Seattle Department of Transportation: W Seattle lower bridge support dome, housing hydraulics
Seattle Department of Transportation: Backup piston assembly on site | June 22, 2018
Seattle Department of Transportation: W Seattle Lower Bridge | Old piston assembly readied for 06.23.18 removal
Seattle Department of Transportation: Crews prepping the new piston assembly for the W Seattle Lower Bridge
Seattle Department of Transportation: Prepping the damaged assembly for pullout.