Historic Crests
(1) 401.20 ft on 03/21/1897
(2) 396.11 ft on 03/20/1973
(3) 395.30 ft on 02/26/2019 (P)
(4) 392.70 ft on 01/02/1927
(5) 392.42 ft on 02/06/1957
(6) 392.29 ft on 02/16/1948
(7) 391.61 ft on 01/13/1946
(8) 390.70 ft on 05/12/2003
(9) 390.42 ft on 12/12/2004
(10) 389.05 ft on 04/10/1936
(11) 389.00 ft on 01/14/1974
(12) 388.96 ft on 03/17/1963
(13) 388.76 ft on 03/03/1962
(14) 387.89 ft on 03/24/1980
(15) 387.88 ft on 03/17/1975
(16) 387.87 ft on 03/31/1965
(17) 387.25 ft on 05/11/1984
(18) 386.68 ft on 01/08/1949
(19) 386.65 ft on 12/04/1991
(20) 386.44 ft on 11/21/1957
(21) 386.10 ft on 03/29/1994
(22) 386.09 ft on 05/23/1983
(23) 386.04 ft on 04/01/1944
(24) 385.90 ft on 03/27/1929
(25) 385.58 ft on 03/22/1955
(26) 385.55 ft on 01/26/1954
(27) 385.54 ft on 02/17/1939
(28) 385.44 ft on 03/30/1951
(29) 385.10 ft on 03/16/1922
(30) 384.64 ft on 01/29/2002
(31) 383.99 ft on 02/14/1950
(32) 383.87 ft on 01/27/1937
(33) 383.73 ft on 01/20/1947
(34) 383.71 ft on 01/03/1943
(35) 383.57 ft on 02/22/1990
(36) 383.39 ft on 03/09/1989
(37) 383.23 ft on 02/05/1956
(38) 382.46 ft on 03/08/1934
(39) 382.45 ft on 01/04/1970
(40) 382.43 ft on 04/08/1978
(41) 382.36 ft on 02/23/1933
(42) 382.00 ft on 03/06/1997
(43) 381.60 ft on 02/08/1932
(44) 381.27 ft on 02/07/1969
(45) 381.01 ft on 03/12/1961
(46) 380.85 ft on 02/23/1945
(47) 379.88 ft on 03/09/1979
(48) 379.58 ft on 03/20/1964
(49) 379.38 ft on 05/09/2013
(50) 379.02 ft on 12/02/2011
(51) 379.02 ft on 05/08/2009
(52) 378.83 ft on 04/20/1998
(53) 378.66 ft on 03/03/1987
(54) 378.44 ft on 05/04/2010
(55) 378.18 ft on 04/05/2000
(56) 376.97 ft on 01/24/1999
(57) 376.47 ft on 01/07/1982
(58) 376.03 ft on 02/24/1971
(59) 375.82 ft on 01/30/1996
(60) 375.81 ft on 01/16/1972
(61) 375.60 ft on 03/27/1993
(62) 375.48 ft on 03/09/1995
(63) 373.99 ft on 02/21/2001
(64) 373.25 ft on 02/18/1966
(65) 372.95 ft on 01/24/2006
(66) 372.77 ft on 03/05/1960
(67) 372.51 ft on 01/13/1968
(68) 370.68 ft on 03/11/1977
(69) 370.68 ft on 03/11/1967
(70) 370.54 ft on 12/16/2008
(71) 370.31 ft on 02/25/2005
(72) 369.66 ft on 01/21/1988
(73) 369.49 ft on 01/24/1959
(74) 369.27 ft on 02/06/1985
(75) 368.11 ft on 01/05/1976
(76) 367.44 ft on 02/06/2014
(77) 366.93 ft on 01/07/2007
(78) 365.89 ft on 02/21/1986
(79) 364.48 ft on 02/02/2012
(80) 364.28 ft on 06/06/1981

(P): Preliminary values subject to further review.