Completed: July 1998
Architect: Parsons Brinckerhoff Quade & Douglas, ZGF Architects
Hoffman’s innovative approach to lining the elevator shafts for this underground light-rail station saved six months on the schedule and made the work safer to execute. We took over the work from another contractor that left the just-started project behind schedule and with a record of safety issues. We applied experience with slipform construction – gained through years of slipforming concrete silos – to the 260 foot vertical shafts. The approach recovered the schedule, finishing ahead of deadline and with an excellent safety record. In addition to building the transit station, the second deepest in the world at the time, Hoffman also coordinated the work of four other contractors involving tunneling, track electrification, signals, and communications. The work was carried out in the middle of Washington Park, which provides access to the Oregon Zoo and hosts over a million visitors each year.