Portland-Milwaukie Project milestone – Light rail bridge begins Year 2 of construction


1st bridge over the Willamette River in 40+ years is 41% complete; overall project creates more than 1,500 jobs

Monday, July 2 marks the beginning of Year 2 of construction on the Portland-Milwaukie Light Rail Bridge. During the first year of construction, 64 firms worked on the bridge, which is now 41 percent complete. Overall project construction jobs total 1,525.

Since the Federal Transit Administration signed off on the project and committed to 50 percent funding, construction is under way along the entire 7.3-mile extension.

Bridge Construction – by the numbers

  • 41% complete
  • Pacific NW firms = 58 (Oregon and Washington)
  • Oregon firms = 43
  • Minority/emerging Disadvantaged Business Enterprise (DBE) firms = 26
  • Construction workers = 287
  • Total firms working on bridge = 64

Constructing the bridge foundation

  • 12 drilled foundation shafts – complete July 3 after last concrete pour
  • Deepest foundation shaft – approx. 155’ below the bottom of the West Tower pile cap
  • Concrete used to date – 18,100 tons
  • Concrete delivery truck trips – 900 – all by Ross Island Sand & Gravel
  • Rebar used to date – approx. 1,300 tons
  • Height of tower crane – 296 feet
  • Amount of scour protection – 21,000 cubic yards

Other construction highlights

  • Rail delivered and stored along alignment = 114,094 linear feet, or 2,211 tons
  • Civil construction under way on SW Lincoln Street
  • Utility relocation under way along entire alignment
  • Harbor Structure (from SW Lincoln to South Waterfront) – Tigard firm fabricating 64 girders to arrive on site late July; girders span up to 150 feet and weight up to 46 tons.
  • Inner SE – Powell overpass to be demolished weekend of July 20.
  • SE Tacoma – bridge over Tacoma St on/off ramp from NB McLoughlin under construction now
  • Milwaukie – utility relocation under way; Kellogg Lake in-water window opens July 15—bridge construction begins

Watch live bridge construction, find construction rundown and look aheads for entire alignment http://www.trimet.org/pm/construction/index.htm

About the Portland-Milwaukie Light Rail Transit Project

The 7.3-mile project is the region’s sixth MAX construction project to be built and extends from the terminus of the MAX Green and Yellow lines at Portland State University in Downtown Portland to South Waterfront, SE Portland, Milwaukie and North Clackamas County. About the project:

  • 7.3 miles
  • 10 stations
  • The first of its kind multi-modal bridge over the Willamette River that will carry light rail, buses, bikes, pedestrians and a future Portland Streetcar extension, but no private vehicles.
  • Opens in September 2015
  • Expands the MAX system to 60 miles and 97 stations

Project partners

Clackamas County, Metro, City of Milwaukie, Multnomah County, City of Oregon City, Oregon Department of Transportation, City of Portland, Portland Development Commission and TriMet.

For more information about the project, visit trimet.org/pm.