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Project Date:1995
Owner:
Massachusetts
Bay Transportation Authority
Project Engineers/Managers:
HNTB
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"Incredibly
complex in design and construction but successfully executed
with curved girders and trapezoidal boxes."
-American
Institute of Steel Construction, Inc. Judges'- comment in
awarding project 1996 Prize Bridge Award.
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Construction
was completed in the midst of a rail station facility
and a network of highway ramps. |
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Project
Highlights
MBTA South Station Ramp Project
Boston, Massachusetts
•Constructed
in coordination with Central Artery/Tunnel
Project including South Bay Interchange and Mass Turnpike
access in the South Bay area.
• Support system consists of cast-in-place concrete
columns
founded on precast concrete piles and slurry caissons
bearing on rock.
• Foundation caps were constructed 45 feet below
grade
inside braced cofferdams.
•Foundations support a composite structural steel
tub girder and concrete deck.
•Ramp structure spans three below-grade tunnel approach
ramps and 11 South Station railroad tracks.
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