Historic Crests
(1) 1,021.80 ft on 04/05/1977
(2) 1,019.06 ft on 02/07/2020
(3) 1,017.32 ft on 03/18/2002
(4) 1,013.67 ft on 02/11/1994
(5) 1,013.52 ft on 03/05/2015
(6) 1,013.33 ft on 03/29/2021 (P)
(7) 1,013.30 ft on 05/08/1984
(8) 1,013.22 ft on 02/16/2003
(9) 1,012.69 ft on 04/19/1998 (P)
(10) 1,012.12 ft on 12/03/1991
(11) 1,010.20 ft on 06/16/1989
(12) 1,009.09 ft on 12/01/1996
(13) 1,008.90 ft on 01/01/1967
(14) 1,008.70 ft on 03/04/1997
(15) 1,008.66 ft on 03/24/1993
(16) 1,007.45 ft on 04/24/2017
(17) 1,006.90 ft on 03/28/1994
(18) 1,006.60 ft on 03/23/1991
(19) 1,006.49 ft on 04/13/2020
(20) 1,005.42 ft on 04/16/2011
(21) 1,005.00 ft on 01/04/1982
(22) 1,004.63 ft on 12/23/1990
(23) 1,004.57 ft on 04/11/2003 (P)
(24) 1,003.80 ft on 04/17/1998 (P)
(25) 1,003.20 ft on 03/06/2004 (P)
(26) 1,003.13 ft on 01/31/2013
(27) 1,003.11 ft on 02/21/2019
(28) 1,003.10 ft on 04/04/2000 (P)
(29) 1,002.51 ft on 02/24/2019
(30) 1,002.50 ft on 03/30/1975
(31) 1,002.40 ft on 04/13/1994
(32) 1,002.40 ft on 04/09/2003 (P)
(33) 1,002.19 ft on 03/02/2021 (P)

(P): Preliminary values subject to further review.