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| Stevenson Expressway | |
|---|---|
| Name | Stevenson Expressway |
| Other name | I-55 (Illinois) |
| Type | Interstate Highway |
| Route | 55 |
| Length mi | 63.4 |
| Established | 1959 |
| Termini | Chicago — St. Louis area |
| Counties | Cook County, Will County |
Stevenson Expressway is the local name for the segment of Interstate 55 running from Chicago to the Champaign–Urbana corridor and connecting to the St. Louis area region. The roadway serves as a major arterial linking downtown Chicago with southern Cook County suburbs, Will County communities, and regional transportation networks including O'Hare International Airport, Midway International Airport, and the Chicago Loop.
The expressway begins near the Loop and proceeds southwest through neighborhoods adjacent to CTA lines and stations, passing near McCormick Place, University of Chicago, and Hyde Park. It intersects with I‑90/I‑94 at major interchanges serving Northerly Island, Willis Tower, and access to Lake Michigan. Southward the route crosses the South Branch Chicago River, skirts industrial corridors linked to Union Pacific Railroad yards, and reaches suburban nodes at Burbank and Bedford Park. Farther along it connects to Interstate 355, Interstate 294, and frontage roads that serve Joliet logistics facilities, Cicero commerce, and Oak Brook retail centers. The corridor interfaces with arterial highways that lead toward Springfield, Bloomington, and ultimately links into interstate routes feeding St. Louis. Adjacent land uses include facilities of Illinois Institute of Technology, Illinois State Police, freight terminals for BNSF Railway, and suburban retail clusters anchored by Woodfield Mall and corporate campuses like those of Walgreens, McDonald's, and Allstate.
The corridor’s origins trace to early 20th‑century auto trails and the U.S. Route 66 alignment, which influenced expansion during the Federal Aid Highway Act of 1956 era. Political advocacy by figures associated with Cook County Board and state legislators, and planning by the Illinois Department of Transportation and Chicago Metropolitan Agency for Planning shaped routing decisions. Construction phases paralleled national efforts epitomized by projects like Interstate Highway System development and urban freeway debates similar to controversies at San Francisco Freeway Revolt and New York City urban renewal. The expressway’s naming honored Adlai Stevenson II and reflected mid‑20th century commemorative practices involving figures such as Dwight D. Eisenhower and John F. Kennedy. Community responses included actions by neighborhood groups reminiscent of movements around Jane Jacobs and municipal leaders comparable to Richard J. Daley.
Engineering draws on techniques seen in projects by firms that worked on Hale Boggs Bridge and designs influenced by standards from American Association of State Highway and Transportation Officials and federal engineering practices developed in the National Environmental Policy Act era. Major structures include girder bridges over the Des Plaines River and interchanges modeled on stack designs used at Judge Harry Pregerson Interchange and capacity improvements echoing solutions from Highway 401. Construction employed contractors similar to those that handled Hoover Dam‑era projects and incorporated materials research from Portland Cement Association standards. Drainage and soil stabilization addressed Chicago area geotechnical issues encountered in projects at Navy Pier and Chicago Riverwalk. Traffic control installations adopted technologies from Federal Highway Administration programs and signaling practices used in Metra station access projects.
The expressway handles commuter flows comparable to corridors feeding Lincoln Tunnel and George Washington Bridge, with peak volumes reflecting metropolitan commuting patterns studied by U.S. Census Bureau and Federal Highway Administration analyses. Safety initiatives reference best practices promoted by National Highway Traffic Safety Administration and federal programs paired with enforcement by Illinois State Police and local departments like Chicago Police Department. Incident management coordinates with agencies such as Illinois Emergency Management Agency and transit providers including CTA and Metra. High crash locations have prompted countermeasures akin to those at I‑95 interchanges and implementation of intelligent transportation systems drawn from projects on I‑35W.
While the expressway segment itself is untolled as part of the interstate network, it connects to tolled facilities managed by authorities such as the Illinois State Toll Highway Authority and interchanges serving Chicago Skyway and outbound turnpikes like those in Indiana Toll Road. Maintenance responsibilities are primarily under Illinois Department of Transportation stewardship with contracting practices resembling procurement for Amtrak station upgrades and municipal infrastructure programs in Chicago Department of Transportation. Funding sources include state appropriations, federal grants from agencies like United States Department of Transportation, and bond instruments similar to financing used by Metra and Chicago Transit Authority capital programs.
The expressway supports freight movements to rail hubs owned by Union Pacific Railroad and BNSF Railway, distribution centers for companies such as Amazon, and manufacturing facilities tied to firms like Caterpillar Inc. Its role parallels corridors that enabled growth in regions around Los Angeles County Metropolitan Transportation Authority projects and Greater New York logistics. The roadway influences real estate patterns near nodes like Oak Brook and Schaumburg, affecting development by corporations including Exelon, AbbVie, and retail concentrations similar to those around King of Prussia Mall. Economic studies by institutions such as University of Chicago and Northwestern University evaluate productivity impacts comparable to analyses for Interstate 80 and Interstate 70 corridors.
Planned improvements reference corridor studies by Illinois Department of Transportation and regional planning by Chicago Metropolitan Agency for Planning, with proposals for interchange reconstruction similar to projects at I‑270 and capacity increases inspired by expansions on I‑94 and I‑55 in Missouri. Concepts include adoption of advanced tolling and managed lanes as implemented by LBJ Freeway projects, deployment of vehicle‑to‑infrastructure technologies promoted by National Science Foundation research, and multimodal integration aligning with initiatives from Federal Transit Administration and Chicago Department of Transportation. Community engagement processes will involve stakeholders like Cook County Board of Commissioners and municipal governments following precedents set in planning for Lake Shore Drive renewal and urban corridor revitalizations seen in The High Line conversion.
Category:Interstate 55 Category:Roads in Chicago