Historic Crests
(1) 197.10 ft on 04/13/1979
(2) 194.90 ft on 04/05/1977
(3) 194.00 ft on 07/19/1916
(4) 194.00 ft on 03/30/1951
(5) 193.60 ft on 02/23/1961
(6) 193.50 ft on 12/03/1983
(7) 193.30 ft on 01/06/1949
(8) 192.80 ft on 11/15/1929
(9) 192.50 ft on 02/10/1946
(10) 192.40 ft on 11/29/1948
(11) 191.00 ft on 04/13/1974
(12) 190.00 ft on 03/14/1975
(13) 190.00 ft on 05/20/1930
(14) 189.80 ft on 04/03/2000
(15) 189.67 ft on 01/07/2009
(16) 189.53 ft on 12/25/2015 (P)
(17) 189.30 ft on 03/30/1981
(18) 188.52 ft on 01/27/1996
(19) 188.30 ft on 01/25/2002
(20) 188.29 ft on 11/24/2004

(P): Preliminary values subject to further review.