Westbound traffic on Route 30 could be slower than usual Thursday.

Westbound Route 30 will be restricted to one lane of traffic on the Wrights Ferry Bridge, which connects York and Lancaster counties by crossing the Susquehanna River, the Pennsylvania Department of Transportation announced.

The lane restriction will be in place from 9 a.m. to 3 p.m. Thursday while construction crews repair potholes, PennDOT said. All traffic will take the express lane over the bridge.

The work is part of a two-year, $9.35 million project to rehabilitate the bridge and extend its life, PennDOT said. The work is being done by Swank Associated Co. Inc. of New Kensington and includes replacing the metal bridge joints, concrete deck repair and repairs to the structural steel. The work is supposed to be completed in November.