Illinois Route 15

Illinois Route 15 (IL 15) is a 149.64-mile-long (240.82 km) eastwest highway in southern Illinois with its western terminus at Illinois Route 3, U.S. Route 40, I-55, and I-64, and its eastern terminus at Wabash River at the Illinois/Indiana Border where it meets State Road 64.[1]

Illinois Route 15 marker

Illinois Route 15

IL 15 highlighted in red
Route information
Maintained by IDOT
Length149.64 mi[1] (240.82 km)
ExistedNovember 5, 1918[2]–present
Major junctions
West end I-55 / I-64 / US 40 / IL 3 in East St. Louis
Major intersections I-255 / US 50 in East St. Louis
US 51 in Ashley
I-57 / I-64 in Mt. Vernon
US 45 in Fairfield
East end SR 64 in Mt. Carmel
Location
CountryUnited States
StateIllinois
CountiesSt. Clair, Washington, Jefferson, Wayne, Edwards, Wabash
Highway system
IL 14 IL 16

History

A 2007 picture of the old Wabash River bridge serving IL 14/IN 64. It had since been replaced by a new beam bridge.

West of Mt. Vernon, IL 15 was part of US 460. Until the 1960s, IL 15 went on the IL 160 corridor from Addieville to Okawville, then west on the present IL 177 corridor to Belleville. The section from Nashville to St. Libory was once IL 110, but this was back in the 1940s before US 460 was signed.[1]

The current route was determined in 1967. US 460 was truncated in 1974.[2]

In 2011, the old Parker truss bridge crossing the Wabash River was replaced by a beam bridge.[3]

Major intersections

CountyLocationmi[4]kmDestinationsNotes
St. ClairEast St. Louis0.00.0

I-55 south / I-64 west / US 40 west / IL 3 south / Tudor Avenue St. Louis, Cahokia

Historic National Road west (Riverpark Drive) Eads Bridge
west end of National Road overlap

Historic National Road east (10th Street)
east end of National Road overlap
Alorton3.45.5
IL 163 south Alorton, Centreville, Millstadt
Northern terminus of IL 163
4.26.8 I-255 / US 50 Memphis, ChicagoI-255 exit 17
AlortonCentreville line5.69.0 IL 157 (Bluff Road) Cahokiainterchange
Belleville7.712.4 IL 13 (North Belt) Belleville, Centrevilleinterchange; no access from IL 15 east to IL 13 west or IL 13 east to IL 15 west
Frank Scott Parkway Westinterchange
12.119.5 IL 158 (Centerville Avenue) Millstadtinterchange
13.221.2 IL 159 (Illinois Street) Red Budinterchange
14.623.5
IL 13 west Belleville
interchange; western end of IL 13 concurrency; westbound exit and eastbound entrance
Freeburg21.033.8
IL 13 east Pinckneyville
Eastern end of IL 13 concurrency
Fayetteville28.045.1
IL 4 north Mascoutah, Lebanon
Western end of IL 4 concurrency
St. Libory32.652.5
IL 4 south Marissa
Eastern end of IL 4 concurrency
WashingtonJohannisburg Township38.762.3
IL 153 south Coulterville
Northern terminus of IL 153
Plum Hill Township45.573.2
IL 160 north Addieville
Southern terminus of IL 160
Nashville51.582.9 IL 127 (Mill Street) Carlyle, Pinckneyville, Washington County State Lake
Ashley Township60.196.7
US 51 south Carbondale
Western end of US 51 concurrency
62.9101.2
US 51 north Centralia
Eastern end of US 51 concurrency
JeffersonMt. Vernon75.7121.8 I-57 / I-64 Effingham, East St. Louis, Cairo, EvansvilleI-57 exit 95
78.3126.0 IL 37 (10th Street) Salem, Benton
WayneWayne City95.8154.2
IL 242 south McLeansboro
Northern terminus of IL 242
Fairfield107172
US 45 north Flora
Western end of US 45 concurrency
110180

US 45 south (1st Street) to I-64 Enfield
Eastern end of US 45 concurrency
EdwardsAlbion126203
IL 130 south Grayville
west end of IL 130 concurrency
127204
IL 130 north Olney
east end of IL 130 concurrency
WabashMt. Carmel148238
IL 1 north Lawrenceville
west end of IL 1 concurrency
149240
IL 1 south (3rd Street) Grayville
east end of IL 1 concurrency
149.64240.82
SR 64 east Princeton
Indiana state line (Mount Carmel Bridge over the Wabash River)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. Illinois Technology Transfer Center (2007). "T2 GIS Data". Archived from the original on 2007-08-10. Retrieved 2007-11-08.
  2. Carlson, Rich. Illinois Highways Page: Routes 1 thru 20. Last updated March 15, 2006. Retrieved April 2, 2006.
  3. "Mount Carmel Bridge". Bridgehunter.com. Retrieved November 18, 2020.
  4. Google Maps,
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