Lane and ramp closures on I-5, SR 516 and SR 509 in Burien, Des Moines, SeaTac and Kent continue this week, from Wednesday, Nov. 12 through the morning of Friday, Nov. 14.

The lane and ramp closures on I-5 and SR 516 will allow crews to pave and stripe the road.

This work is weather dependent and may be rescheduled in the event of rain.

The SR 509 lane and ramp closures will allow crews to install signage and perform electrical work.

This work is part of the SR 509 Completion Project.

I-5 lane closure information 

Wednesday, Nov. 12 through the morning of Thursday, Nov. 13:

  • 9 a.m. to 4 a.m. – Up to three lanes of northbound I-5 will close overnight between SR 516 (Exit 149) and the exit to 24th Avenue South (Exit 150).

Wednesday, Nov. 12 through the morning of Friday, Nov. 14:

  • 9 p.m. to 4:30 a.m. – Up to two lanes of northbound I-5 will close nightly between South 272nd Street (Exit 147) and SR 516 (Exit 149).

I-5 ramp closure information 

Wednesday, Nov. 12 through the morning of Thursday, Nov. 13:

  • 9:30 p.m. to 3:30 a.m. – The northbound I-5 exit to SR 516 will close overnight. A signed detour will be in place.

Wednesday, Nov. 12 through the morning of Friday, Nov. 14:

  • 9:30 p.m. to 3:30 a.m. – The northbound I-5 exit to 24th Avenue South will close nightly. A signed detour will be in place.

SR 509 ramp closure information 

Wednesday, Nov. 12 through the morning of Thursday, Nov. 13:

  • 9 p.m. to 5 a.m. – The South 160th Street on-ramp to southbound SR 509 will close overnight. A signed detour will be in place.

Wednesday, Nov. 12 through the morning of Friday, Nov. 14:

  • 10:30 p.m. to 4 a.m. – The 24th Avenue South on-ramp to southbound SR 509 will close nightly. A signed detour will be in place.

SR 516 lane closure information 

Wednesday, Nov. 12 through the morning of Friday, Nov. 14:

  • 8 p.m. to 5 a.m. – One lane in each direction of SR 516 will close nightly between Military Road South and SR 99.

SR 509 Completion Project information

The SR 509 Completion Project builds 3 miles of new tolled highway between I-5 and South 188th Street near the south end of Seattle-Tacoma International Airport. The new highway will be completed in stages. The portion between I-5 and 24th Avenue South opened on June 28 and a new tunnel under I-5 at the SR 516 interchange opened on July 16. The final stage builds the remaining 2 miles of the expressway between 24th Avenue South and South 188th Street.

The entire project is planned for completion by 2029.

Puget Sound Gateway Program overview

The SR 509 Completion Project is part of WSDOT’s Puget Sound Gateway Program, which also includes the SR 167 Completion Project in Pierce County. Together, the two completion projects finish critical missing links in Washington’s highway and freight network.