PennDOT announced Monday, April 27, a new change to traffic patterns for the bridge preservation project on Route 422 in Butler and Summit townships is now in effect.

The eastbound shoulder lane along the bridge is restricted “effective immediately,” the department announced. The 12-foot lane restrictions in both directions, as well as the stop sign on the westbound on-ramp, will remain.

The $6.2 million project is estimated to be completed at the end of October. Work is weather dependent. Traffic patterns and restrictions are expected to change throughout the project.