Illinois Route 129

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Illinois Route 129 marker

Illinois Route 129
Washington Street
Route information
Maintained by IDOT
Length 4.06 mi[2] (6.53 km)
Existed 1960[1] – present
Major junctions
South end IL 113 in Braidwood
North end I-55 in Braidwood
Counties Will
Highway system
IL 128 IL 130

Illinois Route 129 is a north–south state road in northeastern Illinois. It runs from Illinois Route 113 in downtown Braidwood north to Interstate 55. This is a distance of 4.06 miles (6.53 km).[2]

Route description[edit]

IL 129 begins at a four-way intersection with IL 113 in Braidwood. The highway is an undivided two-lane surface road for its entire length. It heads northeast as Washington Street, parallel to the Union Pacific Railroad tracks and IL 53. Northeast of Braidwood, IL 129 curves northward and away from IL 53. It continues north until it terminates at an interchange with I-55. Northbound traffic on IL 129 can only enter northbound I-55, and the only access to IL 129 is from northbound I-55.


Lost Braceville US 66/IL 129 bridge. More photos here.

SBI Route 129 originally ran from Effingham to Windsor. It was replaced by Illinois Route 32 in 1936.

In 1957, the number was reused for a former alignment of U.S. Route 66 that ran from Gardner to Wilmington, when US 66 was rerouted onto a new freeway alignment that passed to the west of Braceville and Braidwood. That new alignment eventually became I-55.

In 1995, a section of the highway south of Braidwood was closed to through traffic when a deteriorated bowstring arch bridge over a railroad line was deemed too expensive to repair. From 1995 until 1996, the Route 129 designation was moved to the other side of the railroad tracks, where it shared alignment with Illinois Route 53. This designation was dropped in 1996.[1]

On October 1, 2011, the deteriorated overpass at the interchange with I-55 was closed and removed, as was the previous U-turn ramp approximately 0.25 miles (0.40 km) north of the interchange so vehicles from IL 129 could access southbound I-55. This temporarily leaves this interchange with only an exit from northbound I-55 to southbound IL 129, and an entrance from northbound IL 129 to northbound I-55.[3] A new full interchange is planned here in the future.[4]

Major intersections[edit]

The entire route is in Braidwood, Will County.

mi km Destinations Notes
0.00 0.00 IL 113 (Main Street)
4.06 6.53 I-55 Access from/to northbound I-55 only
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Carlson, Rich. Illinois Highways Page: Routes 121 thru 140. Last updated April 15, 2005. Retrieved May 13, 2006.
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08. 
  3. ^ "Southbound I-55 Ramp Closure in Wilmington" (PDF). Illinois Department of Transportation. Retrieved 2013-02-11. 
  4. ^ "I-55 Wilmington Study". Illinois Department of Transportation. Retrieved 2013-02-11. 

Route map: Google

KML is from Wikidata