State owned roads from the Michigan Geographic Framework (MGF) base map.More Metadata

All roads from the Michigan Geographic Framework (MGF) base map.More Metadata

The mapping and inventory process is an ongoing effort, with reviews being completed on the ground by DNR staff as well as an in-depth review of public comments.

Each year:

Comments on current maps are accepted until Aug. 31 Comments on proposed changes to maps are accepted during open comment periods. Approved changes are incorporated into the maps and go into effect April 1

Type of Road Proposals

Open to ORVs

Roads recommended to be opened to ORV use. Proposals in this category may include roads added because of new construction or because an existing road was missed in the initial inventory. Other proposals in this category include roads that were previously closed to ORV use, but due to a change in circumstances or public input, are recommended to be opened to ORV use.

Closed to ORVs

Roads recommended to be closed to ORV use. Proposals in this category may include newly constructed roads, roads missed in the initial inventory process or roads that were previously open and are now recommended for closure. A recommendation to close roads to ORVs could be for natural resource protection or because of user conflicts.

Closed to All Vehicles

Roads recommended to be closed to all conventional vehicles and ORVs. Proposals in this category may include roads that were previously either open or closed to ORV use and were open to use by conventional vehicles. Closure recommendations could be made due to natural resource damage, for example.

Data Cleanup

Roads recommended to be deleted and removed from the statewide forest road inventory. Proposals in this category include roads that may appear on published DNR forest road maps that no longer exist on the ground. Other proposals in this category include roads that are duplicates of an already existing road that need to be removed. Data cleanup is part of an ongoing effort to ensure accurate forest road maps.

If you need assistance with interpreting forest road maps, email DNR-GIS@Michigan.gov.

If you have questions or comments regarding state-managed forest roads, email DNR-RoadInventoryProject@Michigan.gov.

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Road (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The Approved 2025-2029 (PDF) Five-Year Transportation Program (5YTP) is available for review. The public comment period is open until Sept. 3th, 2024. Projects listed on the map are for reference, and a full list by region is available in the PDF above. To leave a non-project-specific comment, open the general comment form.The 5YTP supports efforts to further bolster Michigan's position as a major player in the global economy. The document includes information about MDOT's funding picture, performance measures, system condition, and specific transportation projects planned for the next five years in each of MDOT’s seven regions.Get involved: The earlier you can get involved and provide comment, the more impact your input can have. The best way to influence a project in your area is to participate in early planning public meetings. To learn more about major projects and transportation studies, visit the MDOT Projects and Programs website. Want to report a problem with a road, highway, or bridge? If so, Contact MDOT with the road name, closest intersection, and description of the issue. MDOT has jurisdiction over state roads (I, M and US routes). All other roads are under local jurisdiction, typically the city or county road agency in that area.Not seeing a project? There are numerous reasons why projects may not appear on the 5YTP dataset, including the funding used, the type of project, and more. For more details, visit the Help/FAQs tab. More Information: Five-Year Transportation Program page

The Approved 2025-2029 (PDF) Five-Year Transportation Program (5YTP) is available for review. The public comment period is open until Sept. 3th, 2024. Projects listed on the map are for reference, and a full list by region is available in the PDF above. To leave a non-project-specific comment, open the general comment form.The 5YTP supports efforts to further bolster Michigan's position as a major player in the global economy. The document includes information about MDOT's funding picture, performance measures, system condition, and specific transportation projects planned for the next five years in each of MDOT’s seven regions.Get involved: The earlier you can get involved and provide comment, the more impact your input can have. The best way to influence a project in your area is to participate in early planning public meetings. To learn more about major projects and transportation studies, visit the MDOT Projects and Programs website. Want to report a problem with a road, highway, or bridge? If so, Contact MDOT with the road name, closest intersection, and description of the issue. MDOT has jurisdiction over state roads (I, M and US routes). All other roads are under local jurisdiction, typically the city or county road agency in that area.Not seeing a project? There are numerous reasons why projects may not appear on the 5YTP dataset, including the funding used, the type of project, and more. For more details, visit the Help/FAQs tab. More Information: Five-Year Transportation Program page

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Road (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Reference (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The Mile Marker Inventory contains mile marker location information along Michigan's highways. Descriptive information for the mile markers include: latitude and longitude, route name, region, TSC, county, control section number, physical reference (PR) number, PR mile point, and mile number. The information was collected in 2011 using Framework V11. The data has not been updated and more current data may be available. Please see the MDOT Metadata Form for additional information. Update Cycle: The Mile Marker inventory was initially collected and completed in 2011 as part of the Lane Mile Inventory (LMI). There is currently no update plan in place to re-collect or update this inventory.Data Quality: Data was collected to +/- 25ft accuracy using a laptop equipped with ArcGIS Desktop and a tethered USB puck GPS unit.Coverage: This inventory is complete in its coverage of all State of Michigan trunkline roadways as of 2011.Symbology: The symbology for the Mile Markers is a simple point.Contact: Alonso Uzcategui, uzcateguia@michigan.gov

Active railroad tracks from the Michigan Geographic Framework (MGF) base map. More Metadata

The Annual Average Daily Traffic (AADT) is the estimated mean daily traffic volume and the Commercial Annual Average Daily Traffic (CAADT) is the estimated mean daily traffic volume for commercial vehicles. For continuous sites, estimates are calculated by summing the Annual Average Days of the Week and dividing by seven. For short-count sites, estimates are made by factoring a short count using seasonal and day-of-week adjustment factors.Data Coverage: The dataset covers the entire Federal Aid System in the State of Michigan.Update Cycle: AADT & CAADT volumes are created and released every year.Transportation Data Management System (TDMS) AADT Calculation HelpTraffic Monitoring Program

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Reference (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Road (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The v25 download is available for use and valid as of 12/31/2024. Due to issues with other annual processes, Roadsoft and other MDOT systems are not scheduled for v25. Please be aware if you update your data to use this v25 centerline info, it may not align with Roadsoft and other MDOT systems at this time.The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Reference (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

Data Dictionary for AADT CAADT GIS data layer:CountStation = Count Station. Data is collected and assigned to point locations, which are then used to estimate AADT values for corresponding road segments.CountyNumber = State county identification numberRouteDesignation (RTDESIGN) = Route Designation0 = Interstate1 = US2 = Michigan3 = Interstate Business Route4 = Interstate Business Spur5 = US Business Route7 = MI Business Route8 = Connector9 = Old (highway routes that have been turned back to the city or county)RouteNumber (ROUTENO) = Route NumberRateNumber (RATSECNO) = this field provides a sequential reference number forsegments of each route over the route’s entire length.AadtRounded = this field contains our final Annual Average Daily Traffic(AADT) number. On our maps and reports this number is reported as a rounded number.CaadtRounded = this field contains our rounded Commercial AverageDaily Traffic (CADT) number. On our maps and reports this number is reported as arounded number.FromDescription = Beginning of traffic segment.ToDescription = End of traffic segment.PR = Physical reference numberPRBmp = Beginning milepoint (for segment)PREmp = Ending milepoint (for segment)

The Approved 2025-2029 (PDF) Five-Year Transportation Program (5YTP) is available for review. The public comment period is open until Sept. 3th, 2024. Projects listed on the map are for reference, and a full list by region is available in the PDF above. To leave a non-project-specific comment, open the general comment form.The 5YTP supports efforts to further bolster Michigan's position as a major player in the global economy. The document includes information about MDOT's funding picture, performance measures, system condition, and specific transportation projects planned for the next five years in each of MDOT’s seven regions.Get involved: The earlier you can get involved and provide comment, the more impact your input can have. The best way to influence a project in your area is to participate in early planning public meetings. To learn more about major projects and transportation studies, visit the MDOT Projects and Programs website. Want to report a problem with a road, highway, or bridge? If so, Contact MDOT with the road name, closest intersection, and description of the issue. MDOT has jurisdiction over state roads (I, M and US routes). All other roads are under local jurisdiction, typically the city or county road agency in that area.Not seeing a project? There are numerous reasons why projects may not appear on the 5YTP dataset, including the funding used, the type of project, and more. For more details, visit the Help/FAQs tab. More Information: Five-Year Transportation Program page

STIP Approved Points/Lines:List of approved (S/TIP status = approved) Job phases in the 23-26 TIPSTIP All Projects Points/Lines:List of projects in 23-26 on the planning DB. Includes S/TIP Exempt Jobs. The State Transportation Improvement Program (STIP) is a list of projects that the state proposes to fund with federal aid.MDOT STIP WebsiteDescriptionData from “All Projects Search” report from the Planning DB schemaCollection DateOn a daily basis as updates are made to the Planning DB schemaUpdate CycleOn a weekly basis as updates are made to the Planning DB schemaData QualityInput via JobNet application and is subject to MDOT/Fed business rules and validationsCoverageEntire stateSymbologyLinear and point datasetsContactBhavana ChandrayanField NameField AliasField DescriptionData TypeCoded Values?JobNet_ID Job # Job_Type_CD Indicates the Job Type. U = Multi-Modal, T=Trunkline and L -Local YesSTIP_FISCL_YR Fiscal Year CNYT_DESC County AGN_TYPE Indicates the type of Agency: county, municipality, etc. AGN_Name Responsible Agency RPT_RTE_NAME Project Name PR_RTE_Name The Route Name on the major PR. RPT_LOC_DESC Limits CNSTR_LGTH Length RPT_WRK_DESC Project Description FUND_SRC_DESC Fund Source. Note: Unlike in report, per the requirements, multiple fund sources are shown comma separated. Since this export ONLY reports rolled up budgets YesTOT_PRJ_COST Total Job Cost BNDRY_DESC MPO/Rural Field NameCodeCode Value DescriptionJob_Type_CDUMulti-ModalTTrunklineLLocal FUND_SRC_DESCNHFPNATIONAL HIGHWAY FREIGHT PROGRAMNHFINATIONAL HIGHWAY FREIGHT INTERSTATENSFHNATIONAL SIGNIFICANT FREIGHT AND HIGHWAY PROJECTSFBPFERRY BOAT PROGRAMEMRPEARMARK REPURPOSEDSPRSTATEWIDE PLANNING & RESEARCHRPRESEARCH PROJECTEDFECON DEVELOPMENT CATEGORY FFLHFEDERAL LANDS HIGHWAYS PUBLIC LANDS AMAERONAUTICS 50% STATE & 50% LOCALFBDFERRY BOAT & TERMINAL DISCRETIONARYSTULSURFACE TRANS URBAN AREAS < 200K POP LOCALSTUTSURFACE TRANS URBAN AREAS < 200K POP TRUNKLNSUGSURFACE TRANS SAFETY 100% FED FOR STU-ITEMSSSTDBE Supportive ServicesSTSURFACE TRANSPORTATION ANY AREASTESURFACE TRANSPORTATION ENHANCEMENTSTGSURFACE TRANS SAFETY 100% FED FOR ST-ITEMSSTLSURFACE TRANSPORTATION RURALSTUSURFACE TRANS URBAN AREAS > 200K POPNHNATIONAL HIGHWAY SYSTEMHSGHIGH SPEED RAIL ROAD CROSSING 100%IMINTERSTATE MAINTENANCE NO ADDED LANESLTALOCAL TECHNICAL ASSISTANCEMMICHIGAN FUNDS MICHIGAN BETTERMENTMCSMICHIGAN CRITICAL STRUCTURESMDAMICHIGAN DRAINAGE ASSESSMENTMERMICHIGAN EMERGENCY MIRMICHIGAN INSTITUTIONAL ROADSNHGNATIONAL HIGHWAY SAFETY100% FEDERALEDCECON DEVELOPMENT CATEGORY CEDCFECON DEVELOPMENT CATEGORY C WITH FEDERALEDDECON DEVELOPMENT CATEGORY DEDAFECON DEVELOPMENT CATEGORY A WITH FEDERALFFHFEDERAL FOREST HIGHWAYBHTBRIDGE REHAB SURFACE TRANSPORTATIONEDFFECON DEVELOPMENT CATEGORY F WITH FEDERALEREMERGENCY RELIEFCMCONGESTION MITIGATION AIR QUALITYCMGCONGESTION MITIGATION 100% FEDERALEBAECON DEVELOP CATEGORY A WITH BONDEDAECON DEVELOPMENT CATEGORY AALAERONAUTICS STANDARD AIP PRE 2004 and POST 2011BRTBRIDGE REPLACEMENT SURFACE TRANSPORTATIONDPDEMONSTRATION FEDERAL AID SYSTEMITSINTELLIGENT TRANSPORTATION SYSTEMSPRGSTATEWIDE PLANNING & RESEARCH 100% FEDERALCTFCOMPREHENSIVE TRANSPORTATION FUNDNRTNATIONAL RECREATIONAL TRAILSSBDSCENIC BYWAYS DISCRETIONARYHPPHIGH PRIORITY PROJECTS DEMONSTRATIONMRRMICHIGAN RAILROADSTTSURFACE TRANS WAS RURAL SECONDARY TRUNKLINEEDDFECON DEVELOPMENT CATEGORY D WITH FEDERALIMDINTERSTATE MAINTENANCE DISCRETIONARYIMGINTERSTATE MAINTENANCE SAFETY 100% FEDERALPLMETRO PLANNINGDPIDEMONSTRATION FEDERAL AID SYS INTERSTATEMBWBMICHIGAN BLUE WATER BRIDGEMXNON STATE FUNDED 100% LOCALAAAERONAUTICS METRO STANDARD RATEAGAERONAUTICS NOISE PROGRAMABAERONAUTICS FEDERAL BLOCK GRANTSAKAERONAUTICS STANDARD AIP AIP 2004 & AFTERHPSLHIGH PRIORITY PROJECTS SAFETEA-LUEBSLEQUITY BONUS SAFETEA-LUCBIPCORRIDOR & BORDER INFRASTRUCTE SAFETEA-LUSRSESAFE ROUTES TO SCHOOL EITHER SAFETEA-LUSRSISAFE ROUTES TO SCHOOL INFRASTRUCT SAFETEA-LUSRSNSAFE ROUTES TO SCHOOL NON INFRAST SAFETEA-LUTIPTRANS IMPROVEMENT PROJECTS SAFETEA-LUDPSADEMONSTRATION SECTION 112 DIVISION AHSIPHIGHWAY SAFETY IMPROVEMENTHRRRHIGH RISK RURAL ROADS HSIP SAFETEA-LUBOWDOJT Training Supportive Services5304CTF STATEWIDE TRANSPORTATION PLANNING5303CTF METRO TRANSPORTATION PLANNING5307CTF URBANIZED FORMULA5309CTF CAPITAL PROGRAM5310CTF ELDERLY AND DISABLED5311CTF NON URBAN FORMULA5316CTF JOB ACCESS REVERSE COMMUTE5317CTF NEW FREEDOMPNRSPROJECTS OF NATIONAL AND REGIONAL SIGNIFICANCETCSPTRANS COMMUNITY AND SYSTEM PRESERVATIONARTGARRA TIGER GRANTDSTPDEMONSTRATION SURFACE TRANSPORTATION PRIORITIESHIPHighway Infrastructure Program - FlexTPFDTRUCK PARKING FACILITIES DISCRETIONARY5308CTF CLEAN FUELS PROGRAM5320CTF ALTERNATIVE TRNSP. PARKS AND PUBLIC LAND5339CTF ALTERNATIVE ANALYSISCPMCMAQ PROJECTS TO REDUCE PM 2.5 EMISSIONSBOBRIDGE NOT CLASSIFIED OFF SYSTEMSTRPSURFACE TRANS SAFETY HWY XXING PROTECTION DEVICESSTRHSURFACE TRANS SAFETY HWY XXING HAZARD ELIMINATIONSRHGSURFACE SAFETY HWY XXING HAZARD ELIMINATION 100%SRPGSURFACE SAFETY HWY XXING PROTECTION DEVISES 100%TATRANSPORTATION ALTERNATIVES PROGRAM FLEXTAUTRANSPORTATION ALTERNATIVES URBAN AREAS > 200K POPTAULTRANSPORTATION ALTERNATIVES URBAN AREAS < 200K POPTALTRANSPORTATION ALTERNATIVES RURALIPDINNOVATIVE PROJECT DELIVERYRRRFMICHIGAN ROADS AND RISKS RESERVE FUNDD129DEMONSTRATION SURF TRANS PRIORITIES SECTION 129PRIPPRIORITY ROADS INVESTMENT PROGRAMAIDACCELERATED INNOVATION DEPLOYMENT DEMONSTRATIONTIGRTIGER DISCRETIONARY GRANT (USDOT)FLAPFederal Lands Access ProgramGF15GENERAL FUND MONEY - GF15GF16GENERAL FUND MONEY - GF16BOIBridge Off System Interstate - No Added CapacityGF18GENERAL FUND MONEY - GF18GF19GENERAL FUND MONEY - GF1911ECTF Non Urban Formula STIP ExemptCTFRCTF- Rail5329CTF State Safety Oversight5337CTF State Of Good RepairMXE100% Local Funds STIP exemptHIPUHIP Urban AreasHIPSHIP Small Urban AreasHIPLHIP Rural AreasINFRINFRA GRANTSBUILBUILD Grants

The Annual Average Daily Traffic (AADT) is the estimated mean daily traffic volume and the Commercial Annual Average Daily Traffic (CAADT) is the estimated mean daily traffic volume for commercial vehicles. For continuous sites, estimates are calculated by summing the Annual Average Days of the Week and dividing by seven. For short-count sites, estimates are made by factoring a short count using Seasonal and Axle (if applicable) day-of-week adjustment factors.

Data Coverage: The dataset covers the entire Federal Aid System in the State of Michigan

Update Cycle: AADT & CAADT volumes are created and released every year.

Transportation Data Management System (TDMS) AADT Calculation Help

Traffic Monitoring Program

The v25 download is available for use and valid as of 12/31/2024. Due to issues with other annual processes, Roadsoft and other MDOT systems are not scheduled for v25. Please be aware if you update your data to use this v25 centerline info, it may not align with Roadsoft and other MDOT systems at this time.The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Reference (PR), Control Section (CS) and Route networks These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS.For more information, please view the Michigan Linear Referencing Home Page.

The draft listing of projects for the 2026-2029 State Transportation Improvement Program (STIP). The STIP is a required four-year planning document that lists road, bridge, transportation alternatives, and transit projects that the state intends to fund with federal aid provided under the Federal Aid Transportation Program in Fiscal Years (FYs) 2026-2029.