The closure affects four miles of freeway for construction work on the Southwest 26th Avenue bridge crossing the freeway.

Northbound on-ramp closures:
Southwest Kruse Way.
Southwest Haines Street.
Southwest Capitol Highway.
Southwest Spring Garden Street.
OR 99W/Barbur Boulevard.

Southbound on-ramp closures:
I-405 on-ramp.
South Harbor Drive on-ramp.