NW Bridge Ave. will remain closed for 8-10 weeks at east side of St. Johns Bridge
Jan. 20, 2022
Contact Don Hamilton, 503-704-7452
Northwest Bridge Avenue on the east side of the St. Johns Bridge will remain closed until late March or early April 2022 for emergency repairs addressing rockfall problems.
The road has been closed since Jan. 5 by rockfalls and ODOT crews have been evaluating the slope above the road. Recent rains aggravated conditions, making the hillside too unstable to re-open the road to traffic.
Northwest Bridge Avenue on the west side of the St. Johns Bridge will remain open.
Since Jan. 5, ODOT geotechnical engineers have been evaluating repair options and determined that the best solution is a pinned mesh system, which will stabilize the slope and minimize the potential for additional rockfall events on the road. The process involves drilling bolts into the hillside, which will hold the robust steel mesh in place on the hillside.
The pinned mesh system has worked successfully in other areas, most recently along the ramp from Southwest Jefferson Street onto westbound US 26.
In preparation for the work, crews will remove vegetation from the slope and perform rock scaling to take down loose, unstable rock from the hillside.
Visit our website for updates, including photos and progress of the work.
As a detour, traffic should use Northwest Bridge Avenue on the west side of the St. Johns Bridge. Expect delays.
Visit Tripcheck.com for real time traffic updates.
Rockfalls have kept NW Bridge Ave. east of the St. Johns Bridge closed since Jan. 5. This photo was taken Jan. 6.
|