Construction crews are slated to work on the Route 30 Wrights Ferry Bridge this week, repairing two areas that were damaged by vehicle crashes.

Crews will begin working 7 p.m. Monday to repair the bridge deck and wall that were damaged during the last two years.

Eastbound traffic on Route 30 will be restricted to a single lane (the left lane) from 7 p.m. Monday to about 7 p.m. Thursday.

Traffic congestion is expected during heavy commuting hours. Motorists are advised to allow additional time in their travel plans or seek alternate routes to avoid delays, according to an advisory from the Pennsylvania Department of Transportation.

The bridge carries 48,000 vehicles a day, according to PennDOT.

Repairs to the bridge are supplementary to an ongoing $9.3 million rehabilitation project to replace expansion dams, structural steel, the concrete deck and will upgrade other parts of the bridge.

The project is expected to preserve the 41-year-old bridge for another 20 to 25 years, according to PennDOT.