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Extended closure planned for Burnside Bridge

Starting Friday, the bridge will be shut for up to 5 nights for concrete repairs

The Burnside Bridge will close for repairs Friday night and could be shut down until the following Wednesday, Multnomah County officials said Monday.

The bridge will close at 8 p.m. on Friday, March 2, and could stay closed until as late as 6 a.m. on Wednesday, March 7, to allow workers to pour concrete for a new lift span deck and sidewalk.

During the closure, TriMet bus routes 12-Sandy, 19-Glisan and 20-Burnside will use the Morrison Bridge, the county said in a news release. The bridge's sidewalks and paths will remain open Friday night and at other times throughout the closure when concrete is not being poured. The newly-placed concrete must harden without vibrations from traffic to prevent cracking.

Concrete is scheduled to be placed March 3 from 7 a.m. until noon and March 5 from 7 a.m. until 10 a.m.

This weekend's work would complete the deck replacement phase of a two-year plan to overhaul the 80-year-old bridge. The next and final phase of the project will repair or replace the bridge's lift mechanisms.

In the event of heavy rain, workers will postpone the repair work until the following weekend.