Project Highlights:
• 730 lf of permanent sheeting
installed
• 218 Precast Concrete
Segments
• 33,000 sf of Sheeting
• 630 lf of Drilled Shafts
• CIP Post Tension Viaduct
• 77, 000 sf High Performance
Concrete
• Demolition of Bridge
• 6 Safety Share Awards
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In November 2002 the Massachusetts Highway Department awarded J.F. White Contracting Company a $48 million dollar Contract to demolish a portion of the existing I-93 Northbound/Southbound structure and to construct a new onramp from Boston's historic North End to I-93 Northbound.
The project also entailed demolition and proper removal of the existing I-93 NB and SB viaduct structure (including the truss over the Charles River) from Bent 2 to Bent 24. Two temporary bents were installed in the Charles River to support the existing I-93 Truss structure during demolition. Each temporary bent consisted of eight (2 locations x 4 piles/location) steel H-piles driven approximately 100' from barges set up in river. Piles were driven with height restrictions since clearance under the existing structure was approximately 50'. A cofferdam consisting of Steel Sheeting was driven approximately 25' long into the bed of the Charles River from a barge.
Approximately 730 lf of permanent sheeting was installed along the Miller's River as part of a finished walkway along the riverbank. This was installed as part of an "architectural" finish in this area. |