6 months to 1 year
$5 Million - $10 Million
J Derenzo Co. performed site work on the Millennium Tower development in the Downtown Crossing section of Boston. The team performed excavation, pre-trenching and utilities and managed the installation of foundation and earth retention systems. The crew also managed bulk soils excavation and disposal.
The deep hole excavation took the team down 40' to accommodate three levels of below grade parking. Bracing was installed at 6' and 23'. Earth retention is a mix of soldier piles & lagging and seacant piles. Surrounded by highrise buildings and heavy pedestrian thru-ways, the site also sits atop operating MBTA lines; to keep vibration and excavation impact to a minimum, the team used saw cutting and compressors whenever possible.