Kellogg Creek Bridge Milwaukie, Oregon

A 120-foot replacement for the Kellogg Creek Bridge was needed after being compromised during extreme weather events. The clear span design solved flooding and scour issues from the creek beneath while also protecting a unique, pre-existing fish ladder.

A More Resilient Structure and Sustainable Aquatic Habitat

Because of significant structural issues caused by extreme weather events, Kellogg Creek Bridge included a fast-track approach for the procurement of the design-build team and required quick mobilization and efficiency to meet aggressive construction timeframes. Unusual hydraulics consisting of backwater from the Willamette River resulted in high flows in Kellogg Creek, causing significant scour. The design also enhanced the south bank below the bridge by adding woody debris for fish habitat along with rock revetment for bank stabilization. Otak was the lead design consultant, quality manger, and construction manager for Kellogg Creek Bridge, placing an emphasis on climate change resilience and the sustainability of aquatic habitats.

Protecting a Unique Feature for Fish Passage

The Kellogg Creek Bridge replacement project included a unique fish ladder that was protected through construction. Enhancements were also made to the creek by adding woody debris for fish habitat and rock revetment for bank stabilization.

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Structural Engineering
“The best part of my job is seeing needed infrastructure (especially bridges) get designed, permitted, and built.”

Doug Sarkkinen

Director of Bridges & Structures

Water Resources Engineering
“Otak has always provided me with the opportunity to chart my own course and surround myself with amazing, talented, and interesting people.”

Kevin Timmins

Director of Water & Natural Resources

Environmental Science
“Working at Otak allows me to experience interesting, exciting projects while furthering my professional and personal development. ”

Tracy Emmanuel

Manager of Water & Natural Resources, Colorado