Whilamut Passage Bridge

Completed in 2013

The freeway bridge crosses the Willamette River by two arches which are formed by two arch ribs that support the double tee deck.

Design: OBEC Consulting Engineers, Eugene, Oregon

Structure length

625 m


Interstate 5, Eugene, Oregon, USA

Span length

118.8 + 126.8 m

Structure type

Arch bridge.

Width of the superstructure

2 x 20.47 m

Scope of work

Jiri Strasky: Lead Bridge Engineer, conceptual design, static and dynamic analysis.


GPS: 44.0453357N, 123.0500345W
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Award of Excellence, Portland Cement Association 2014.

Best of the Best Projects, Engineering News-Record (RNR) 2015.