Commercial Street Bridge Replacement Project
Plan Ahead: Commercial Street Bridge Replacement
PennDOT will replace the aging Commercial Street Bridge on I-376 Parkway East to improve
safety and mobility for Pittsburgh commuters. To complete this work efficiently,
Accelerated Bridge Construction (ABC) techniques will be used, requiring a full closure of I
376 Parkway East for approximately 25 consecutive days. Expect heavy delays and significant congestion.


Closure Details:
- Where: I-376 between Squirrel Hill Tunnel and Edgewood/Swissvale (Exit 77)
- When: July 10 – August 3, 2026* (*dates subject to change)
Stay Informed:
- Dial 511 or download the 511PA mobile app
- For real-time traffic updates: 511PA.com
- For project updates or sign up for Parkway East alerts: pa.gov/CommercialStBridge