Ascension Health desired to expand the existing St. John Macomb-Oakland Hospital East Tower with a horizontal expansion on the 2nd, 3rd, and 4th levels, a vertical expansion that included new 5th, 6th and 7th floors, and a new penthouse. Peter Basso Associates provided mechanical engineering and electrical engineering services for the full-service hospital which houses a Level II Trauma Center and provides 24/7 emergency care.
The expansion includes medical/surgical beds and support spaces. The 2nd floor expansion is fully fitted out with the 3rd and 4th floor expansions shelled for future fit-out. The new 5th, 6th and 7th floors are fully fitted out. The total floor area of new construction is 50,329 square feet; the total floor area of fit-out space is 38,853 square feet. In addition, renovations occurred on the 2nd floor and in the Medical Office Building, where total area of renovation is approximately 14,586 square feet. The total construction cost for the new work and the renovation work is approximately $26.3 million dollars.
HVAC systems include a new custom air handling unit and a new steam-to water heat exchanger designed to serve the new construction floor area. Chilled water, steam and condensate piping were extended from the existing central plant to serve the expansion. Plumbing and fire protection systems were connected to existing utilities to serve the expansion. New medical air and medical vacuum systems have been provided to serve the expansion, along with new medical gas alarm systems. New oxygen piping was connected to existing oxygen piping from the existing oxygen supply.
The new expansion also includes a Direct Digital Temperature Control and Energy Management System. Normal electrical power includes a new 750 kVA double ended substation located in the penthouse, fed from the existing 15kV primary feeders. Emergency electrical power includes extensions of the existing life safety, critical and equipment emergency power systems from the existing powerhouse. Power distribution panels and branch circuit panels were provided as required.
Lighting for the expansion and renovation areas was designed to meet current code and interior design requirements. Telecommunications design included coordination with the Owner’s IT department to design raceways, terminal boxes and branch circuits for extensions of the Owner’s Security, Access Control, Sound, Paging and Patient Monitoring systems. A new fire alarm system and new nurse call systems were provided for the building.
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