Oregon Map of Hamilton project

Steel Bridge – Union Pacific Railroad upgrade

Portland, Oregon

Start Date: April 2013
End Date: February 2014

Portland's Steel Bridge celebrated its 101st birthday in 2013 and Hamilton helped to ensure the venerable bridge will continue its second century in style with a revamp of its counter weights and steel plates. Work required significant site coordination including roadway closures and staging. Hamilton worked with the railroad's engineer to place the newly fabricated steel plates onto the existing counterweight system.

Interesting Factoid: The Steel Bridge's unique double-deck vertical lift is the only one of its kind in the country. Its lower deck carries railroad and bicycle/pedestrian traffic while the upper deck carries road traffic and light rail making the bridge one of the most multi-modal in the world.