Cedar Crossing Restoration Portland, Oregon

In reconnecting Johnson Creek to its historic floodplain, the stream restoration plan provided flood storage for peak flow attenuation, and improved riverine and wetland habitats. The overarching project involved demolition of structures, management of contaminated soil as well as a number of complex design, permitting and site preparation considerations.

Enhanced Habitats for Endangered Species

Working with the City of Portland Bureau of Environmental Services (BES), the Cedar Crossing Restoration enhanced native riparian vegetation and tree canopy, creating high-flow refugia for listed Endangered Species Act (ESA) species, particularly several ESA-listed salmonids. The restoration design included in-stream channel structures, bank stabilization, large woody debris structures and the removal of nearly 2,000 feet of a century-old WPA rock wall that lined both banks of the stream. Otak led the overall project management, geomorphic assessment, monitoring data interpretation, hydrologic analysis and hydraulic modeling, as well as the comprehensive restoration design.

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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

Stream Restoration
“I enjoy working for an employer that has cultivated a culture which encourages employees to think big and to pursue our dreams.”

Russell Gaston

Director of Water & Natural Resources