07/28/2026
Not every structural engineering challenge reaches the skyline.
For a tunnel project at Swedish Medical Center's First Hill campus, existing underground utilities crossed directly through the planned excavation area, leaving little room for conventional shoring. Locating soldier piles within this congested corridor required precision planning and drilling by Mortenson and Malcolm Drilling.
KPFF supported Mortenson with the excavation shoring design for the construction of critical campus infrastructure.