Seattle area traffic news from WSDOT

Updates on upcoming projects and events that could affect your travel plans.

Four-day closure on SR 99 just around the corner

With just over a week until State Route 99 closes for four days in Seattle, it’s time to get your travel plans in place. The upcoming closure is expected to cause backups on city streets and increase delays on Interstate 5.

Both directions of SR 99 will be closed between South Spokane Street and Valley Street from 10 p.m. Friday, Aug. 22 to5 a.m. Monday, Aug. 25. The section of SR 99 between Spokane Street and the south end of the Battery Street Tunnel will reopen just before the Monday morning commute, however, the highway will remain closed through the tunnel to Valley Street until 5 a.m. Wednesday, Aug. 27.

During the closure, contractor crews will demolish and replace the section of SR 99 that crosses above Broad Street. They will also replace more than 80 damaged or cracked concrete road panels between South Spokane and South Holgate streets.

Overnight maintenance work on I-5

While most of us will be home and possibly already sound asleep, there are some maintenance closures to pass along for the late night/overnight drivers.

Tunnel maintenance:

  • Thursday, Aug. 14 to the morning of Friday, Aug. 15 –Two left lanes of northbound I-5 under the Washington State Convention Center to Olive Way will be closed from 11:30 p.m. to 3 a.m..
  • Saturday, Aug. 16The three right lanes of northbound I-5 from under the Washington State Convention Center to Olive Way will be closed from 12:30 to 5 a.m.

Pavement patching:

  • Monday, Aug. 18 to the morning of Tuesday, Aug. 19 – The Lake City Way on-ramp to southbound I-5 will close from 10 p.m. to 5 a.m. Drivers will follow a signed detour.
  • Tuesday, Aug. 19 to the morning of Wednesday, Aug. 20 – The Northeast Ravenna Boulevard to Southbound I-5 will close from 10 p.m. to 5 a.m. Drivers will follow a signed detour.
  • Thursday, Aug. 21 to the morning of Friday, Aug. 22 – The Mercer Street on-ramp to southbound I-5 will close from 10 p.m. to 5 a.m. Drivers will follow a signed detour.

Other events to note

Several special events will be popping up throughout the next week that could impact your travel plans. To avoid feeling frustrated and wondering about the extra traffic, I’ve got you covered. Please note the following events:

Saturday, Aug. 16:

  • Seattle Hempfest, 10 a.m. – 8 p.m., Seattle waterfront

Sunday, Aug. 17:

  • Iron Girl Triathlon, 6:45 a.m., Genesee Park
  • Seattle Hempfest, 10 a.m. – 8 p.m., Seattle waterfront
  • Seattle Storm vs. Phoenix Mercury, 6 p.m., KeyArena

Wednesday, Aug. 20:

  • Sounders FC vs. San Jose Earthquakes, 7 p.m., CenturyLink Field