page_title: Interstate 155 (Illinois)
section_title: Route description
hierarchical_section_title: Interstate 155 (Illinois) / Route description
caption_attribution_description: English: Interstate 155 in Illinois, traveling north at the Mackinaw River. In the background at left, the bridge on the former Illinois Route 121 from pre-Interstate days. (Hopedale Township, Tazewell County, Illinois, 1 mile (1.5 km) north of Illinois Route 122/Hopedale exit 19)
context_page_description: Interstate 155 is a north–south spur of I-55 that provides an Interstate connection for the Illinois cities of Peoria and Lincoln. The northern terminus is just east of Peoria, at I-74 exit 101 in Morton. The southern terminus, which is northwest of Lincoln, is located on I-55 at exit 127. The highway is 32.13 miles long.
  I-155 was created to replace Illinois Route 121. Prompted by safety concerns at a major intersection near Morton, state transportation officials replaced the entire route with a limited-access freeway. The Interstate was built in several segments from 1970 to 1992, a period that included a ten-year delay due to a lawsuit over right-of-way. I-155 fully opened to traffic on October 29, 1992.
context_section_description: I-155 runs north from I-55 just northwest of Lincoln, intersecting U.S. Route 136 (US 136) east of Emden, five miles (8.0 km) north of US 136, eastbound IL 122 joins I-155 traveling north, directly east of Delavan. The two highways run concurrent for four miles (6.4 km) before IL 122 runs east to Hopedale. Further north, the highway crosses the Mackinaw River beside a steel truss bridge serving old IL 121.
  East of Tremont, I-155 intersects IL 9. Four miles (6.4 km) later is Main Street, the first of three northbound exits to Morton. (There are only two southbound exits, at Queenwood Road and IL 98/Birchwood Street). The highway passes to the west of Morton before intersecting I-74 at a trumpet interchange about eight miles (13 km) southeast of downtown Peoria.
  Surrounded mostly by prime land used for farming soybeans and corn, Interstate 155 is a four-lane freeway through rural central Illinois. In addition to Morton, Peoria, and Lincoln, I-155 also serves a number of small farm towns located between Peoria and Lincoln. The largest city directly served by I-155 is Tremont; however, the highway mainly carries traffic traveling to and from Peoria and Springfield.
caption: Interstate 155 at the Mackinaw River. Note the bridge to the left, which formerly carried Illinois Route 121.
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