Historic Crests
(1) 917.11 ft on 06/02/1972
(2) 916.45 ft on 05/12/2018 (P)
(3) 914.89 ft on 06/02/2017
(4) 914.58 ft on 06/13/2011
(5) 914.19 ft on 05/15/2013
(6) 913.11 ft on 05/25/2014
(7) 913.05 ft on 07/03/2012
(8) 912.76 ft on 04/25/2016
(9) 912.01 ft on 09/09/2015

(P): Preliminary values subject to further review.