Photo courtesy of Anna M. Campbell, Image Engineering Photography

Multnomah County’s  Sellwood Bridge is a work of architectural art and when Sundt Construction – working in conjunction with joint venture partner Slayden Construction and subcontractor Omega Morgan — moved the 87-year-old structure, Constructor Magazine documented the titan of steel’s dramatic migration.

The Portland bridge was moved onto new supports to make a detour across the Willamette River for the 30,000 commuters and pedestrians who will cross each day until a replacement bridge opens in 2015.

Due to the bridge’s age, the move was a complicated undertaking that took the team 14 hours to complete. Parts of the process included moving a 1,100 linear-foot-long truss with the help of hydraulic jacks and tracks and demolishing the old approach to the truss.

For more pictures of the Sellwood Bridge move, check out the rest of the breathtaking photos on Constructor Magazine’s website.