The $41 million upgrade to the existing hospital included a 36,000 sq ft expansion, a 38,000 sq ft remodel and a new central utility plant. The 3-story expansion ties into the existing hospital floor-by-floor and includes an imaging department (with a new 1.5 Tesla MRI), 16-bed same day surgery area, new hospital main entry and lobby, and a family birthing center, with a C-section surgery room. The remodel affected almost every department of the existing facility with including surgery, central sterile, emergency department, materials management, environmental services, central stores, sleep lab and patient rehabilitation. The 9,000 sq ft central utility plant includes new emergency generators, heating water boilers, chillers and an underground utility corridor to link it to the hospital.
The foundation underpinnings required two vertical shafts underneath the footings of the existing 3-story building. The shafts flanked the portal of the utility tunnel leading to the central utility plant. They were 26 ft. deep, 8 ft. in diameter, and hand dug in Class C soil saturated by surface and spring water. Confined space entry protocols were strictly enforced, in addition to constant atmospheric monitoring and visual contact. This portion of the job was completed without incident. Structural steel tie-ins between the new addition and existing building required the construction of two-hour fire assemblies around steel columns within the building and above the ceilings in the operating imaging department, same-day surgery Department, and family birthing center. Rigorous scheduling and cooperative efforts between hospital staff and Andersen employees were necessary to make this successful. Portable welding fume extractors, negative air machines, and high volume fans were employed.
Owner: Providence Health Care Systems
Architect: Clark kjos Portland
General Contractor: Andersen Construction, Portland
Subcontractors: J & S Masonry, North Bend, Wash., Snyder Roofing, Portland; and Tice Electric, Portland.