Pittsburgh Regional Transit (PRT) will restart construction activities inside the Mt. Lebanon Transit Tunnel. The $5.1 million project to update the emergency ventilation system is intended to reduce both the moisture inside the tunnel and noise the fans create.
Beginning March 6, contractors will start replacing conduit on the inbound side of the tunnel weekdays from 8 p.m. to 4:30 a.m.
Red Line riders traveling both inbound and outbound will board light-rail vehicles on the outbound platforms of Mt. Lebanon Station and Dormont Junction from 8 p.m. until the end of service each weekday. The inbound platform will be open when the contractors are not working.
Contractors will install the new fans this fall, with the full project expected to be completed by early next year.
PRT began work inside the tunnel, which spans Mt. Lebanon and Dormont, in January 2022. The project has been delayed several months due to supply chain issues and the discovery metal conduit inside the tunnel was corroded. The conduit needed to be replaced before work could resume.
