Long-Term Traffic Restrictions Occur On Major Pittsburgh Roadway

PITTSBURGH, PA — A long-term crossover on heavily traveled Route 51 began Thursday and will cause traffic headaches for motorists for the next several months.

Southbound traffic are now crossed over into the northbound lanes around-the-clock through mid-June during this first phase of roadway reconstruction work. A single lane of traffic in each direction will be maintained in the northbound lanes. Traffic in both directions will only be able to make left turns at signalized intersections.

This work was originally scheduled to begin March 28 but was postponed due to inclement weather.

This $19.8 million roadway project on Clairton Boulevard includes milling and resurfacing, concrete replacement, bridge preservation work on three structures (two structures over Lewis Run and one structure over Lebanon Church Road), drainage work, guide rail improvements, ADA curb ramp updates, PRT bus stop improvements, signing and pavement marking installation, and other miscellaneous construction activities.

Also included is an adaptive traffic signal project that will provide upgrades to 24 intersections, including full signal replacement at nine intersections, from Peters Creek Road in Jefferson Hills Borough to Stewart Avenue in the city of Pittsburgh. Up to one-mile-long single-lane restrictions will occur in each direction limiting left-turn movements except for at signalized intersections.

Detours for the left-turn movements will be posted.

The project is anticipated to conclude in late 2026.