Altoona Subdivision

Altoona Subdivision
A westbound EMD SD70AH on the Altoona Subdivision
Overview
Status	Active
Owner	Union Pacific Railroad
Locale	Minnesota, Wisconsin
Termini	Saint Paul Altoona
Service
Type	Freight
System	Northern Region, Great Lakes Service Unit
Operator(s)	Union Pacific Railroad
History
Commenced	1868
Completed	1872
Technical
Line length	90.7 mi (146.0 km)
Number of tracks	1–2
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Route map Legend west 0.0 Saint Paul 11.6 Lake Elmo to Oak Park Heights 18.4 Lakeland 18.6 Minnesota Wisconsin St. Croix River 18.9 Hudson 21.9 Northline 23.6 Sono Junction 29.9 Roberts 34.3 Hammond 40.0 Baldwin 44.1 Woodville 45.2 Johnson 47.1 Hersey 50.6 Wilson 55.4 Knapp 64.0 Menomonie 68.7 Rusk 76.5 Elk Mound 82.6 Truax 87.1 to Chippewa Falls 88.0 Eau Claire 90.7 Altoona east to Wyeville Subdivision

The Altoona Subdivision or Altoona Sub is a 90.7-mile (146.0 km) railway line owned and operated by the Union Pacific Railroad in the states of Minnesota and Wisconsin. The line originates in Saint Paul, Minnesota, crosses the St. Croix River on the Hudson Bridge into Hudson, Wisconsin, and eventually terminates in Altoona, Wisconsin where it connects to the Wyeville Subdivision.^[1] This subdivision is formerly a Chicago and North Western Railway (C&NW) mainline,^[2] on which the Twin Cities 400 operated in the mid 1900s.