Transportation, Department of



Transportation, Department of, Department ofOur mission is to provide safe, cost-effective transportation for Illinois’ residents and visitors in ways that enhance quality of life, promote economic prosperity and demonstrate respect for the environment.217-782-7820




Find Public Transportation Public TransportationIDOT provides technical assistance and financial resources to public transportation providers and rail operators in an effort to provide mobility options that support an interconnected transportation network allowing efficient movement of people and goods throughout the state.
Find State Road Project Information State Road Project InformationThis section of IDOT's website showcases projects that the department seeks to keep the public updated on. Utilizing the map and lists provided on this site, you will find significant information on featured projects such as overview, benefits, scope, public involvement and timely news, status and updates on current construction projects.
Engineering/Architectural Procurements ProcurementsPrior to any road or bridge being constructed, the department identifies the need for specialized work. In order to work for the department in this capacity, firms must first seek prequalification in specialized categories. Once prequalified a firm is eligible to submit a statement of interest on advertised projects.
Land Acquisition Procurements -acquisition-procurementsLand Acquisition ProcurementsExtensive land acquisition activity is often required to complete IDOT's Multi-Year Multi-Modal Transportation Improvement Program. To accomplish the program without appreciably increasing the number of IDOT personnel or performing services for which the department does not have specialized expertise, the department utilizes outside vendors.
Special Sign Permits Sign PermitsProvides information on special sign programs that provide motorists with business identification and directional information for eligible motorist services, attractions, and tourist-oriented businesses.
Utility Permits PermitsProvides the process and resources for applying for a permit for Utility Work in right-of-way (new installations, maintenance of existing utilities and utility relocations; mainly for municipalities and utility companies.)
Road Construction Contract Status System Construction Contract Status SystemPrequalification procedures for contractors helping firms become eligible to submit a bid on state and local advertised projects.
Cement Material Approval Material ApprovalFocus areas include testing, acceptance and approval of portland and blended cement, other special cements, ground granulated blast furnace slag (GGBF), microsilica (silica fume), high reactivity metakaolin, fly ash, and other miscellaneous cement products. Other focus areas include research studies regarding cement and finely divided mineral applications, and methods for improving cement and finely divided mineral quality throughout the state.
Airport & Heliport Certification & Heliport CertificationIDOT is empowered and directed to encourage, foster and assist in the development of aeronautics in this state and to encourage the establishment of airports and other air navigation facilities. The Division of Aeronautics classifies and approves airports and restricted landing areas and any alterations or extensions thereof.
Gateway Traveler Information System Interactive Map Traveler Information System Interactive MapWeather, construction, road closure maps
Illinois Bridge Information Search Bridge Information SearchOffers offer bridge inspection and inventory information to the public.
Aircraft Registration RegistrationState law requires aircraft owners who reside in Illinois and fly their aircraft in the state to register their aircraft with IDOT.
Illinois Roads Interactive Map Roads Interactive MapWeb-based interactive mapping site that provides the ability to search and display several sources of transportation data. You can find information on winter road conditions, annual average daily traffic, road construction, trucking routes, and planned road projects.
Oversize/Overweight Permits PermitsIDOT may, at its discretion, upon application and good cause being shown therefore, issue special permits authorizing applicants to operate or move a vehicle or combination of vehicles of a size or weight of vehicle or load exceeding the maximum specified in this Act or otherwise not in conformity with this Act upon any highway under the jurisdiction of the state of Illinois.
Concrete Material Approval Material ApprovalFocus areas are testing, acceptance and approval of products such as admixtures, curing compounds, pre-packaged concrete products, freeze-thaw durable aggregates, and other miscellaneous products related to concrete. Provides information regarding the process and how to get materials approved.
Rest Area Agreements Area AgreementsProvides forms for vendors wishing to distribute newspapers or free travel publications to the traveling public at Illinois highway rest areas.
Illinois Rest Areas Rest AreasRest area related information such as services available, location information, location and rest area name.
Highway Authority Agreements Authority AgreementsAn agreement with a highway authority may be used where a property owner has contaminated public right-of-way or where the public right-of-way may become impacted in the future.
Highway Permits PermitsIDOT requires a permit when working within the right-of-way of an interstate, U.S. state route, Illinois state route or state-maintained roadway. A permit must be obtained prior to the start of any work and a copy of the approved permit must be at the worksite at all times.
Outdoor Advertising Permits Advertising PermitsThis section outlines the process by which to legally Advertise Adjacent to Primary and Interstate Highways.