Historic Crests
(1) 473.72 ft on 04/19/2013
(2) 472.21 ft on 09/16/2008
(3) 471.49 ft on 02/22/2018 (P)
(4) 470.83 ft on 05/02/2019
(5) 470.23 ft on 03/11/2009
(6) 468.87 ft on 12/29/2008
(7) 468.06 ft on 12/30/2015 (P)
(8) 468.00 ft on 05/13/2002
(9) 467.86 ft on 06/17/2015 (P)
(10) 467.80 ft on 12/12/2005
(11) 467.60 ft on 01/09/2008
(12) 466.46 ft on 05/02/2017
(13) 465.00 ft on 02/17/2008
(14) 464.33 ft on 03/31/2017
(15) 464.29 ft on 06/24/2010
(16) 464.10 ft on 07/23/2017
(17) 463.80 ft on 03/01/2007
(18) 463.65 ft on 10/16/2017 (P)
(19) 463.50 ft on 02/10/2008
(20) 463.10 ft on 12/23/2006
(21) 463.10 ft on 03/03/2008
(22) 462.00 ft on 06/07/2001
(23) 461.70 ft on 10/26/2001

(P): Preliminary values subject to further review.