The outbound Squirrel Hill Tunnel is closed this weekend and next.
The closure began at 10 Friday night and will last through 6 a.m. Monday. Crews will be working both on removing the outbound tunnel ceiling as well as working on the outbound bridge over Commercial Street.
This affects eastbound traffic on I-376, known as the Parkway East.
Ultimately, the vertical clearance on the eastbound tunnel will increase from 13 feet 6 inches to 14 feet 9 inches, an improvement aimed at reducing the tunnel disruptions due to overheight vehicles.
The inbound tunnel remains open although there may be short traffic stoppages related to the work.