Drivers who use the Schantz Road Bridge in Lehigh County will have to find an alternate route for awhile.
PennDOT has begun construction on a project to replace the bridge in Upper Macungie Township.
The project also includes removing an S-curve near Adams Road and replacing it with a straight section of road.
Officials say Schantz Road will be closed between Adams Road and Twin Pond Road.
The project is expected to last until July of 2015.