Multnomah County says four of the six lanes on the Morrison Bridge will be closed for construction starting Monday morning.
The county says crews will be doing a series of bridge openings starting at 11 p.m. Sunday night to prepare for the construction.
Work to replace the lift span deck will close four traffic lanes from April 3 through October 2017, with a single lane open in each direction.
Multnomah County says several night-time bridge closures are expected this spring but two-way traffic will be maintained on the bridge at other times.
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