The Construction Agency under the Illinois Toll Highway Authority is dedicated to the design, construction, and maintenance of the state’s tollway infrastructure, with a core mission to ensure the safety, efficiency, and resilience of Illinois’ highway, bridge, and related civil engineering systems....
The Construction Agency under the Illinois Toll Highway Authority is dedicated to the design, construction, and maintenance of the state’s tollway infrastructure, with a core mission to ensure the safety, efficiency, and resilience of Illinois’ highway, bridge, and related civil engineering systems. Strategic priorities center on modernizing aging transportation corridors, enhancing traffic flow through structural upgrades, and integrating durable, long-term solutions for rail-to-highway interchanges and earthwork stabilization. Key programs focus on corridor reconstruction, railroad bridge replacements, and retaining wall installations to support high-volume commuter routes, particularly along I-294 and I-490. The agency prioritizes infrastructure that withstands heavy usage and minimizes future lifecycle costs through robust construction standards.
Procurement patterns reveal a consistent reliance on full-service highway and bridge construction contracts, often issued as competitive solicitations under fixed-price or cost-reimbursement structures. Engineering services are engaged selectively to support design validation and technical oversight, while ancillary work such as electrical and landscaping is procured only when directly tied to major construction phases. Contracts are typically awarded through sealed bidding processes with no set-asides, indicating a preference for experienced, large-scale contractors capable of delivering complex civil works on tight schedules.
The agency’s primary procurement focus is on NAICS 237310 (Highway, Street, and Bridge Construction), reflecting its central role in heavy civil infrastructure. Supporting activities include related earthwork, structural foundations, and railroad interface projects, all aligned with transportation network expansion and modernization. Vendor relationships are built on proven technical capability, compliance with state transportation specifications, and demonstrated experience in multi-phase, high-traffic construction environments.
As a division of the Illinois Toll Highway Authority, this agency operates statewide to manage the planning and execution of tollway infrastructure projects. It utilizes standardized procurement vehicles for public works, including construction solicitations and engineering service agreements, and maintains a centralized contracting office to oversee all phases of project delivery from bid to closeout.
