157 Berkeley Street

Patriot Place

Location: Boston, MA
wner: Liberty Mutual
onstruction Manager: Turner Contruction Company
roject Value: $21,766,285.00
ompletion Date: Winter 2012

The 157 Berkeley project involved installation of a Slurry Foundation wall and LBE column supports, as well as a 35ft deep excavation for a high rise office building in downtown Boston. Our slurry wall subcontractor for this Project was East Coast Slurry. Excavation was accomplished using the Up-Down excavation method. Following placement of the perimeter slurry wall and interior LBE’s, an upper garage slab was placed on grade to support the top of the slurry wall. Subsequent soils were then mined – one floor at a time – to the P4 parking level, while the high rise tower was being erected over head. In addition to the Up-Down, other challenges included removal of existing large diameter caissons up to 40ft deep, adjacent to busy City streets, prior to slurry wall installation..

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