This may be the best weekend of the summer not to drive.
Here’s a rundown on construction-related closures, some of which we recently mapped out for you.
The four biggest shutdowns this weekend:
- Interstate 5 northbound, two right lanes will close from 10 p.m. Friday until 5 a.m. Monday, at the West Seattle Bridge exit.
- I-5 northbound, two lanes at the Ship Canal Bridge closed from 3:30 to 11 a.m. both Saturday and Sunday; on Saturday one lane will stay closed until dusk, and on Sunday one lane stays closed until 4 p.m.
- Highway 520, closed between the Montlake Boulevard exit and I-405 all weekend, from 11 p.m. Friday until 5 a.m. Monday.
- Highway 99, closed southbound along the entire Alaskan Way Viaduct from 10 p.m. Friday until 5 a.m. Monday.
King County Metro Transit says buses will be re-routed. Sound Transit 545 and Metro routes 255, 271 and 280 will use I-90 during the closure of the Highway 520 floating bridge. With the viaduct closed, the RapidRide C Line to West Seattle and Route 120 to Delridge-White Center must run through Sodo outbound.
And there will be a few lesser disruptions, including these:
- I-5 northbound, a single lane closes near the Interurban Avenue South exit in Tukwila, from 6 a.m. until 2 p.m. Saturday.
- Fourth Avenue South, the Argo Bridge will have shifting lane closures Sunday morning for painting, from 7 a.m. until possibly noon.
- Fremont Bridge, the Fremont 5K and Briefcase Relay will pass through North 34th Street and other roads between 5:45 p.m. and 9 p.m. Friday.