▁which ▁car ries ▁Inter state ▁ 7 4 . ▁ ▁Future ▁▁ ▁Illinois ' ▁R te . ▁ 2 9 ▁has ▁long ▁been ▁sl ated ▁as ▁one ▁of ▁the ▁roads ▁to ▁be ▁upgrad ed ▁as ▁part ▁of ▁a ▁Pe oria - to - Ch icago ▁Highway . ▁While ▁there ▁are ▁no ▁longer ▁fund ed ▁plans ▁to ▁build ▁the ▁express way , ▁there ▁are ▁plans ▁to ▁attempt ▁to ▁reduce ▁con g estion ▁on ▁Illinois ▁ 2 9 ▁by ▁w iden ing ▁it ▁from ▁a ▁narrow ▁two - lane ▁highway ▁to ▁a ▁four - lane ▁divided ▁highway . ▁ ▁In ▁September ▁ 2 0 0 1 , ▁the ▁Illinois ▁Department ▁of ▁Transport ation ▁( ID OT ) ▁began ▁the ▁Illinois ▁ 2 9 ▁Study ▁to ▁determine ▁feas ible ▁upgrade ▁paths ▁for ▁this ▁cor rid or . ▁ ▁The ▁Illinois ▁ 2 9 ▁Study ▁covers ▁Route ▁ 2 9 ▁from ▁Inter state ▁ 1 8 0 ▁across ▁the ▁Illinois ▁River ▁from ▁Hen ne pin , ▁south ▁to ▁Illinois ▁Route ▁ 6 ▁at ▁M oss ville . ▁ ▁Al ong ▁most ▁of ▁this ▁stretch , ▁the ▁road ▁is ▁a ▁strip ed , ▁two ▁l ane ▁( one ▁north bound , ▁one ▁south bound ) ▁highway . ▁In ▁Ch ill ic othe , ▁the ▁speed ▁limit ▁is ▁reduced ▁to ▁ 3 5   m ph ▁( 5 6   km / h ), ▁though ▁there ▁are ▁now ▁four ▁lan es ▁( two ▁north bound , ▁two ▁south bound ). ▁T ruck ▁traffic ▁is ▁relatively ▁heavy ▁along ▁this ▁stretch