(a couple miles upstream from where our two main routes out, 124th and Woodinville-Duvall, cross the valley. When this hits about 57' 124th goes underwater and at about 62' Woodinville-Duvall is submerged. Even if it doesn't hit these the roads may go underwater, as these numbers were taken when the river was still rising and I'm not sure of the time lag so couldn't back it down to the actual heights which would later cause downstream flooding.)
(When this hits about 38' 124th goes underwater, when it hits 42.5' Woodinville-Duvall Rd is submerged. Same caveat as before, except in reverse - by the time this hits 38' 124th is already underwater...)