Deep Hole Excavating
Battery Wharf
Client: Skanska
Location: 344 Commercial Street, Boston
Schedule: December 2005- Summer 2007
Contract Value: $9 Million
J. Derenzo Company is a key player in the $230 million Battery Wharf mixed-use development
located on the water in Boston’s historic North End. J. Derenzo Company is completing all earth
support, excavation and utility work. The project includes four buildings, which will house a
150-room luxury hotel and 104 residences ranging from 900 to 2,500 square feet, as well as
restaurants, a spa and parking facilities. The project, done for Skanska USA Building Inc, was
completed on a site with little staging area within an active area of the Boston waterfront.
J. Derenzo Company’s work included more than 1,200 linear feet of steel sheeting earth support.
The sheeting was installed above the high tide line adjacent to a historic granite block sea wall.
The internal bracing plan developed by J. Derenzo allowed the efficient excavation of the hole.
The mass excavation consisted of more than 80,000 cubic yards from the 35-foot deep foundation hole.
Of this amount, over 72,000 tons of contaminated soils were removed to lined and unlined landfills
by J. Derenzo Company’s affiliated company, Boston Environmental. The soils management by BET included
treatment of lead-impacted soils and removal of hazardous waste from the site. J. Derenzo Company also
installed all utilities for the new development.
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