Historic Crests
(1) 411.11 ft on 01/04/1907
(2) 408.90 ft on 03/14/1977
(3) 408.00 ft on 03/05/1979
(4) 408.00 ft on 09/09/2011
(5) 407.85 ft on 01/09/1998
(6) 407.35 ft on 06/29/2006
(7) 407.20 ft on 06/29/2013
(8) 406.25 ft on 04/29/2011
(9) 405.60 ft on 03/16/2007
(10) 405.55 ft on 04/04/2005
(11) 405.35 ft on 03/31/2014
(12) 405.20 ft on 04/25/1977
(13) 405.10 ft on 05/25/2004
(14) 405.00 ft on 03/12/2011
(15) 404.70 ft on 06/14/2013
(16) 404.70 ft on 01/26/2010
(17) 404.30 ft on 05/17/2014
(18) 403.95 ft on 03/28/2004
(19) 403.75 ft on 12/12/2004
(20) 403.70 ft on 06/26/2013
(21) 403.65 ft on 12/22/2013
(22) 403.55 ft on 11/21/2003
(23) 403.45 ft on 04/04/2015
(24) 403.40 ft on 03/07/2004
(25) 403.40 ft on 12/02/2004
(26) 403.40 ft on 03/30/2005
(27) 403.20 ft on 03/07/2011
(28) 403.15 ft on 08/29/2011
(29) 403.10 ft on 02/26/2016
(30) 403.00 ft on 03/19/2011
(31) 403.00 ft on 10/17/2014

(P): Preliminary values subject to further review.