King County operates the public network in this corner of the county and says so in its own words, so the destination is never a guess.
The South County Recycling & Transfer Station at 35101 West Valley Hwy, Algona, WA is the nearest County site, open Monday to Friday from 7 a.m. to 4:30 p.m. and at weekends from 8:30 a.m. to 5:30 p.m., taking a vehicle and trailer combination up to 40 feet. It also runs a household hazardous waste drop-off for households and qualifying small businesses, shut every Wednesday.
North of that, the Bow Lake Recycling & Transfer Station at 18800 Orillia Rd S, Tukwila, WA is the one with the unusual opening: the station building runs 24 hours a day from Monday through Thursday, with Friday closing at 11:30 p.m. and weekend hours from 8:30 a.m. to 5:30 p.m. That is the single most useful scheduling fact in south King County, and it is why a tight project timeline often routes north. The County takes waste enquiries on 206-477-4466.
Mixed construction and demolition loads are different again. Those must reach a site King County has designated, and every designated site on the County's published list is privately owned, so we route the load rather than handing you a public address. Material separated at the jobsite is released from that rule. Your account manager names the receiving site before delivery and re-checks it before the lift.