Historic Crests
(1) 693.60 ft on 03/27/1977
(2) 693.11 ft on 05/10/2015
(3) 693.00 ft on 10/08/1970
(4) 692.98 ft on 04/07/1975
(5) 692.98 ft on 04/01/1983

(P): Preliminary values subject to further review.