Historic Crests
(1) 232.90 ft on 03/28/1914
(2) 229.20 ft on 03/19/1936
(3) 228.90 ft on 03/28/1913
(4) 228.00 ft on 01/20/1996
(5) 227.70 ft on 04/02/1916
(6) 227.70 ft on 03/15/1929
(7) 227.00 ft on 03/16/1986
(8) 226.50 ft on 06/29/2006
(9) 226.50 ft on 02/19/1976
(10) 226.50 ft on 03/14/1977
(11) 226.41 ft on 08/29/2011
(12) 226.00 ft on 03/22/1980
(13) 226.00 ft on 03/15/2007
(14) 225.90 ft on 04/04/2005
(15) 225.00 ft on 03/06/1979
(16) 224.60 ft on 01/10/1998
(17) 224.50 ft on 10/17/1977
(18) 224.50 ft on 03/06/1964
(19) 224.00 ft on 04/17/2007
(20) 224.00 ft on 10/17/1955
(21) 223.82 ft on 02/22/2018
(22) 223.00 ft on 01/26/2010
(23) 222.63 ft on 01/14/2018
(24) 222.10 ft on 02/20/1981
(25) 221.60 ft on 12/14/1983
(26) 220.86 ft on 01/13/2014
(27) 220.00 ft on 06/14/2013
(28) 213.90 ft on 02/12/1981

(P): Preliminary values subject to further review.