Marker Photo
US 421
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US 421

US 421 is one of the more recent US routes in Indiana. It was extended into the state in 1951. It runs over the greater portion of old Indiana 29 before moving over a couple of times. North of Reynolds, it was Indiana 43 which was decommissioned in favor or US 421. For the large portion of the route, it is a multiplexed in Indiana.
 
US 421: Kentucky State Line - Madison () < 232 miles > Michigan City (US 20)

Google Map of US 421

 


Cities Served: Delphi, Francesville, Frankfort, Greensburg, Indianapolis, Kirklin, La Crosse, Madison, Medaryville, Michigan City, Monon, Monticello, Napoleon, Osgood, Reynolds, Rossville, Shelbyville, Versailles, Wanatah, Westville, Zionsville
Counties Served: Boone, Carroll, Clinton, Decatur, Jefferson, Laporte, Marion, Pulaski, Ripley, Shelby, Starke, White
INDOT County Flow Maps (AADT): Boone, Carroll, Clinton, Decatur, Jefferson, Laporte, Marion, Pulaski, Ripley, Shelby, Starke, White
Highway Name(s): Veterans Memorial Highway (Jefferson Co), Michigan Road (in places)
Multiplexes: SR 2, US 6, SR 10, SR 14, SR 18, US 24, SR 25, SR 28, US 31, US 36, SR 37, SR 38, SR 39, US 40, SR 46, US 50, US 52, SR 56, SR 67, I-74, SR 129, I-465
Ending at US 421: SR 29, SR 114, SR 143, SR 229, SR 250, SR 334, SR 350
NHS: Only the very short part that is multiplexed with SR 25 in Carroll County and the part multiplexed with I-465
Freeway: Multiplex with I-74, Multiplex with I-465
Expressway: Northeast Madison
Related Links: » Historic Bridges of the United States-Madison-Milton Bridge
  » Kentucky Roads - The Ohio River
  » U.S. Highway 421 from Wikipedia
  » US 421 Boone County - Project Information (INDOT)
  » US Ends .com - US 421


Full Route

Cities Served:
Counties Served:
 
 
  Northern Terminus: Michigan City   at US 20
      End Photographs
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Northbound US 421 at US 20 by Marquette Mall (2004)
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This is looking south on Franklin street, north of US 20. US 421 starts at this intersection and heads south.
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A closeup of the end sign at US 20
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Looking south on Franklin St. at US 20 where US 421 begins
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Looking east on US 20 at US 421 in Michigan City
Google Map  

  Southern Terminus: - Madison at
      End Photographs
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Southbound into Kentucky at the Ohio River (2005)
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Northbound approaching the state line (2003)
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Looking south inside Kentucky
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A look at the old Madison-Milton Bridge from the Indiana side (2008)
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Southbound approaching the Madison-Milton Bridge. The blue mile marker on the left shows Indiana mile marker 0 (2008)
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Northbound approaching the Madison-Milton Bridge in Milton, Kentucky (2008)
Google Map  

  Multiplex Photographs:
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SR 38/SR 39/US 421: This shows where three roads are multiplexed in Frankfort (2006)
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I-74/US 421: Looking southeast as I-74 goes through Shelbyville (2003)
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SR 18/SR 39/US 421: Looking east at the tri-plex west of Delphi (2004)
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US 24/US 421: Looking east in Reynolds (2004)
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This section of I-465 multiplexes with US 31, SR 37, US 52, and US 421 (2004)
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SR 28/US 421: Looking north where SR 28 and US 421 multiplex near Frankfort
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SR 2/US 421: Looking north at the north end of town (2005)
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US 6/US 421: Looking north (2005)
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SR 10/US 421: Looking north (2005)
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SR 14/US 421: Looking north between Medaryville and Francesville (2005)
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SR 56/US 421: Looking west in Madison (2005)
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SR 129/US 421: Looking north in Versailles (2005)
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SR 46/US 421: Looking east in Greensburg
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US 50/US 421: Looking east
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US 421/I-465: Looking south approaching I-465
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I-465/US 31/US 36/US 40/US 52/US 421/SR 37/SR 67: 8 highways multiplexed (2005)
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SR 18/SR 25/SR 39/US 421: Looking southwest in central Delphi (2006)
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US 421-SR 18-SR 39: Downtown Delphi w US 421 cutout (2009)

  Other Photographs:
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Looking south approaching the Ohio River
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Sign goof on BGS (2008)

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