#9. University of Washington
Johnson Hall

Photo courtesy Skanska Johnson Hall’s brick exterior will be restored as part of its renovation.

The renovation of Johnson Hall is the first in a series of significant renovations at the University of Washington. The project involves demolishing and rebuilding approximately 125,000 gross square feet in the collegiate gothic-style building. The original building was constructed in 1930 and got an addition in 1948.

The 1930 building is five stories with an expansive attic, while the 1948 addition is four stories plus attic and a small basement. The skin of the 1930 building is brick veneer and ornate cast stone on concrete exterior walls. The 1948 addition has similar skin finishes, however it uses a hollow clay tile unit system.

Construction includes: abatement work followed by demolition of all of the existing interiors; seismic upgrades in the form of 10- to 25-inch-thick concrete shear walls; restoration of the exterior brick veneer and cast stone; site work and utility upgrades; restoration of perimeter landscaping and an overhaul of the interior courtyard; build out of new interiors; new mechanical and electrical systems, and new research laboratory systems; and classrooms and faculty offices.

A design and construction schedule was developed that includes three phases: demolition/abatement (started April 2004); seismic upgrades (started July 2004); and renovations (started September 2004).

Substantial completion is scheduled for October 2005, with classes to begin in winter quarter 2006.

PROJECT PARTICIPANTS

Contractor: Skanska USA Building, 900 Poplar Place S., Seattle, WA 98144, (206) 726-8000 Architect: Arai Jackson Ellison Murakami, 2300 Seventh Ave., Seattle, WA 98121, (206) 323-8800 Design team: AHBL (land surveyor) Affiliated Engineers N.W. (electrical) CDi Engineers (mechanical) Clayton Group Services (hazardous materials) Fredericks Landscape Architecture (landscape) KPFF Consulting Engineers (structural and civil) Michael R. Yantis Associates (acoustical) Research Facilities Design (laboratory) Owner: University of Washington

Other Participants
Democon	EHS Electrical Contractors	Expert Drywall
Holaday-Parks	ISEC	Lloyd A. Lynch Roofing
Long Painting Co.	Mid-Mountain Contractors	Pacific Earthworks
Performance Abatement Services	Pioneer Masonry Restoration	Rubenstein’s Contract Flooring
Vertical Transportation Services	Walters & Wolf