Mayo Clinic West Expansion Tower
Mayo Clinic West Expansion Tower | Phoenix, Arizona
As part of the Arizona Forward Project, a five-year major expansion to the Mayo Clinic Phoenix campus, DPR constructed a seven-story tower (concourse plus six floors above grade) that adds approximately 583,800 sq. ft. on the west side of the existing hospital. The project expands clinical programs including the emergency department, laboratory medicine, intensive care and medical-surgical beds, observation beds, apheresis/ambulatory infusion center/dialysis, radiology, and support.
Project
Details
In addition to the new patient tower, approximately 20,000 sq. ft. of tenant improvement was completed to increase capacity at the existing hospital, including check-in and waiting rooms, conference, office and work rooms, storage on the first three floors and connection into the existing tower on the second and third floors. The buildout of the tower involved several technical, high-profile spaces including a first-of-its-kind 7T MRI room.
Even the project's make-ready work was highly technical, including the tunnel and concourse that now sit beneath the tower. Extensive site work was necessary to reconfigure the campus and accommodate parking, driveway, helipad, and entry modifications. Working closely with Mayo Clinic, the design team, and trade partners, DPR's project team found multiple ways to maintain maximum access to critical care, while making the least impact possible to patients and staff.
Predictability and Efficiency with Prefabrication
Kyle Allan (DPR) and Facilities Architect Jason Liu (Mayo Clinic) discuss how the Mayo Clinic West Expansion project used prefabricated exterior panels to achieve design and schedule goals.
The
Challenges
Maintaining Access during Construction
The new tower was constructed on the west side of campus, in the same space as major hospital access routes. Key areas needed to function and serve patients 24-7, in particular the busy emergency department (ED), but major construction work could not be completed without moving the entrances to these spaces.
Tunneling under an Active Hospital
A major portion of the project’s make-ready and site work included constructing a 250-foot-long tunnel under the existing seven-story hospital tower and active lab. To prevent disruption to sensitive operations above, the DPR project team worked closely with the geotechnical engineer, trade partners, and Mayo team members.
Installing State-of-the-art MRIs
DPR was tasked with building out shell space and installing 3T and 7T MRI machines, the latter being the first of its kind used for clinical procedures. Detailed considerations were needed for size, weight, and move-in path, requiring pre-planning with the design team and Mayo years in advance of their installation. Once delivered on site, the 7T MRI had to travel nearly 250 feet through the active ambulance drop-off, main entry vestibule, shared ED/Radiology corridor, and three knock-out panels to finally arrive in the MRI room.
The
Challenges
Maintaining Access during Construction
The new tower was constructed on the west side of campus, in the same space as major hospital access routes. Key areas needed to function and serve patients 24-7, in particular the busy emergency department (ED), but major construction work could not be completed without moving the entrances to these spaces.
Tunneling under an Active Hospital
A major portion of the project’s make-ready and site work included constructing a 250-foot-long tunnel under the existing seven-story hospital tower and active lab. To prevent disruption to sensitive operations above, the DPR project team worked closely with the geotechnical engineer, trade partners, and Mayo team members.
Installing State-of-the-art MRIs
DPR was tasked with building out shell space and installing 3T and 7T MRI machines, the latter being the first of its kind used for clinical procedures. Detailed considerations were needed for size, weight, and move-in path, requiring pre-planning with the design team and Mayo years in advance of their installation. Once delivered on site, the 7T MRI had to travel nearly 250 feet through the active ambulance drop-off, main entry vestibule, shared ED/Radiology corridor, and three knock-out panels to finally arrive in the MRI room.
The
Solutions
Prefabricated Bypass Hallway
By installing over 500 feet of prefabricated enclosed hallways, the team successfully routed walk-in, ambulance, and helipad traffic to ED entrances, with less time and less disruption than traditional methods. This method shortened the overall schedule by five weeks and required 2,400 fewer hours of on-site labor. While hallway sections were built off site (fitted with mechanical, electrical, and HVAC) by strategic partner Digital Building Components, DPR’s self-perform concrete team was busy pouring foundations to support the modular components, which were then craned into place in just four days.
Engineering out the Risk
The team meticulously located and protected existing utilities, and utilized vibration monitors along the underground path to ensure tremors from excavation were controlled and safe. Through collaboration and innovative preplanning, the team completed the tunnel successfully and moved forward on schedule to build the new hospital tower.
Aggressive, Collaborative Scheduling
Brought on early, DPR immediately proposed a faster start for design of the 7T MRI project; this pulled the schedule in 6 months, allowing earlier buy-out and start of construction. Late changes in shielding calculations from the manufacturer caused design changes for the foundations. Having already excavated these, this pushed the team from a September magnet move-in date to late October. However, honoring Mayo's request for a pre-October move-in, DPR worked closely with our self-perform team and trade partners, and performed successful build-out, delivery and installation to meet the target date.
The
Solutions
Prefabricated Bypass Hallway
By installing over 500 feet of prefabricated enclosed hallways, the team successfully routed walk-in, ambulance, and helipad traffic to ED entrances, with less time and less disruption than traditional methods. This method shortened the overall schedule by five weeks and required 2,400 fewer hours of on-site labor. While hallway sections were built off site (fitted with mechanical, electrical, and HVAC) by strategic partner Digital Building Components, DPR’s self-perform concrete team was busy pouring foundations to support the modular components, which were then craned into place in just four days.
Engineering out the Risk
The team meticulously located and protected existing utilities, and utilized vibration monitors along the underground path to ensure tremors from excavation were controlled and safe. Through collaboration and innovative preplanning, the team completed the tunnel successfully and moved forward on schedule to build the new hospital tower.
Aggressive, Collaborative Scheduling
Brought on early, DPR immediately proposed a faster start for design of the 7T MRI project; this pulled the schedule in 6 months, allowing earlier buy-out and start of construction. Late changes in shielding calculations from the manufacturer caused design changes for the foundations. Having already excavated these, this pushed the team from a September magnet move-in date to late October. However, honoring Mayo's request for a pre-October move-in, DPR worked closely with our self-perform team and trade partners, and performed successful build-out, delivery and installation to meet the target date.
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