Our goal is to keep Michigan's motorists safe, informed, and mobile. That is why MDOT offers many ways to help ease the stress of commuting by providing information that commuters want and need as they make daily travel decisions.
Did you know that millions of people visit the Great Lakes State every year? Whether you are from out of state or right here in Michigan, we want to ensure your travel throughout Michigan is informative, comfortable, and fun.
At MDOT, safety is paramount. It is our goal to improve overall safety for all road users, internal staff, contractors performing work on roads, and emergency responders.
Every year, MDOT produces an updated version of the state transportation map. The department also produces numerous geographic information system maps to assist commuters, tourists, and businesses.
In Michigan, there are three publicly-owned and operated bridges: Mackinac Bridge, Blue Water Bridge, and International Bridge. There are also two privately-owned and operated border crossings: Ambassador Bridge and Detroit-Windsor Tunnel.
A vibrant and sustainable multimodal transportation system is vital to Michigan's future economic viability and competitiveness. From aviation to public transportation, rail, freight, and marine, MDOT is involved in all modes of transportation.
MDOT's Office of Business Development (OBD) manages external civil rights programs, such as the Disadvantaged Business Enterprise (DBE) Program, the On-the-Job Training Program, and the Small Business Program, and ensures compliance with Title VI of the Civil Rights Act of 1964, equal opportunity requirements for contractors, and the Americans with Disabilities Act of 1990.
MDOT is committed to ensuring that projects, programs and services are performed without discrimination, under Title VI.
Contractors and vendors who work on federally assisted projects are required to establish and carry out policies to assure that applicants are employed and that employees are treated during employment without regard to their race, religion, sex, sexual orientation, gender identity, color, national origin, age, or disability.
Resources for minorities, women, and other socially/economically disadvantaged persons.
The Bureau of Bridges and Structures is responsible for statewide policy, procedure development, and execution to ensure all bridges and structures are designed, constructed, maintained, and operated to ensure safety.
MDOT provides funding for competitive grant and loan programs primarily, but not exclusively, for state and local road agencies for the greatest impact on economic development and job creation.
MDOT's Highway Programs focus on the development and management of the department's roadsides, environmental efforts and policies, and federal-aid highway information.
The Bureau of Transportation Planning develops and implements a comprehensive transportation planning process which results in investments that are consistent with the policies of the State Transportation Commission.
Research Administration supports and promotes innovative research that encourages safe, sustainable and cost-effective transportation solutions throughout Michigan.
MDOT provides technologies and partnerships in order to make the transportation system safer and less congested.
MDOT has ongoing government-to-government communication with 12 federally recognized sovereign tribal governments whose lands are situated within Michigan.
The Office of Communications works with the media to inform the public of MDOT's mission, policies and practices in a positive, consistent and credible manner. The office is responsible for media relations, social media, and website development.
Public participation is integral to efficient, effective and responsive transportation decisions. At MDOT, we want to ensure your voice is not only heard, but makes a difference in moving Michigan forward.
Transportation Reality Check takes on transportation myths and misconceptions, and explains why MDOT does things the way they do.
Resources for the development of quality transportation project documents and services.
Resources for specialized engineering and technical support for construction staff.
Resources for prequalification, bid letting, contract awards, and payments.
Resources for consultant advisories, prequalification information, contracts, and proposals.
Resources for grant and economic development opportunities and project coordination.
Resources for local governmental agencies that regularly require access to state right of way.
Resources for MDOT real estate standards, policies and procedures, and training.
Resources for general work zone mobility guidelines for engineering and technical staff.
Resources for rules, guidelines, restrictions, and permits to safely transport goods.
Open data refers to data that has been officially classified as public that can be made freely available for everyone to use without credentials or restrictions. MDOT promotes transparency, innovation and informed decision-making by providing datasets classified as public freely available to everyone.
MDOT's goal is to support the implementation and use of GIS software and hardware through innovative solutions that solve spatial problems and support more informed decisions about Michigan's transportation infrastructure.
The technical training (TT) course schedule lists the various technical training courses offered through the Office of Organizational Development during the construction off-season months for the local agencies and consultants.
The Internship Program offers undergraduate and graduate students interested in civil engineering and construction management careers, valuable experience by working with professional field staff.
TRAC engages high school and middle school students in solving real-world problems, such as designing bridges or analyzing the environmental effects of building a highway.
The MDOT Transportation Career Pathways Program is committed to helping you build a fulfilling and rewarding career in the transportation industry, even if you're not entirely sure where to start.
MDOT's Engineer Development Program (EDP) is a rotational program that provides new engineers experience in multiple work areas while being assigned a senior-level mentor.
The HBCU TDRP is a unique partnership between MDOT and Michigan colleges and universities to offer on-the-job training to undergraduate students pursuing degrees in engineering or transportation-related careers.
The Veteran Internship Program assists honorably discharged veterans of the United States Armed Forces as they transition into the civilian workforce.
Engineering Week videos and lesson plans are all-inclusive resources to show early elementary to high school students the career of civil engineering at MDOT.
At MDOT, we are here to help. If you can't find what you are looking for in our popular topics, frequently asked questions or website search, give us a call at 517-241-2400 or fill out our contact form.
MDOT's seven region offices each handle transportation-related construction, maintenance and programs within the region's geographic boundaries.
Governmental Affairs represents MDOT's interests as new or amendatory legislation is developed or moving through the legislative process.
Commissions and councils provide a public forum for policy development and implementation.
Policies help the department implement its mission of serving and connecting people, communities, and the economy through transportation.
Allows MDOT's regions and engineers to expand their knowledge on how Michigan freeways are operating over time and how they compare to each other.
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Learn more about the US-23 Flex Route Phase 2 Project.
MDOT has received bids for the project during the March 2023 letting. Construction is anticipated to start in the spring 2023. The work will be performed over three construction seasons. The project is scheduled to be fully open to traffic in 2026 depending on weather and other factors.
The project will be funded with a combination of Rebuilding Michigan and Federal Highway Administration funds.
The speed limit is 70 mph for the US-23 Flex Route. The speeds shown above the lanes are advisory speeds or “recommended” speeds based on areas of restricted sight distance when the shoulder is being used as a travel lane. The effectiveness of the advisory speed system is being reviewed and MDOT expects to make some improvements in this area over the next few years. However, it is still unknown whether the 60 mph advisory speed will remain in place whenever the shoulder is open to traffic.
The MDOT Statewide Transportation Operations Center (STOC) monitors traffic continuously throughout the day and opens the Flex Lane when criteria are met. MDOT Safety Service Patrol also monitors the corridor to confirm the Flex Lane is clear and safe to open. The Flex Lane will be open during morning and afternoon peak periods in the peak direction only for southbound from 6-9 a.m. and northbound from 3-7 p.m.
In addition to peak periods, the Flex Lane may be opened if vehicle travel speeds decrease and traffic volumes increase, meeting conditions for a defined duration. Because it takes time to implement safety protocols before opening and closing the Flex Lane, it is not practical to open lanes to address brief intermittent periods of congestion.
There have been several occasions where the southbound Flex Lane has been opened during the afternoon peak period due to congestion. The STOC will continue to monitor the afternoon congestion and will open the southbound direction when it is safe to do so.
Park and Ride lots are not intended to be trailheads for recreational use. Park and Ride lots were sized to meet commuter traffic parking needs.
If Winans Lake Road went directly into the Silver Lake Road roundabout, it would increase congestion at the roundabout and reduce safety by adding conflict points between vehicles, pedestrians, and bicyclists. This would also result in impacts to adjacent properties.
Work on Lee Road is limited and modifications to address pedestrian safety and bicycle access falls outside of the scope of work for this project.
The proposed path included in the project will be 10 feet wide and will accommodate pedestrians and bicycles.
Multi-use trail access is being provided within the limits of this project and is being designed to allow future projects to connect roads and trails outside of this project’s limits.
The west leg of the Silver Lake Road roundabout at Whitmore Lake Road will be a dedicated access point for the Green Oak Township Fire Department and Emergency Response. This precludes any direct connection from Legacy Road to the roundabout.
Sign up for MDOT news and updates or visit www.Michigan.gov/Drive for lane closure updates.
The US-23 Flex Lane is designed to accommodate peak hour, higher traffic volumes, as well as incident management. The flex lane itself is an upgraded shoulder that is used as a part-time lane. Full use of the lane would require a new lane with wider median shoulders throughout the entire corridor, which would cost much more than upgrading the shoulder.
The use of the shoulder as a lane was vetted and approved by the Federal Highway Administration and multiple coordinating agencies. MDOT was able to widen and resurface the existing roadway to build the flex lane. Building a full lane in each direction would have required the full reconstruction of the freeway. This would have had a much higher impact on the corridor at a significantly higher cost.
The traffic pattern on US-23 has higher levels of congestion on southbound lanes in the morning with commuters traveling to Ann Arbor, while northbound US-23 traffic increases in the afternoon. These peak-hour events, as well as congestion-related crashes, drove the decision to build the flex route on US-23. The current operation is opening the southbound flex lane during the morning peak hours and opening the northbound flex lane during afternoon peak hours of traffic. Ultimately, a 24-hour fix simply is not necessary on this corridor due to the directional congestion in this area. The US-23 Flex Route increases capacity within the existing infrastructure for less money.
