Adams Subdivision

The Adams Subdivision or Adams Sub is a 139.2-mile (224.0 km) railway line owned and operated by the Union Pacific Railroad. It meets the Wyeville Subdivision to the west in Wyeville, Wisconsin, and runs to Butler, Wisconsin in the east where it meets the Milwaukee Subdivision.[1] It was constructed in 1911 by the Chicago and North Western Railway. The Twin Cities 400 ran on the Adams Subdivision from its creation in 1935 to its discontinuation in 1963, and was the last routinely operated passenger train to run on the line.[2] In July 2019, an excursion train ran on the Adams Subdivision as part of the "Great Race Across the Midwest" celebratory tour. The train was led by Union Pacific 4014, a 4-8-8-4 Big Boy type steam locomotive.[3]

Adams Subdivision
UP 1478, an EMD GP40M-2, leads a train long hood forward north of Oconomowoc on July 25, 2019.
Overview
Status	Active
Owner	Union Pacific Railroad
Locale	Wisconsin
Termini	Wyeville Butler
Service
Type	Freight
Operator(s)	Union Pacific Railroad
History
Completed	1911
Technical
Line length	139.2 mi (224.0 km)
Number of tracks	1–2
Track gauge	4 ft 8 1⁄2 in (1,435 mm) standard gauge
Route map west to Wyeville Subdivision 173.5 Wyeville to Tunnel City to Camp Douglas 180.7 Cutler 189.1 Necedah Canadian National Railway 196.4 Dellwood 202.9 Adams 210.2 Grand Marsh 215.9 Brooks 221.6 Oxford 231.0 Glen Oak 240.7 Dalton 250.6 Friesland Wisconsin and Southern Railroad 256.8 South Randolph 264.4 South Beaver Dam wye, formerly to Fond du Lac 276.4 Clyman Junction to Clyman Subdivision 282.5 Lebanon 286.8 Rock River 288.7 Ashippun 292.5 Mapleton 297.8 North Lake 304.4 Sussex Canadian National Railway Waukesha Subdivision 308.4 Marcy 312.7 Butler Junction to Milwaukee Subdivision