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Replacement of a Long Island Rail Road Bridge in 100 Days |
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On February 27, 2012, Horia Necula P.E, Ulises Arteaga P.E, and John Kettell of Long Island Rail Road (Engineering/Structures) explained how they designed, procured, assisted fabrication, and installed a new improved superstructure in 100 days following an accident that occurred on April 22, 2011.
The LIRR bridge over Hills Station Road in Shinnecock Hills was severely damaged by a heavy boom road vehicle in April. LIRR temporarily shored the damaged structure and re-opened the bridge to rail traffic within 30 hours.
The major challenges for this project included quick restoration of rail traffic; maintaining the safe operations with a temporary support system in place; expeditious design, procurement and fabrication of a new steel superstructure providing improved clearance; and completing the substructure modifications in time to accept the fully assembled, painted and waterproofed through-girder span.
The presenters discussed the technical challenges and how the project team overcame each major obstacle enabling the LIRR to continue service virtually with no impact to operations.
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Structures Group 
