PITTSBURGH – Drivers in Pittsburgh should prepare for potential delays this week as oversized bridge beam deliveries are scheduled for the I-376 Parkway East Bridge. Deliveries are planned for Wednesday and Thursday between 10 a.m. and 2 p.m., weather permitting.
According to the Pennsylvania Department of Transportation (PennDOT), trucks carrying the large beams will travel on I-79 before heading inbound and outbound on I-376 Parkway East to the Squirrel Hill Tunnel area. During these hours, intermittent traffic stoppages of about 15 minutes are expected near the tunnel entrance to allow trucks to maneuver into the work zone. Officials said arrival times may vary due to travel distance, traffic, and other conditions.
The deliveries are part of the $95 million Commercial Street Bridge replacement project, which began in 2024 and is anticipated to continue through summer 2027. The bridge is being replaced using accelerated construction techniques, including lateral sliding of the new structure onto the existing alignment of I-376.
PennDOT said last season’s work included relocating the Commercial Street Bridge and utilities beneath the bridge, along with portions of phased I-376 work. For 2025, construction crews will continue installing abutments, sign structures, and temporary and permanent foundations, along with steel erection. Additional closures and detours are anticipated throughout the year.
Motorists are urged to use caution in the area, allow extra travel time, and stay alert for unexpected delays. PennDOT encourages drivers to check 511PA for real-time road conditions and updates.
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