Next week (possibly as early as Jan. 21) the contractor is expected to perform another key project milestone when the first perched box caisson is lowered into the river as part of the construction of the river pier.
Perched box caissons are used to construct the portion of the river piers that will support the steel arch spans. Construction can occur outside the "in water" work period because, unlike a coffer dam, the river bottom is not disturbed. The technique reduces environmental impacts and cost, and allows more schedule flexibility.
Download a presentation on perched box caissons (pdf, 471kb) to learn more.
New Traffic Signal: The timing of the new signal at the west end of the bridge and Hwy. 43 was adjusted this week to improve traffic flow through the intersection. The only signal phase that requires westbound bridge traffic to stop is activated by a pedestrian or bicyclist to use the crosswalk across the bridge lanes. The signal is often turned off on weekdays between 9 a.m. and 4 p.m. when flaggers direct traffic. Additional curbs and lane markings will be installed on Hwy. 43 north of the bridge next week.
Eastside Concrete Pour January 10 – 11: About 200 concrete truck deliveries will be made to the east work zone from 2 p.m. on January 10 until 2 p.m. on January 11. A truck will arrive about every eight minutes using a route from Tacoma St. to SE 6th Ave. to Spokane St. to the work zone entrance. Flaggers will direct traffic and on-street parking will be removed on Spokane between Oaks Park Way and SE 6th Ave.
Hwy. 43 weekday lane closures: The outside southbound lane of Hwy. 43 is closed weekdays (except from 4 p.m. to 7 p.m.) between SW Taylors Ferry Road and the project limits south of the bridge while the contractor works on retaining walls on the west side of Hwy 43. Through January a northbound lane is also closed weekdays from 9 a.m. to 4 p.m. north of the bridge and the traffic signal at the west end of the bridge is turned off due to work on the retaining walls.
February bridge closure: The Sellwood Bridge is scheduled to close from 5 a.m. on February 13 until as late as 5 a.m. on February 18. The closure will allow the contractor to work on a wall for the new interchange. Hwy. 43 will remain open during the closure.Read More
Several Sellwood Bridge construction activities will impact traffic today through Saturday, January 11:
Westside -- Two lanes of Highway 43 will be closed north of the Sellwood Bridge from Wednesday through Friday this week from 9 a.m. until as late as 4 p.m. due to construction of retaining walls on the west side of the highway. One lane will remain open in each direction. The traffic signal at the west end of the bridge will be turned off during the lane closures and flaggers will direct traffic. Travelers may want to avoid delays by using alternate routes such as the Ross Island Bridge or SW Taylors Ferry and SW Terwilliger Blvd.
Eastside -- Several hundred concrete truck deliveries will take place over a 24-hour period on the east side of the bridge between noon on Friday and noon on Saturday. Trucks will arrive and depart via SE Tacoma St., SE 6th Ave. and SE Spokane St., where they will enter and exit the work zone. Flaggers will direct traffic at Tacoma and 6th and at Spokane and Oaks Park Way. On street parking will be closed on Spokane St. between 6th Ave. and Oaks Park Way. Access for residents, businesses and visitors will be maintained at all times, but the truck traffic will create additional congestion in the area.
Two lanes of Highway 43 will be closed north of the Sellwood Bridge on Wednesday, January 8 from 9 a.m. until as late as 4 p.m. due to construction of retaining walls on the west side of the highway.
One lane will remain open in each direction. The traffic signal at the west end of the bridge will be turned off during the lane closures and flaggers will direct traffic. The lane closures will add to traffic congestion, so travelers may want to avoid delays by using alternate routes such as the Ross Island Bridge or SW Taylors Ferry and SW Terwilliger Blvd.