PennDOT maintenance crews will perform bridge flushing and crack sealing this week on Interstate 80 in Montour County. Work will be in both eastbound and westbound directions today through Thursday. This will be a mobile operation with alternating lane closures during daylight hours. Bridge flushing is done to remove dirt and debris to allow proper drainage and drying of the bridge deck. The dirt and debris holds moisture and chlorides that can cause deterioration.