August 16, 2017

Work to replace the deck on the Morrison Bridge lift span will impact traffic at several times this week:

Thursday, August 17: From 8 p.m. on Thursday until as late as 2 a.m. Friday there will be multiple openings of the drawbridge as part of the rebalancing of the east leaf.  The lifts could last as long as 30 minutes. Bridge users can avoid delays by using an alternate crossing such as the Hawthorne or Burnside bridge. A heavier deck has been installed on the east leaf, which will go back into operation next week.  Balance tests need to be performed before the east leaf can reopen for river traffic.

Friday-Saturday, August 18-19: The bridge will close to all users between 9 p.m. Friday and as late as midnight on Saturday while the contractor changes out the metal parts that the east drawbridge leaf rests on in the down position. Temporary “live load shoes” used during construction will be replaced with the permanent parts.

During the bridge closure:

  • Alternate river crossings for all modes include the Hawthorne and Burnside bridges.
  • Ramps between the Morrison Bridge and Interstate 5 and Interstate 84 will be closed, except for the ramp from the Morrison Bridge westbound to I-5 north. 
  • Motorists can access I-84 eastbound at NE Grand Avenue and NE Everett Street.
  • I-5 north can be accessed from the west side via I-405 north (Fremont Bridge). Eastside access is from the ramp at NE Broadway and N Williams Ave. 
  • To access downtown from I-5 south or I-84 west, I-5 south drivers can exit at the Rose Quarter/Broadway Bridge and I-84 westbound drivers can exit at Rose Quarter/Weidler exits.
  • I-5 south traffic can access the onramp to Highway 99E/U.S. 26. 

Another bridge closure is scheduled from 9 p.m. on Friday, August 25 until Saturday night, August 26 as the contractor jacks the west leaf of the lift span.  Work shifts to the west leaf next week.

The contractor expects to complete construction by the end of October 2017.  Multnomah County maintains the Morrison Bridge and five other Willamette River bridges. For more information, visit www.multco.us/bridges or follow @MultcoBridges on Twitter.