Interstate 355
Generated by GPT-5-miniExpansion Funnel Raw 60 → Dedup 0 → NER 0 → Enqueued 0
| Interstate 355 | |
|---|---|
| Name | Interstate 355 |
| Route no | 355 |
| Length mi | 32.5 |
| Established | 1989 |
| Direction | A=South |
| Direction | B=North |
| Terminus A | Bureau County, Interstate 55 |
| Terminus B | Cook County, Interstate 290 |
| States | Illinois |
Interstate 355 is a north–south auxiliary highway in northeastern Illinois serving the western suburbs of Chicago. It provides a high-capacity arterial between suburban nodes such as New Lenox, Bolingbrook, Downers Grove, Woodridge, Wheaton, Naperville, and Schaumburg, linking major corridors including Interstate 55, Interstate 80, Interstate 88, and Interstate 290. The route functions as a bypass for traffic around central Cook County and supports commuter, freight, and regional travel in the Chicago metropolitan area.
Route description
The highway begins near New Lenox with connections to Interstate 80 and proceeds north through Will County into DuPage County, paralleling portions of Illinois Route 59, U.S. Route 30, and Illinois Route 53. As it advances, it intersects significant corridors that include U.S. Route 34 in Downers Grove, Interstate 88 near Naperville, and Interstate 290 close to Schaumburg and Rolling Meadows. The alignment traverses suburban and semi-rural landscapes, crossing tributaries of the Des Plaines River and skirting developments associated with Promenade Bolingbrook, Stanford Meadows, Meadowridge, and industrial parks near Butterfield Road. Right-of-way design accommodates full cloverleafs, partial interchanges, collector–distributor lanes, and flyover ramps near major nodes such as I-88 and I-290.
History
Planning for a western suburban bypass emerged in postwar Chicago metropolitan area expansion, influenced by studies connected to Chicago Area Transportation Study and regional plans advanced by Illinois Department of Transportation and the Illinois State Toll Highway Authority. Initial segments were constructed in the late 1980s and early 1990s to relieve congestion on radial routes used by commuters to Downtown Chicago and employment centers in Oak Brook and Schaumburg. The corridor’s development intersected with municipal negotiations involving Will County Board, DuPage County Board, and suburban village governments such as Bolingbrook Village Board and Naperville City Council. Subsequent extensions tied into large infrastructure programs that included coordination with Illinois Road Program initiatives and federal aid administered by the Federal Highway Administration.
Tolls and financing
Financing for construction and operations has relied on a combination of toll revenue bonds issued by the Illinois State Toll Highway Authority and capital grants leveraged through state transportation allocations. Tolling was implemented to retire debt instruments and fund maintenance of pavement, bridges, and interchanges; rates have been adjusted in coordination with systemwide toll policy overseen by the Illinois Tollway Board. Revenue projections considered commuter volumes from employment centers like Woodfield Mall and logistics hubs around Will County Center for Economic Development, with financial models incorporating factors such as inflation, bond yields, and projected traffic growth derived from regional travel demand models used by the Chicago Metropolitan Agency for Planning.
Exit list
The exit system links to arterial and limited-access highways serving western Chicago suburbs, with major interchanges at Interstate 80, U.S. Route 30, Interstate 88, and Interstate 290. Exit numbering follows milepost conventions maintained by the Illinois Department of Transportation and the Illinois State Toll Highway Authority; ramp configurations include full interchanges at suburban centers such as Downers Grove and Naperville and partial access points near residential areas like Wheaton and Woodridge. Auxiliary ramps provide connections to county routes administered by entities including the DuPage County Highway Department and Will County Highway Department.
Traffic and usage
Traffic patterns reflect heavy peak-period commuter flows between Southwestern Cook County suburbs and employment concentrations in DuPage County and Chicago’s downtown core. The corridor also accommodates freight movements bound for intermodal facilities and distribution centers associated with BNSF Railway and CSX Transportation operations in the region. Counts and modeling by the Illinois Department of Transportation and Chicago Metropolitan Agency for Planning show daily vehicle miles traveled influenced by e-commerce logistics growth, employment shifts toward suburban office parks in Oak Brook and Schaumburg, and seasonal variations tied to retail activity at centers like Fox Valley Mall and Woodfield Mall.
Construction and future developments
Phased construction historically required coordination with utility providers such as ComEd and Nicor Gas and environmental clearances relating to wetlands overseen by the U.S. Army Corps of Engineers and Illinois Environmental Protection Agency. Future projects under consideration involve interchange reconfigurations, managed lanes studies, and multimodal integration with regional transit operators including Pace (transit) and proposals linking to Metra commuter lines. Long-range proposals evaluated by regional planners such as the Chicago Metropolitan Agency for Planning include capacity upgrades, noise mitigation programs, and technology deployments for incident management coordinated with the Illinois State Police and local traffic control centers.