First two bridges span the Cedar River ( Renton) and the third is over the Green River (Kent). Bridges and train trestles seem to fascinate me. I should dig through my archives and do a monster bridge posting! :-). Lots of rust and creosote!
More vegetation in odd places,, broken windows and signage. Apparently King County Solid Waste Management Division is the current owner. On my to-do list is to find a contact inside the organization to field some of my questions.