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Boston Convention Center - Ramp and Plaza Waterproofing & Drainage Repairs

Owner:       Mass Convention Center Authority

Location:   Boston, MA

Engineer/Architect:  Simpson, Gumpertz & Heger

CSI performed two phases of waterproofing and drainage improvements around the elevated roadways, ramps, and front entrance (along Summer Street) at the Boston Convention Center. The East Roadway phase was performed in 2008 and the West Roadway and Summer Street phase was performed in 2009.

The main item of work was the removal and rebuilding of defective expansion joints around the perimeter of the Convention Center at the elevated roadway locations.

The scope included demolition of the existing failed expansion joints and adjacent asphalt topping, installation of a new hot-applied waterproofing membrane integrated directly into the new expansion joint system and subsequently new heavily reinforced concrete aprons on both sides of the joints. At the Summer Street entrance, the existing concrete topping slab was demolished and re-poured with colored concrete to match the existing paver surface while providing a new block out for the expansion joint system being installed.

Working closely with MCCA staff and Owner's Representative, Tishman Construction, CSI developed logistical plans that allowed the multi-phased sequence of work to proceed while accommodating necessary roadway openings and closures as needed at the Convention Center. Demolition operations were also scheduled to minimize disruption to nearby hotel patrons.

Other items of work included drainage improvements at select stair towers and ramp locations and installation of new subsurface drains around the elevated roadway.

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