U.S. Federal Route 51 is the main north-south route through the center of Macon County. Through out Macon County, U.S. Rt. 51 is either a four-lane highway or control access highway. This route by-passes Decatur to the west of town. U.S. Rt. 51 passes through the following towns in Macon County. Marona Forsyth
Harristown
Macon
U.S. Rt. 51 is multi-plexed in Macon County. Interstate 72, around Decatur.
U.S. Rt. 51 intersects the following highways in Macon County. Interstate 72, at Forsyth. BUSN. U.S. Rt. 51, at Forsyth.
Branches of U.S. Rt. 51 in Macon County. NB U.S. Rt. 51 north of Maroa. SB U.S. Rt. 51 at Maroa. NB U.S. Rt. 51 ar Maroa. A Macon County mile marker on U.S. Rt. 51. A street sign on U.S. Rt. 51 north of the Decatur Metro. NB U.S. Rt. 51 north of Forsyth. NB U.S. Rt. 51 north of Forsyth. SB U.S. Rt. 51 at the north end of Forsyth. NB U.S. Rt. 51 at Cox Street in Forsyth. A BGS on SB U.S. Rt. 51 at I-72/BUSN. U.S. Rt. 51 in Forsyth. A BGS on WB I-72. A BGS on WB I-72. A BGS on EB I-72/NB U.S. Rt. 51. A BGS on EB I-72/NB U.S. Rt. 51. EB I-72/NB U.S. Rt. 51 at the U.S. Rt. 51/BUSN. U.S. Rt. 51 interchange in Forsyth. A BGS on WB I-72. A BGS on WB I-72. WB I-72/SB U.S. Rt. 51 near Forsyth. BGS on SB IL St Rt 121 at I-72/U.S. Rt. 51. Overhead signs on EB I-72/NB U.S. Rt. 51 at IL St Rt 121. A BGS on EB I-72/NB U.S. Rt. 51. EB I-72/NB U.S. Rt. 51 at IL St Rt 121. A BGS on WB I-72/SB U.S. Rt. 51. WB I-72/SB U.S. Rt. 51 near U.S. Rt. 36. EB I-72/NB U.S. Rt. 51 north of east U.S. Rt. 36. A BGS on WB U.S. Rt. 36. A BGS on EB I-72/U.S. Rt. 36. A set of BGS's on EB I-72/U.S. Rt. 36. A BGS on EB I-72/U.S. Rt. 36. A BGS on EB I-72/U.S. Rt. 36. NB U.S. Rt. 51 on the southwest side of Decatur. A BGS on SB IL St Rt 48 at U.S. Rt. 51. A BGS along BUSN U.S. Rt. 51, near Elwin. SB U.S. Rt. 51 near BUSN. U.S. Rt. 51, south of Decatur. SB U.S. Rt. 51 at the merge of traffic from SB BUSN. U.S. Rt. 51. SB U.S. Rt. 51 south of Decatur. NB U.S. Rt. 51 near Elwin. Overhead sign for NB traffic on U.S. Rt. 51 south of Decatur. SB U.S. Rt. 51 near the Shelby/Macon County Line. This is the first indication of further up-grades to U.S. Rt. 51. Photo taken in 2003. The U.S. Rt. 51 expressway is now complete into Christian County. For more pitures see U.S. Rt. 51 in Shelby County. This is the sign that was posted on SB U.S. Rt. 51 near the Shelby/Macon County Line as work was being done on a by-pass around Moweaqua. The sign was pictured in 2003, and does not stand anymore. SB U.S. Rt. 51 near Macon.
