Night lane closures begin this week on the northbound span of the Interstate Bridge and will continue through Wednesday night Sept. 19.
On Thursday, Sept. 6, multiple night lifts of the northbound span will take place 9 p.m. to 6 a.m., with night lane closures in the days to follow.
On the next night, Friday, Sept. 7, the left lane and center lane will close, 9 p.m. to 6 a.m. On the night after that, Saturday, Sept. 8, the center lane and left lane will close during the same hours.
The closures will then alternate back and forth on each night after that, the left and center lanes on one night followed by center and right lanes on the next night.
In addition, there will be multiple night lifts of the northbound span Tuesday, Sept. 18 and Wednesday Sept. 19, 9 p.m. to 6 a.m.
The closures are necessary to allow crews to rehabilitate the draw span machinery.
The work will also require the nightly closure of the sidewalk on the northbound span, 9 p.m. to 6 a.m. The sidewalk on the southbound span, however, will remain open at all times to people walking or riding bikes.
The Interstate Bridge is owned jointly by Oregon and Washington and is operated and maintained by ODOT. The northbound span opened in 1917 and the southbound span in 1958.