Plans for 250 ft. Tall Garden Wall at Oregon Federal Building

Plans are still in the works, but the U.S. General Services Administration is in the process of designing a green “garden wall” for the Edith Green-Wendell Wyatt Federal building in downtown Portland. This concept is not new, as many buildings around the world have eco-friendly features. Garden roofs, rainwater collection systems, alternative energy sources, and vertical greenery are a few of the many examples of “living architecture“. Through increased energy efficiency, the GSA is reducing the operating costs of their buildings and the impact they have on the environment. Efficiencies are realized from both an environmental and financial standpoint. Portland is a city recognized as a leader in green building, and it is commendable that the GSA is following the example of other structures certified by the U.S. Green Building Council.

The green design will have “vegetative fins”, which include the metal framework for the planters. The garden wall itself is similar to vines growing on the side of house. It provides cooling in the warmer months and a layer of insulation in the cooler months. It also helps to filter urban air, soften sound, and sequester carbon. Elevators will generate electricity when they descend, smart lighting systems will adjust to variable daylight, rainwater will be used to flush toilets, and solar roof panels will provide energy. The roof will have a 20 foot overhang to provide for shade.

The project poses several challenges that need to be addressed. What types of vegetation will grow at 200 feet in the air and how can those plants be pruned, watered, and maintained at that height? Architect Don Eggleston said “The pruning might be done in much the same way windows are washed, with workers hoisted and lowered on platforms.” (msnbc.com)

All in all, I strongly favor this project and hope to visit the building when it is completed. I am a huge believer in finding efficiencies and fully support efforts to improve our environment. I hope this project inspires our government to someday expand this plan to include all of its buildings.