PennDOT will conduct more maintenance in Mifflin County this week. Bridge maintenance and cleaning gets underway today on Route 4009 at Kish Creek, requiring a detour. On Route 1003 at Treaster Run, flaggers will manage traffic. Additionally, shoulder maintenance on Route 322 between Armagh Township and the Route 655 interchange will cause short-term lane closures. Work is scheduled to end this Friday, but that may change due to weather or other factors.