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Norwich Intermodal Transportation Center

Norwich, Connecticut

Services: Site Development, Underground Utilities, Concrete Construction
Clients Served: Government

Loureiro was selected as the trade contractor for the site, utility and foundation package for the construction of a new 260 car parking garage/10 berth bus transportation facility on Hollyhock Island in downtown Norwich, CT. The development parcel encompassed decaying and unsightly lots once home to industrial facilities adjacent to a recreational marina and a landmark fishing business. Loureiro’s scope of work included the installation of end-bearing steel H-piles to support the foundation, concrete pile caps and foundation walls, partial design and construction of a sheet pile supported entrance ramp, site utilities and site finishes. Loureiro worked closely throughout the project with the neighboring businesses to diminish the impact of construction activities on their day to day activities.

Highlights

  • Installed 200 steel HP 14x89 H-piles. Piles were driven with a flying lead system using a combination of a hydraulic vibratory hammer, an 80,000 ft-lb diesel hammer and a 100 Ton crane. The piles ranged from 60 ft. to 75 ft. in length and were driven to bedrock to support the garage concrete foundation and garage entrance ramp.
  • Installed (6) 60 ft. long H-piles under a highway overpass which allowed for only 25 ft. of clearance. Piles were driven in sections with a special pneumatic hammer and a 50 ton crane, utilized due to its compact nature. Piles were spliced in 20 ft. sections.
  • Partial design and construction of at sheet pile ramp framed by H-pile columns and a steel frame. The sheet piles and the steel frame formed a cofferdam which was backfilled and a concrete deck and parapets were installed to allow cars access to the parking garage.
  • Dewatering of the excavations and treatment of extracted contaminated groundwater prior to discharge to the Yantic River. Dewatering efforts were complicated by the tidal fluctuations of the river.
  • Excavation, handling and off-site transportation and disposal of approximately 18,000 tons of contaminated soil.