In order to effectively carry out its mission, the department’s professional services, construction, and specialized material needs are advertised continually. All of these procurements and related business processes are governed by law. Please utilize the left hand navigation menu or links below to learn more about IDOT business processes related to that particular procurement, including prequalification, advertisements, policies, guidelines, and much more.
IDOT is responsible for the design and planning of transportation improvement projects. As necessary, IDOT works with consulting firms to accomplish this task. If you are interested in providing these services, please visit the Engineering, Architectural & Professional Services webpage.
IDOT needs land in order to fulfill its basic responsibilities to its citizens. If it could not acquire private property, the state would be unable to fulfill these fundamental responsibilities. As necessary, IDOT works with real estate experts to accomplish this task. If you are interested in providing these services, please visit the Land Acquisition Services webpage.
IDOT oversees construction activity for state-owned roads and works with prime contractors to address the state’s varied infrastructure needs. Roadway and Runway improvements are advertised continually by the department. If you are interested in providing construction services, please visit the Construction Services webpage.
The Chief Procurement Office advertises procurements with IDOT that are unique, or involve alternative or innovative project delivery methods. Many of these projects are in conjunction with the Office of Innovative Project Delivery and include public-private partnerships (P3s) or potential P3s. These projects include the Illiana Corridor project and the South Suburban Airport project. Other procurements involve the Division of Intermodal Public Transportation including the Multi-State Locomotive procurement. Please navigate to Other Procurement Opportunities webpage for more information.
The Chief Procurement Officer for Highway Construction, in consultation with the department, is responsible for overseeing all construction related procurement activity at IDOT. Section 15-1 of the Illinois Procurement Code requires the Chief Procurement Officer to provide information to the public concerning IDOT's procurements and procurement-related activities. Information includes, but is not limited to, awards, change orders, land purchases, contractor suspensions, DBE waivers, conflict of interest statements, and emergency procurements. Please click here for more information on procurement-related activities. You can also visit the Chief Procurement Office webpage.
IDOT is only authorized to handle construction related procurements. Specialized materials and services needed for transportation are handled by the state's Department of Central Management Services. Please visit the Illinois Procurement Bulletin to learn more.