Illinois Route 158

Illinois Route 158 is an east–west state road in southwestern Illinois. Its western terminus is at Illinois Route 3 in Columbia and its eastern terminus is at U.S. Route 50, in O'Fallon. This is a distance of 25.81 miles (41.54 km).[1]

Illinois Route 158
IL 158 highlighted in red
Route information
Maintained by IDOT
Length25.81 mi[1] (41.54 km)
Existed1926[2]–present
Major junctions
West end IL 3 in Columbia
East end I-64 / US 50 in O'Fallon
Location
CountiesMonroe, St. Clair
Highway system
Illinois State Highway System
← IL 157→ IL 159

Route description

Illinois 158 is an important east–west highway in the southeastern portions of the metropolitan St. Louis, Missouri area. It runs from Columbia through Millstadt, Belleville, and near the Scott Air Force Base. Portions of the route run north–south geographically.

IL 158 has a wrong-way concurrency with IL 161 near Scott Air Force Base, where you are going east on 158 and west on 161 at the same time. IDOT has used "North" and "South" cardinal direction banners for IL 158 for that concurrency in an attempt to remove confusion in that area. For the rest of the route, it is signed "East" and "West".

The eastern terminus is actually the intersection with US 50 just north of I-64. The road extends past the point as "Scott-Troy Road".

History

SBI Route 158 ran from Columbia to Belleville on the current Illinois 158 routing. In 1957, it was extended north to O'Fallon, and west to the Jefferson Barracks Bridge; in 1958, Illinois 158 replaced Illinois Route 157 on the bridge approached. In 1960, the western end was brought back to Columbia.[2]

Future

The Illinois Department of Transportation has included a large portion of Illinois 158 in their Gateway Connector project; a southeastern beltway that would run from Columbia east to Scott Air Force Base, and north to Troy.[3]

Illinois 158 will be a proposed 4-laned expressway all throughout its proposed route, however, some interchanges will have ramps and some may have traffic lights. This project has drawn much criticism from local residents of these areas. At least one organization, the Stop 158 group, has formed to block construction of the road and refocus use of taxpayer's dollars on a new Mississippi River bridge south of St. Louis.[4]

The Gateway Connector remains unfunded for construction through 2010.

Junction list
CountyLocationmi[5]kmDestinationsNotes
MonroeColumbia0.00.0 IL 3 – Columbia, WaterlooInterchange
St. ClairMillstadt5.69.0 IL 163 north (Jefferson Street) – Centreville
Belleville11.718.8 IL 15 – East St. Louis, FreeburgInterchange
11.819.0 IL 13 west (South Belt West) – East St. LouisWest end of IL 13 concurrency
12.620.3 IL 159 (Illinois Street) – Belleville, Smithton
13.020.9 IL 13 east (Freeburg Avenue) – FreeburgEast end of IL 13 concurrency; west end of IL 177 concurrency
​19.230.9 IL 177 east (Mascoutah Avenue) – MascoutahEast end of IL 177 concurrency
​20.232.5 IL 161 east (Scott Drive) – Scott AFBEast end of IL 161 concurrency
​21.334.3 IL 161 west (Carlyle Avenue) – BellevilleWest end of IL 161 concurrency
O'Fallon25.040.2 I-64 / US 50 west – East St. Louis, Mt. VernonInterchange; west end of US 50 concurrency
25.8141.54 US 50 east / Old Highway 50 – LebanonEast end of US 50 concurrency
Scott-Troy RoadContinuation past US 50
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
  2. Carlson, Rich (2005-04-15). "Illinois Highways Page: Routes 141 thru 160". Retrieved 2006-07-02.
  3. Illinois Department of Transportation (2005). "Gateway Connector: Planning for the Future". Retrieved 2006-07-02.
  4. Stop 158 (2006-07-01). "Stop 158 - Illinois Citizens for Smart Growth". Retrieved 2006-07-02.
  5. Google (March 8, 2017). "Overview Map of IL 158" (Map). Google Maps. Google. Retrieved March 8, 2017.
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