Prefabricated Bridge Elements and Systems
I-95/James River Bridge | |
|---|---|
| Location | Richmond |
| State | VA |
| Completion Date | 2002 |
| Contact Person | Dina N. Kukreja P.E. Virginia Department of Transportation Phone: (804) 786-5172 Email: Dina.Kukreja@VirginiaDOT.org |
| Description | Minimal impact on motorists was a project goal for replacement of the superstructure of the I-95 James River Bridge, which carries approximately 110,000 vehicles per day through the city of Richmond. After considering alternatives, Virginia DOT opted for night-only construction, most of which occurred between 7 PM and 6 AM Sunday through Thursday nights. During nighttime construction, one lane of traffic was kept open in each direction. For most spans, bridge preconstructed composite units (PCU's), which include an 8-¾-inch deck over steel plate girders, were precast at a nearby casting yard and then transported to the work site. Work crews cut out the old bridge span and removed it, prepared the gap for the new PCU, and set the new PCU in place. |
| Photo |  |
| Prefabricated Elements | superstructure |
| Other Keywords | Preconstructed composite units consisting of precast 8-¾-inch deck over steel-plate girders,prefabricated total superstructure,total superstructure prefabrication |
| Advantages | Minimized traffic disruption by facilitating replacement of the bridge superstructure without ever closing the highway to rush hour traffic. |
| Contract Elements | A system of incentives for early completion and disincentives (charges) for failure to restore all traffic lanes by specific hours of the day. |
| Photo Credits | Virginia Department of Transportation |
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