Title:

Boston City Hall PLa

The Boston City Hall Plaza is currently under construction to improve the quality and accessibility of the space. This renovation will result in greater loading on the MBTA subway tunnels that run under the plaza. Sponsored by Weston and Sampson, the goal of this project was to design a structure or system to lower the new loads that will be imposed on the existing roof beams and columns of the MBTA Green Line Hanover Tunnel that runs below the Boston City Hall Plaza. It recommended design is a below-grade bridge system including a micropile foundation, abutments, precast beams, and a pre-cast deck.

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