The expansion joints in the on-ramps to I-5 from the West Seattle Bridge need to be repaired so that means they will be closed this weekend, through 5AM Tuesday.
UPDATE 2: West Seattle Bridge ramps to I-5 opened early
UPDATE Monday 2:22pm
WSDOT opened the I-5 on ramps from the West Seattle Bridge ahead of even their updated timing, getting the roadways open shortly after 2pm.
UPDATE Monday 9:15am
WSDOT has announced that the on ramps from the West Seattle Bridge to I-5 will reopen by 3pm today. They had orginally been set to remain closed until 5am Tuesday morning but the work was completed faster than originally anticipated.
WSDOT, working on the expansion joints in the roadway will be closing the West Seattle Bridge on-ramps to northbound and southbound I-5 from 10 p.m. Friday through 5 a.m. Tuesday.
The South Spokane Street on-ramp to southbound I-5 will remain open. Detours will be provided.
The Spokane Street Viaduct ramps to northbound and southbound I-5, and South Columbian Way will be closed from 10 p.m. Friday to 5 a.m. Tuesday.
The lower South Spokane Street ramps to northbound I-5 and South Columbian Way will be closed from 10 p.m. Friday to 5 a.m. Tuesday.
The left lane of eastbound lower South Spokane Street will be closed east of Sixth Avenue South from 8 p.m. Friday to 5 a.m. Tuesday.