• Beaverton: 503-641-3478
  • Vancouver: 360-213-1690
  • Brookings: 503-641-3478

I-5 Corridor Assessment

I-5: Wilsonville to Capitol Hwy
Corridor Assessment
Washington & Multnomah County, Oregon

GRI evaluated the potential for hazardous environmental conditions associated with a 5-mile section of Interstate 5 extending from Capitol Highway to the Tualatin River (North section) and Wilsonville Road to the Willamette River Bridge (South section). The Phase I ESA disclosed lead-based paint on bridges and herbicide application that could impact the project site. The ESA included a ground-level reconnaissance of the site, review of federal and state database records regarding documented spills, and review of historic aerial photographs of the alignment. The results of our work were provided in a report prepared in accordance with ODOT guidelines and format.

Key Staff