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Functional Classification

Montana follows the Functional Classification (FC) system for both state and non-state roads.

To properly determine the type of a Freeway, Major Highway, Minor Highway, or Primary Street, refer to the MDT Functional Classification map and cross reference that against the Waze Functional Classification table.

GIS Resources

Consolidated

A Montana Area Manager has created an ArcGIS map which consolidates data from many of the following resources as layers on one map. There is also a script which will open the map and keep it synced to your current view.

Statewide

Montana Cadastral data is a framework of property boundaries along with associated land ownership information (who owns what and where). The goals of the Project are to produce, and maintain, cadastral information in a consistent, digital format for the entire State of Montana. This is a crowd-sourced dataset and should be used with extreme caution as it may contain errors.
To properly type a Freeway, Major Highway, Minor Highway, or Primary Street, refer to the Montana ArcGIS site and cross reference that against the Waze Functional Classification table.
Urban area FC maps (PDFs, cross-reference with ArcGIS site when necessary)
Montana Department of Transportation homepage
Montana Department of Transportation Interactive Maps
List of Montana Numbered Highways
The Montana Road Log provides descriptions of Montana highways (useful to find start and end points when road signs are limited, or GIS resources aren't clear). From the MDT Brochures page. IMPORTANT NOTE: The "N" numbers are not the US Highway numbers; you must look in the details for that "N" route to find statements like "ENTER US 2" to determine the correct number.
FC Statewide Map .pdf
MDT Speed Limits. Legal reference: MT Code Annotated 2015.

By County

Some counties also offer interactive GIS maps. Those we are aware of are found here.

By City

MDT City, County, Urban, and Unincorporated Maps

MDT Incorporated City Maps

City Plat maps show public roads on a land grid of township, range and section lines. These maps do not imply roadway ownership or maintenance responsibility. Cultural features adjacent to roads are displayed by symbols. The maps also indicate managed areas by owner, lakes, reservoirs, streams, canals/ditches, and, railroads.

City system route maps are updated annually to show current On System Routes and the City Boundary. On System Routes are comprised of the Interstate NHS, Non-Interstate NHS, State Primary, and State Secondary routes.

MDT County Maps

County maps show roads on a land grid of township,range and section lines. MDT departmental route id's are indicated with a beginning label and ending label, and MDT corridor id's are added to some routes where possible. These maps do not imply roadway ownership or maintenance responsibility. Cultural features adjacent to roads are displayed by symbols. The maps also indicate managed areas by owner, lakes, reservoirs, streams, canals/ditches, and, railroads.

City areas are blocked out on these PDF maps but they are available in the Urban maps, City Systems maps and Unincorporated Town Maps.

County system route maps are updated annually to show current On System Routes. On System Routes are comprised of the Interstate NHS, Non-Interstate NHS, State Primary, and State Secondary routes

MDT Urban Maps

Highway Systems include:

the National Highway System (NHS) - includes the Interstate and other principal arterials
the Primary Highway System
the Secondary Highway System
the Primary Streets

The six functional classifications for urbanized and urban areas include:

Interstate
Principal Arterials
Minor Arterials
Major Collectors
Minor Collectors
Local streets

MDT Unincorporated Town Maps

Unincorporated town maps show public roads on a land grid of township, range and section lines. These maps do not imply roadway ownership or maintenance responsibility. Cultural features adjacent to roads are displayed by symbols. The maps also indicate managed areas by owner, lakes, reservoirs, streams, canals/ditches, and, railroads

WME Scripts

Useful scripts to help you start your WME carrier. Please read the General installation instructions before installing scripts.

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