Prefabricated Bridge Elements and Systems
Route 9/Metro North Pedestrian Bridge | |
|---|---|
| Location | Croton-on-the-Hudson |
| State | NY |
| Completion Date | 1998 |
| Contact Person | George A. Christian P.E. Acting Director Structures Design and Construction Division New York State Department of Transportation State Campus Building 5, 6th Floor 1220 Washington Avenue Albany NY 12232 Phone: (518) 457-6827 Fax: (518) 485-7826 Email: Gchristian@gw.dot.state.ny.us |
| Description | Building a pedestrian bridge in the village of Croton-on-the-Hudson involved site restrictions, a requirement for aesthetic design, and the need to limit disruption on a heavily traveled highway and a major commuter railroad. NYSDOT chose two commercial prefabricated composite superstructure spans with concrete parapets to bridge the 4-lane highway, service road, and five sets of railroad tracks. Twelve-inch diameter precast piles support 3-section piers made of precast boxes stacked vertically and post-tensioned to a cast-in-place concrete footing. Ramps are 35-foot-long precast concrete units and 20-foot precast stair sections, supported directly on precast columns with cast-in-place seats. Precast concrete's many available architectural treatments enabled meeting project aesthetic goals. |
| Photo |  |
| Prefabricated Elements | total |
| Other Keywords | Precast prestressed concrete/steel superstructure units; precast box pier units; precast prestressed cylinder piles; precast ramp sections; precast stair sections; precast crash walls;concrete cylinder pile,precast box piers,precast prestressed deck composite units,prefabricated total superstructure,total superstructure prefabrication,totally prefabricated bridges |
| Advantages | Improved constructibility and minimized disruption of traffic by reducing the staging area required and reducing construction time, Minimized traffic disruption. |
| Photo Credits | New York State Department of Transportation |
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