Field Office

Location
Portland, OR
Owner

project^

Architect

Hacker

Contractor

Lease Crutcher Lewis

Sustainability

Targeting LEED Gold

Services/Project Type
Structural Engineering
Buildings

Two new 6-story office buildings joined by one level of underground parking for 355 cars and 96 bicycles are helping to modernize an industrial area of Northwest Portland along the Willamette River. The project is located on a 91,540-sf strip of land sandwiched between NW Front Ave and BNSF railroad tracks. Field Office is envisioned as a new kind of creative urban campus, upending the concept of a typical office park. Here, a lush public courtyard is supplemented by planted balconies at every level and ecoroofs. These ‘high parks’ help blur the boundary of indoors and outdoors.

KPFF provided structural engineering for the steel-framed buildings, post-tension concrete garage lid, and basement parking garage. Typical floors have concrete over metal decking, while the stepped parking garage lid is a post-tensioned slab supported by concrete columns. Buckling restrained braced frames resist seismic loads. Creative detailing was used when anchoring braced frames into the parking garage below. The massing of the 320,000-sf development reflects intersecting grids of Northwest Portland as they meet north of the city’s iconic Fremont Bridge. Multiple cantilevers around the perimeter were used to ‘carve’ the building to accommodate its high parks, further solidifying the blur between the indoors and outdoors.

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