From left: Robert Murray, BOND President; Paul Hines, Quincy Commissioner of Public Buildings; and Quincy Mayor Thomas P. Koch

Building, civil, utility and energy construction firm BOND yesterday celebrated the topping-off for the new Southwest Quincy Middle School. The ceremony marked the final steel beam set into place on the new 95,000-square-foot building.

The celebration was attended by city of Quincy officials, the School Building Committee, Massachusetts School Building Authority (MSBA), Ai3 Architects, owner’s project manager PCA360 and the BOND project team.

BOND is providing preconstruction and construction management services for the new school, featuring collaborative learning spaces, a media center, gymnasium, music and art rooms, administrative offices, a café and an auditorium.

“It’s a pleasure working with Mayor Koch, the MSBA and the School Building Committee to deliver this important project for the Southwest Quincy community,” Robert Murray, BOND president, said in a statement. “With light-filled spaces and technology-rich classrooms, this new building ushers in the next generation of learning. This is an important milestone and we’re excited to be part of the project team.”

The new, modernized facility will replace the Sterling Middle School, which was built in 1927. Everett-based BOND is using building information modeling along with 3D phasing and logistics plans that allow students to remain in the existing school while the new facility is being built.

The new building will be completed by early spring of 2019, with the remainder of the existing building being demolished following the occupancy of the new school.