Daniel Bagley Elementary School

Seattle, Washington

  • Services Structural Engineering
  • Market(s) Education

Summer 2020

On-time completion


Sq ft new building


Construction cost


Sq ft retrofit of a landmark structure
  • Owner Seattle Public Schools
  • Architect Miller Hayashi
  • Contractor Lydig Construction
  • Collaborators Shiels Obletz Johnsen
  • Team Seattle, WA
Daniel Bagley Elementary School

The landmark Daniel Bagley Elementary School went through renovation and expansion to better accommodate educational programs and growing enrollment.

The retrofit included a complex combination of unreinforced masonry, concrete, and wood structural systems. KPFF performed an ASCE 41 seismic evaluation for the Life Safety performance level and then designed a full seismic retrofit. Upgrades were required for the shear walls, roof diaphragm, masonry veneer, and equipment anchorage. The shear wall locations were carefully selected to maintain the character of the landmarked building, and to minimize foundation upgrades near an existing utility tunnel.

The expansion building includes a long-span steel structure over the gym, and is designed to allow future growth in two directions.

There were 2 phases of construction. Phase 1 included re-roofing and seismic retrofit of the roof. Phase 2 included building reconfiguration, mechanical/electrical/plumbing system upgrades, and the remaining seismic retrofit work.

Daniel Bagley Elementary School

All Projects

Browse our portfolio to learn more about the breadth of our experience.

Daniel Bagley Elementary School

Let's Connect

Discover more about our many teams and what makes them unique.