2007 ACEC Gold Award in Structural Systems
FLETCHER STREET BRIDGE OVER ROUTE 17
The original bridge, built in the 1960s, was a two-span simply supported structure comprised of a composite steel beams and concrete deck. In January 2004, an overheight vehicle struck the bridge causing significant damage. State officials immediately closed the structure since the damage required extensive repairs. This closure caused significant impact to the community, where a nearby school and a prison, as well as emergency responders, were immediately inconvenienced. The State called upon WSP SELLS to design a replacement structure that could be completed in an accelerated time schedule. The final structure would not only address all the non-standard features and give a long service life, but would still be fiscally responsible.
This $2.67 million project had a modest scope of reconstructing a deficient bridge; however, the challenge was to accommodate the extremely compressed design and construction schedule.
HIGHLIGHTS
Designed the construction of a two-span bridge to be completely open to traffic as fast-as-possible, including the seismic retrofit to the foundation
Eliminated the traverse expansion joint between adjacent precast superstructure units and providing live load continuity
Provided a pile cap extension constructed in phases to accommodate all seismic loads in the final condition
Designed the precast-precompressed superstructure that could be installed and can accept traffic nearly immediately
Comprehensive construction schedule, completing project in the quickest time while remaining fiscally responsible
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