Illinois Route 170

Illinois Route 170
Route information
Maintained by IDOT
Length: 25.00 mi[2] (40.23 km)
Existed: 1946[1] – present
Major junctions
From: Illinois Route 23 in rural Livingston County
To: U.S. Route 6/LaSalle CR 25 in Seneca
Location
Counties: Livingston, LaSalle
Highway system

Illinois state highway system
Illinois Tollway system

← IL 169 IL 171 →

Illinois Route 170 is a north–south state road in north-central Illinois. It runs from Illinois Route 23 well north of Pontiac to U.S. Route 6 in Seneca. This is a distance of 25.00 miles (40.23 km).[2]

Route description

Illinois 170 is a rural, two-lane surface road for its entire length. The road crosses Illinois River via a four-span truss bridge.[3] As of May 5, 2006, the Illinois Department of Transportation is looking to replace the 74 year old bridge.[4] The old bridge was imploded on November 18, 2010.

History

SBI Route 160 originally ran from Red Bud to Sparta; this became Illinois Route 154 in 1937. In 1946, it replaced Illinois Route 186 from Seneca south to Illinois Route 17 near Budd. In 1995 Illinois 170 was extended further south to Illinois 23.[1]

References

  1. ^ a b Carlson, Rich (2005-04-15). "Illinois Highways Page: Routes 161 through 180". http://www.n9jig.com/161-180.html. Retrieved 2006-08-14. 
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". http://www.dot.state.il.us/gist2/select.html. Retrieved 2007-11-08. 
  3. ^ Baughn, James et al. (2006-01-09). "Historic Bridges of the U.S. – Seneca Bridge, LaSalle County, Illinois". http://bridges.midwestplaces.com/il/la-salle/seneca/. Retrieved 2006-08-15. 
  4. ^ Illinois Department of Transportation (2006-05-05). "Open House Public Hearing Meeting: For Removal And Replacement Of The Illinois 170 Bridge Over The Illinois River In Seneca". http://www.dot.state.il.us/press/h041905.html. Retrieved 2006-08-15.