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State Trunk Highway 140 (often called Highway 140, STH 140 or WIS 140) is a state highway in the U.S. state of Wisconsin. It runs in north–south in south central Wisconsin from the Illinois border south of Clinton to Emerald.

State Trunk Highway 140 marker

State Trunk Highway 140
Route information
Maintained by WisDOT
Length11.58 mi[1] (18.64 km)
Major junctions
South end IL 76 in Clinton
  I-43 in Clinton
North end US 14 / WIS 11 in Avalon
Highway system
WIS 139US 141


  1. ^ Bessert, Chris. "Wisconsin Highways: Highways 140-149 (Highway 140)". Wisconsin Highways. Retrieved 2007-03-20.