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.