I-5 Traffic to be Detoured in Portland April 23 and 30

Oregon I-5 Traffic | Oregon I-5 Construction | I-5 Bridge | I-5 Exit Guide

The Oregon Department of Transportation reports that southbound I-5 traffic over the lower deck of the Marquam Bridge will close on two upcoming Sunday nights for bridge inspection.

The closures will begin at 10:00 p.m. on Sunday, April 23, and again on Sunday, April 30, with reopening by 5:00 a.m. the following morning.

I-5 Traffic detour information

  • Through traffic on southbound I-5 should take Interstate 405 south over the Fremont Bridge to where it meets southbound I-5 again.
  • Traffic on westbound Interstate 84 headed for southbound I-5 should take I-5 north to the Fremont Bridge and then take I-405 south to where it meets southbound I-5.

In addition

  • The eastbound Morrison Bridge on-ramp to northbound I-5 and to eastbound I-84 will be closed from 9:00 p.m. Monday, May 1, to 5:00 a.m. Tuesday, May 2.
  • The westbound Morrison Bridge on-ramp to ramp to northbound I-5 will be closed from 10:00 p.m. Tuesday, May 2, to 5:00 a.m. Wednesday, May 3.

All bridges undergo inspection every two years as required by federal law.

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