Overview
- Crew teams slid the prefabricated Commercial Street Bridge into place earlier this week after controlled demolition of the 75‑year‑old span, using synchronized hydraulic jacks and pre‑staged heavy‑lift equipment.
- PennDOT officials say the Parkway East (I‑376) could reopen as soon as the middle of next week if finish work proceeds and weather allows, while Commercial Street itself will remain closed for several more days.
- Remaining tasks include approach roadway repairs, installation of side and approach barriers, large expansion joints, conduits and ITS/fiber connections, and a polyester polymer concrete overlay that cannot be placed in rain.
- The concentrated 25‑day closure and detours have diverted roughly 100,000 vehicles per day onto local streets, producing longer commutes, navigation‑app misrouting and traffic strain in neighborhoods such as Regent Square and Swisshelm Park.
- PennDOT pursued an accelerated, incentive‑driven strategy with off‑site prefabrication, rehearsals and test slides to avoid years of rolling lane work, and officials describe the rapid slide and schedule gains as a successful proof of that approach.