LEED Certified Platinum
Opened in 1975, the 18-story tower has more than 370,000 sf of office space and occupies a full city block in downtown Portland. In 2009 as part of The American Recovery and Reinvestment Act KPFF completed a seismic evaluation of the structure and provided structural and civil engineering design services to completely modernize the building. To achieve optimal performance and economy, KPFF used advanced performance-based seismic analysis and design. A detailed BIM model, incorporating all existing structural frame elements, was developed for structural analysis and served as the basis for construction documents.
The advanced analysis allowed designers to achieve the required performance at significantly reduced construction cost. The existing precast skin was removed and replaced with a glass curtain wall that permitted floor area to be added to the perimeter of each floor. A sloped canopy structure atop the roof, supports a 23,000-SF P/V array. It is the largest photovoltaic array on a downtown Portland office building and produces up to 6% of the building's energy consumption.
New grading and drainage around the building supports a new plaza over an existing substructure. Stormwater is filtered through landscaping and harvested for irrigation.
AIA COTE Top Ten+ Award, 2016
AIA/WA Civic Design Awards - Citation Award, 2015
2030 Challenge Design Award, Office category, AIA Portland, 2014
Merit Award, AIA Portland, 2014
National Top 10 Award, AIA Committee on the Environment (COTE), 2014
Best Tall Building Award, Americas Region, Council on Tall Buildings and Urban Habitat (CTBUH), 2014
GSA Design Awards, Honor Award, U.S. General Services Administration, 2014
AIA Northwest Region Design Award, Merit Award, 2013
IES IA Awards (Illuminating Engineering Society, Illumination Award) | Portland, Oregon Section Award for Energy and Environment, 2014
Top Projects, 1st Place, Renovation, DJC Oregon, 2014
Better Bricks Commercial Real Estate Awards, Sustainable Project of the Year, 2014
AIA TAP/BIM WInner | COAA Owners' Choice Award: Renovation/Retrofit Award, 2013
AIA TAP/BIM Winner | Category B; Delivery Process Innovation, 2012