IMEG provided engineering design services for Rush Oak Brook Orthopaedic Center’s new 99,000-square-foot ambulatory center. 

Engineers provided MEP and technology design for the three-story ambulatory center that will focus on orthopedic services and include medical office spaces, a rehabilitation center, athletic training facility, outpatient services, on-site imaging suites with an MRI, and an ambulatory surgery center (ASC) featuring hospital-standard operating rooms and short-stay rooms.  

The chosen MEP design features an on-site generator with capacity to power the entire ASC floor, including cooling, heating, and vertical transportation, and includes infrastructure redundancy. Three 2000 MBH natural gas-fired high-efficiency condensing boilers (one a redundant unit) were installed. A cooling system with direct expansion condensing units at 440 tons was also included in the design to meet an energy reduction prerequisite. 

The building’s sustainability features include LED lighting, enhanced refrigerant management, high-efficiency condensing boilers, EC motors for exhaust fans, and variable speed compressor on DX condensing units. 

It is predicted to perform 20 percent better than the ASHRAE/IESNA (2015) baseline building performance and reduce water use to 30 percent below the required 20 percent reduction. 

The project is certified LEED Gold.