Duplainville, Wisconsin

Duplainville is a neighborhood located within the city of Pewaukee, Wisconsin.[1] It is around three miles north of Waukesha, and around 15 miles west of Milwaukee.[2] The area is mainly industrial, but is most known among railfans because of the diamond junction between the Canadian Pacific Railway and the Canadian National Railway.

Duplainville, Wisconsin
Neighborhood
A Canadian Pacific locomotive leads a train eastbound through Duplainville on May 2, 2020.
Nickname(s): 
Dupy
Duplainville, Wisconsin
Coordinates: 43°4′24.8″N 88°11′48.5″W
Country United States
State Wisconsin
CountyWaukesha
CityPewaukee
Elevation
261 m (856 ft)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP Code
53186
Area code(s)262

History

In 1855, the Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road) built a railroad line from Brookfield to Watertown, which eventually went to Portage. In 1885, the Wisconsin Central Railroad built a railroad line from Rugby Junction to Chicago. This eventually led to their tracks crossing in Duplainville. In 1890, a tower was built in the northwest quadrant of the diamond. Because of heavy winter snow, help was hired to keep the tracks and switches clear. Although there were signals and gates at the Duplainville Rd crossing, there were numerous accidents and some fatalities. The tower burned down on January 1, 1929. A new brick building was then built, which was torn down in 1987 after an interchange track was installed connecting the two lines.

The line built by Milwaukee Road eventually fell under ownership of Canadian Pacific. The line built by Wisconsin Central went through the ownership of various railroads before being handed to Canadian National in 2001.[3]

Current railroad operations

The diamond junction in the center of Duplainville attracts many rail enthusiasts and railroad photographers due to around 20–25 trains that run though each line per day.[2] The east–west mainline belongs to the Canadian Pacific Railway's double-tracked Watertown subdivision, which operates under the Soo Line Railroad subsidiary. Duplainville is at milepost 102.2. The north–south mainline belongs to the Canadian National Railway's single-tracked Waukesha Subdivision, which operates under the Wisconsin Central Ltd. subsidiary. Duplainville is at milepost 102.6.[4] The Wisconsin and Southern Railroad also has trackage rights over this line. An interchange exists in the northeastern quadrant of the diamond, however the switch on the CP side was removed on or around August 1, 2019 due to inactivity.

References
  1. "Duplainville, Wisconsin". Geographic Names Information System. United States Geological Survey.
  2. Todd, Denver (November 2014). "Duplainville". The Gregarious Railfan.
  3. Mueller, Andrew (12 November 2019). "Duplainville Homepage". dupyrail.com.
  4. Reilly, Michael R. (3 March 2005). "The Community of Duplainville". Sussex-Lisbon Area Historical Society, Inc.
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