1,047.45 ft on 10/28/1961
(8) 1,047.40 ft on 06/28/1948
(9) 1,047.38 ft on 03/03/1957
(10) 1,047.28 ft on 04/09/1988
(11) 1,047.26 ft on 07/01/1984
(12) 1,047.26 ft on 04/18/1983
(13) 1,047.21 ft on 03/19/1974
(14) 1,047.21 ft on 04/22/1979
(15) 1,047.01 ft on 09/02/2011
(16) 1,047.00 ft on 09/17/2015
(17) 1,046.95 ft on 05/03/2013
(18) 1,046.95 ft on 09/02/2017
(19) 1,046.88 ft on 05/02/2020 (P)
(20) 1,046.88 ft on 10/24/2013
(21) 1,046.87 ft on 05/01/2009
(22) 1,046.85 ft on 05/16/2019
(23) 1,046.85 ft on 09/21/2016
(24) 1,046.84 ft on 09/18/2018
(25) 1,046.83 ft on 05/26/2010
(26) 1,046.81 ft on 09/25/2012
(27) 1,046.79 ft on 09/06/2014

(P): Preliminary values subject to further review.