Illinois Route 19

Illinois Route 19 is an east–west state highway in northern Illinois connecting suburban and urban communities from Elgin to Chicago. The route traverses portions of Kane County and Cook County, linking industrial corridors, residential neighborhoods, and transit nodes near O'Hare International Airport. It intersects interstate and U.S. highways and serves as a local arterial for commuting, freight, and regional access.

Route description

Illinois Route 19 begins in the vicinity of Elgin near the Kishwaukee River floodplain and moves eastward through established suburbs such as Schaumburg, Rolling Meadows, and Northbrook. The highway parallels commuter rail corridors operated by Metra and provides connections to I-90 and I-294, with junctions near O'Hare International Airport and O'Hare area access roads. Along its course the road passes commercial nodes adjacent to shopping centers anchored by regional malls and corporate campuses associated with companies headquartered in Schaumburg and Elgin. The eastern segment enters Chicago neighborhoods where it intersects arterial streets linked to CTA bus routes and rapid transit lines including nearby stations on the Blue Line and Milwaukee District/North Line.

History

The corridor that became the state highway was influenced by early 20th-century development patterns tied to the growth of Chicago and suburbanization after World War II. Initial designation in the 1920s followed preexisting thoroughfares used for interurban travel and freight movement connecting Elgin and outlying townships. Mid-century road improvements coincided with expansions of O'Hare International Airport and construction of the Kennedy Expressway, while late 20th-century suburban commercial growth in Schaumburg and Northbrook prompted arterial widening and intersection upgrades. Recent decades saw coordinated planning with agencies such as the Illinois Department of Transportation and regional bodies including the Chicago Metropolitan Agency for Planning to accommodate changing patterns driven by interstate development and shifting freight logistics tied to rail yards and airport cargo facilities.

Major intersections

The route connects with several principal highways and local arterials. Key junctions include an interchange with I-90 near suburban employment centers, intersections with US 20 corridors, and proximity to the I-294 corridor providing north–south connectivity. Within urbanized Cook County the highway crosses major north–south streets that lead to transit hubs served by CTA and Metra lines. These intersections facilitate multimodal transfers between road, rail, and airport access routes such as connections toward O'Hare International Airport. The roadway also meets business routes and county highways that serve industrial areas tied to freight activity at rail yards affiliated with operators like BNSF Railway and Union Pacific Railroad.

Traffic and usage

Traffic volumes along the corridor reflect a mix of commuter, commercial, and truck movements influenced by proximity to Chicago and O'Hare International Airport. Peak-hour congestion is common near major interchanges and commercial districts in Schaumburg and Rolling Meadows, while arterial segments nearer to Elgin see commuter flows toward downtown Chicago and regional employment centers. The route supports connections to intermodal facilities used by rail carriers including BNSF Railway and Canadian National Railway and interfaces with logistics networks that serve freight customers in industrial parks. Travel demand management initiatives coordinated with the Chicago Metropolitan Agency for Planning and transit providers such as Pace influence modal split, with park-and-ride behavior observed near Metra stations and increased transit ridership during special events in the metropolitan area.

Future plans and improvements

Planned improvements have been identified through regional plans developed by the Illinois Department of Transportation and the Chicago Metropolitan Agency for Planning, focusing on intersection modernization, safety enhancements, and multimodal integration. Projects under discussion include intersection signal optimization adjacent to transit hubs, corridor resurfacing, pedestrian and bicycle facility additions consistent with Complete Streets principles promoted by national organizations and local agencies, and targeted capacity upgrades where freight access to rail yards and O'Hare International Airport logistics facilities creates bottlenecks. Coordination with municipal governments in Schaumburg, Northbrook, Rolling Meadows, and Elgin is ongoing to align land-use planning with roadway investments and to integrate funding sources from state and federal programs such as those associated with Federal Highway Administration guidance.

Category:State highways in Illinois