Route 543 and 603 Detour Alert
Starts Tuesday, March 18, 2025
Due to construction activity on Dundee between Page and Plum in Elgin, Routes 543 and 603 will detour as follows:
Route 543 Northbound & Route 603 Eastbound
• Dundee → Summit → Liberty (IL-25) → Dundee
• Buses will not serve Dundee between Summit and Page or Page between Dundee and Liberty
Route 543 Southbound and Route 603 Westbound
• Dundee → Page → Liberty (IL-25) → Summit → Dundee
• Buses will not serve Dundee between Page and Summit
On the temporary route segments for Route 543, bus stop signs will not be present. Riders can get on or off the bus at any safe intersection along those segments. On the temporary route segments for Route 603, buses will continue to operate express through this area.
Buses will detour until construction is complete and the roads reopen, which is expected to be in late 2025.
Please allow additional travel time during this detour.
