The Albert Lea Subdivision or Albert Lea Sub is a railway line operated by Union Pacific Railroad in Minnesota and Iowa. It runs from Hoffman Avenue in Saint Paul, Minnesota south to Mason City, Iowa, and is a segment of the former Chicago, Rock Island and Pacific Railroad "Spine Line" which ran from the Twin Cities to Kansas City, Missouri.[1] [2]
In the north, the line initially runs south-southeast along the east bank of the Mississippi River until reaching the St. Paul Union Pacific Rail Bridge (known as the Hoffman Bridge in Union Pacific timetables),[2] where it crosses the river and begins heading south-southwest. The line is primarily signaled using centralized traffic control (CTC).[3]