On Rt. 644 (Bagby Rd) in the County of Caroline from File Rd; Rt. 643E/W (Caroline County) to Jerusalem Rd; Rt. 678E/W (Caroline County), motorists can expect potential delays in this area from 10/05/12 at 12:00 PM until 08/30/13 at 9:00 AM due to bridge work. The north through lanes are closed. The south through lanes are closed. Use Route 643, File Road, to Route 654, Pendleton Road, to Route 721, Sparta Road, back to Route 678 and Route 643 as an alternate route.