Daniel Marr & Son @ Boston Children’s Clinical Building

| Katherine Marr

Ironworker Casey Chasarik reaches out to guide a steel beam being set by a tower crane.

DM&S is installing approximately 4,200 tons of steel and 415,000 sq. ft. of metal decking at BCCB for steel fabricator Cives Steel.

A busy summer means a busy fall ahead at Boston Children’s Hospital…

The Boston Children’s Clinical Building (BCCB) is the latest project to break ground at the Longwood Medical Area campus. Part of Boston Children’s Hospital expansion and renewal effort, BCCB will expand the hospital’s bed capacity as well as provide space for various inpatient units, clinical and logistical support services and a rooftop healing garden.

Daniel Marr & Son Company began installing the structural steel and metal decking in mid-June. When installation is complete in February 2020, approximately 4,200 tons of steel and 415,000 sq. ft. of metal decking will support the building’s 15 stories — 4 below grade and 11 above grade, in addition to a two-story mechanical penthouse. Currently, an average of 60 ironworkers per day are on site. Once steel work is completed to the roof, Daniel Marr will build and install a pedestrian bridge from the top of the BCCB to an existing hospital building next door.

Marr Scaffolding’s Aerial Lift Division is providing suspended scaffolding around the building’s concrete core for the installation of steel connection plates. Four, right-angle work platforms provide an efficient means to complete this process ahead of the steel going up. Additional units were installed on the inside of the core to set the elevator divider beams.

Marr Scaffolding’s Shoring Division has designed and built shoring towers to provide additional support for the installation of cantilevered, long-span trusses over the hospital’s occupied spaces. Marr’s Scaffold Division built systems scaffold towers (8′ x 8′) at the base of the 20′ and 30′ shoring towers to help stabilize and provide safe access during their installation.



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