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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info

Columbia Building

Columbia BuildingEnvironmental Services completed construction of the Columbia Building in fall 2013. Wastewater engineering and construction staff moved into the new space in January 2014. The staff provides project management, engineering design services, and construction management for wastewater treatment and collection system projects.

The Columbia Building integrates with the plant campus, creates a more welcoming public entrance, demonstrates sustainable practices, and fulfills the need for more site security.

Columbia Building construction was part of a larger treatment plant improvement project.

Project Features

  • The building was certified in October 2015 as a LEED Gold structure.
  • Site redevelopment included a new plant entrance, pond restoration, parking lot upgrade, and landscaping impacting more than three acres.
  • Meeting space in the building is available for rental to the public.
  • The building’s green roof and other stormwater facilities manage stormwater runoff on-site.
  • The landscaping features plants native to the Columbia Slough watershed.
  • Reconfigured parking areas have stormwater management facilities and electric charging stations.