One challenge on the project is the replacing of the bearings and pin & hanger splices. These replacements must take place in a very detailed sequence in order to maintain the structures continuity during construction while it functions as an active bridge for the traveling public. Another challenge is due to the work taking place over approximately 25 railroad tracks that are in operation 24 hours a day.
- Deck demolition
- Deck construction (SIP forms, rebar, shear studs, concrete)
- Concrete pedestal replacement
- Bearing replacement
- Deck joint replacement
- Asphalt paving
- Protective Shielding
- Traffic control
- Epoxy bridge deck overlay
- Bridge jacking (for bearing and pin & hanger replacement)
- Concrete parapet and median barrier installation
- Concrete flatwork
Pennsylvania Department of Transportation
- Full reconstruction of the half mile long bridge deck, approximately 190,000 SF.
- Replacing every bearing and bearing pedestal on the bridge, 194 in total. Each girder will need to be jacked in order to complete the bearing and pedestal replacement.
- Blasting and painting the entire bridge, approximately 325,000 SF will be painted.
- Replacement of 90 “Pin & Hanger” splice connections throughout the bridge, which require the girders to be jacked for the replacement work.
- A 210,000 SF protective shield has been installed under the entire bridge to protect City Street, the public, SEPTA/CSX Property, along with the construction and inspection staff.
- Installation of a new ITS system, 30 new sign structures and new highway lighting.
- Repair deteriorated concrete on piers and abutments
- Install all new bridge drainage – inlets, scuppers, pipe, etc.
- 300,000 lbs of miscellaneous steel repairs
- Repaving of the approach roads on each side of the bridge