The Mayo Clinic Health System in Mankato is considering a four-story extension over part of Mankato Hospital that would provide rooms for 69 new hospital beds along with staff areas, public spaces and a relocated rooftop helipad.
Architectural drawings show a curved extension on part of the existing structure, which is on the northeast corner of the hospital campus.
The plan is to add the tower over a period of five years and to increase the patient rooms from the existing 171 rooms to 240 patient rooms.
It will be around 46,500 square meters per floor for a total of 140,079 square meters.
Plans show that a temporary helipad would be in a parking lot along East Mulberry Street.
In a statement, Dr. James Hebl, Mayo Clinic Health Systems’ Southwest Minnesota Regional Vice President, said the project is still in the planning stages.
“Although the Mayo Clinic management has not yet approved the expansion of the bed tower, we are asking the City of Mankato to review the development and approve the project plans, as well as to carry out some preparatory work on campus in order to be ready for construction to begin if all necessary permits are obtained.
“These preparatory steps do not guarantee that the project will move forward.”
Mayo needs a departure from the city as the campus now has a building height limit of 75 feet and the proposed addition would be just over 81 feet high.
The hospital is also looking for a deviation to allow for an increase in allowable signage on campus.
In his inquiry to the city, Mayo said the additional building height is required due to the complex structural problem of transferring the new weight loads down to the existing structure.
“To solve the problem, the designers created a 1.2 meter high surveillance room. This space enables the construction of a structural platform that will support the new bed tower and transfer the loads to the existing supports.
“A second reason for the gap is that mechanical, electrical, and plumbing work can put piping and ducts in the right places to serve both existing and new systems,” Mayo said in his query.
The application states that the height of the bed tower of 4.5 m from floor to floor, which is higher than normal, provides space above the ceilings for the accommodation of mechanics, electrics, plumbing and structure and at the same time provides sufficient ceiling heights in the patient rooms would offer.
Based on the overall development, Mayo would have to provide 1,230 off-street parking spaces based on all uses of the site. The applicant already provides 1,733 off-street parking spaces.
The exterior shows a combination of materials. The fourth, fifth and sixth floors of the building include high-performance concrete slabs, metal, glass and composite metal. The seventh floor of the building will consist of insulated metal panels.
The new lighting for the annex will be limited to signage areas and lighting strips that extend around the annex. All new lights and lighting components must conform to the city code.
The latest plan follows a $ 65 million expansion of the hospital in 2018 and 2019 that brought 14 new high-tech operating rooms.
Hebl said at the time that the complex equipment built into the new operating rooms will enable more advanced surgeries for local patients.
“Providing our patients with a Mayo Clinic experience right here on our campus is important to us, and this is an important part of our efforts to transform this campus into a premier regional medical center,” he said. “Just as we offer Mayo Clinic quality care, we want to offer Mayo Clinic quality facilities.”
Around the same time, Mayo added a new gastrointestinal endoscopy center on the hospital’s second floor and a $ 5 million expansion and renovation of the orthopedic and sports medicine clinic on the first floor.
Last fall, a nearly 100-foot segment of the former Madison East Center shopping mall began with a $ 1 million exterior upgrade that was refurbished and renamed Mayo Clinic Health System-Madison East Center.