Watertown Subdivision

Watertown Subdivision
The Watertown Sub local in Oconomowoc switching cars from an industrial spur owned by Brownberry
Overview
Status	Active
Owner	Canadian Pacific Kansas City Limited
Locale	Wisconsin
Termini	Portage Milwaukee
Service
Type	Freight, passenger
Operator(s)	Canadian Pacific Kansas City Limited, Amtrak
History
Commenced	1850
Completed	1864
Technical
Line length	92.7 mi (149.2 km)
Number of tracks	1–2
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Route map v t e Legend west to Tomah Subdivision 178.2 Portage spur, formerly to Stevens Point, Horicon 177.0 to Madison (M&P Subdivision) 176.0 Pacific 169.0 Wyocena 164.3 Rio 159.3 Doylestown 153.6 Fall River 150.0 Columbus 146.2 Astico 140.8 Reeseville to Madison (Wisconsin and Southern Railroad) Union Pacific Railroad Clyman Subdivision 131.2 Watertown 123.6 Ixonia 117.9 Oconomowoc 115.9 Okauchee Lake 113.0 Nashotah 110.1 Hartland 104.2 Pewaukee CN Waukesha Subdivision flyover (proposed) 102.1 Duplainville Canadian National Railway Waukesha Subdivision 99.4 Brookfield 95.1 Elm Grove Union Pacific Railroad 90.6 Wauwatosa to North Milwaukee to Muskego Yard 85.7 Milwaukee Intermodal Station south to C&M Subdivision

The Watertown Subdivision or Watertown Sub is a 92.7-mile (149.2 km) railway line in Wisconsin operated by Canadian Pacific Kansas City (CPKC) through its primary United States subsidiary, the Soo Line Railroad. It meets CPKC's Tomah Subdivision in the west in Portage and runs to Milwaukee in the east where it meets the C&M Subdivision.^[1][2][3] The Watertown Subdivision had previously been operated by the Chicago, Milwaukee, St. Paul and Pacific Railroad (CMStP&P/Milwaukee Road), though the Soo Line Railroad took it over when the Milwaukee Road folded. Canadian Pacific gained ownership via taking over the Soo Line. CP consolidated its operations with the Kansas City Southern Railway on April 14, 2023 to form CPKC.