The nine-day closure of the northbound span of the I-5 Interstate Bridge begins this Saturday when crews will replace mechanical parts that help lift and lower the bridge.
On the morning of Saturday, Sept. 12, crews will install the zipper barrier and begin the work to move northbound traffic onto the southbound span of the bridge. By Saturday afternoon I-5 traffic in both directions will share the three lanes on the southbound span of the bridge.
During the bridge closure, four ramps in the project area will fully close for nine days for traffic control and to ensure a safe work zone. The northbound span of the bridge is scheduled to reopen at 11:59 p.m. Sunday, Sept. 20.
Expect heavy traffic, congestion and long delays traveling throughout the region on I-5, I-205, I-84, SR 14 and local streets in south Vancouver and north Portland.
• Nighttime lane closures Friday, Sept. 11 on I-5 at the Interstate Bridge in Washington and Oregon. Double lane closures will begin at 8 p.m. for both directions of I-5 as crews install the zipper barrier.
• Full closure of northbound span of the Interstate Bridge from Saturday, Sept. 12 to Sunday, Sept. 20. Once the zipper barrier is in place, I-5 traffic in both directions will share the three lanes on the southbound span of the bridge.
• Full ramp closures from Saturday, Sept. 12 to Sunday, Sept. 20:
- Marine Drive on-ramp to I-5 north in Portland.
- Hayden Island on-ramp to I-5 north in Portland.
- I-5 north to SR 14 off-ramp in Vancouver.
- SR 14/Washington Street on-ramp to I-5 south in Vancouver.
• The northbound sidewalk of the Interstate Bridge is closed from Saturday, Sept. 12 to Sunday, Sept. 20. Bike and pedestrian travelers crossing the Interstate Bridge in both directions will share the sidewalk on the southbound span of the bridge.