Missouri Route 12 (decommissioned)

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For the current highway, see Route 12 (Missouri).
Route 12

Length:

256 mi (409 km)
Established: 1922
Decommissioned: 1926
Direction: East-West
From: St. Louis
To: Kansas City
Cities on route: St. Louis
Brentwood
Kirkwood
Des Peres
Manchester
Ballwin
Ellisville
Wildwood
Gray Summit
Union
Beaufort
Leslie
Gerald
Mount Sterling
Linn
Loose Creek
Jefferson City
St. Martins
Centertown
California
Tipton
Otterville
Sedalia
Knob Noster
Warrensburg
Lone Jack
Lee's Summit
Unity Village
Raytown
Kansas City

The original Route 12 was one of the original 1922 Missouri highways. Its eastern terminus was at St. Louis and its western terminus was at Kansas City. In 1926, with the creation of the U.S. Highway System, it became part of U.S. Highway 50.