Illinois State Route 129 was commisioned to replace sections of U.S. Rt. 66, when that was decommisoned. IL St Rt 129 use to run from Gardner in Grundy County, to near Wilmington in Will County. Near Gardner IL St Rt 129 went over a big green bridge which was there to let the GMO (now Union Pacific Railroad) tracks and the Mazon River go under it. This bridge was part of the U.S. Rt. 66 days and was deemed to costly ti repair. So IDOT tore the bridge down and pulled IL St Rt 129 back to IL St Rt 113 in Braidwood.
A old & new street sign at Gardner that still labels a portion of road as IL St Rt 129. A mile marker on the old portion of IL St Rt 129 between Braidwood and Braceville.
IL St Rt 129 passes through the following towns in Will County. Braidwood
IL St Rt 129 does not multi-plex with any other highway in Will County. IL St Rt 129 intersects the following highways in Will County. Interstate 55, near Wilmington.
The southern end in Braidwood. Southern end marker in Braidwood. Looking north along IL St Rt 129 at Coal City Road. A Will County mile marker. Junction signage on WB-Stripmine Road west of Wilmington. Directional Sign on Stripmine Road at IL St Rt. 129 west of Wilmington. NB IL St Rt 129 before Stripmine Road near Wilmington. NB IL St Rt 129 near I-55. NB IL St Rt 129 at I-55 near Wilmington. Northern end of IL St Rt 129 at I-55 near Wilmington. BGS on SB I-55 BGS on SB I-55 at Lorenzo Road. Second BGS on SB I-55. The next BGS on SB I-55.
NB BGS's on I-55 have no control cities. BGS on NB I-55. BGS on NB I-55.
