The Hannon Tower at the Little Company of Mary Hospital required innovative design and construction solutions that even the most experienced hospital design and construction teams would find challenging.

The $38.7 million hospital tower adjoins an existing building and was constructed while the rest of the hospital was fully operational.

Featuring a combination of precast concrete, aluminum panel systems, structural glazing and curtainwall on the facility’s exterior, the 126,000-sq.-ft. tower houses emergency, surgical and maternity areas.

The most unique characteristic of this five-level tower is its cast-in-place concrete frame, a rare commodity in California. In order to meet the state’s seismic regulations, a typical hospital tower incorporates a structural-steel frame. Concrete, however, was chosen for this building’s frame to provide adequate room above the ceiling in order to accommodate extensive MEP systems. The concrete-frame solution met all seismic regulations and also facilitated matching the floors in the new facility with the floors in the existing adjoining building.

One of the most pressing challenges this project presented was a demanding construction schedule and the need to complete significant renovation work in the occupied adjoining tower.

Quotable:

“I’ve worked with a number of well-known contractors and McCarthy is one of the few firms that could have pulled off this project.”

Glenn Crabtree, director of facilities development,
Little Company of Mary Hospital