Montana Department of Transportation

Bigge Crane Megaload Permit Issued

A permit has been issued for a megaload to travel from Idaho through Montana to Great Falls. The move, planned for seven stages, will travel at night to minimize travel disruptions to others along the route. MORE INFORMATION

Main Content

Complete Project

Polson Area Transportation Plan logo

Polson Area Transportation Plan

Data & Figures

Camp Dresser and McKee (CDM) will be producing informational displays about existing transportation conditions and findings. Many of these products will be in graphical form to make it easier for you to review and understand. The following topics are available at this time:

Plan Area

This map shows the City of Polson and those portions of Lake County and Confederated Salish & Kootenai Tribes land included in this transportation planning effort. Note that the entire City of Polson is contained within the study area boundary.

Plan Area Boundary

Functional Classification System / Major Street Network

Areas within Montana have what is known as a Federally approved "functional classification system". The Federally approved functional classification system for the Polson area is shown on the following maps. In addition to the Federally approved functional classification system, many jurisdictions also have their own street classification network. Streets generally fall into four (4) roadway classifications, all of which are shown on the following graphics. These roadway classifications are:

  • Principal Arterials
  • Minor Arterials
  • Collectors
  • Local Streets

Principal Arterials carry vehicles efficiently from place to place serving most trips entering and leaving an area. Access to adjacent land uses is a minor function for this classification of street.

Minor Arterials carry vehicles quickly from place to place connecting the principal arterials, but access to adjacent land use has a higher priority.

Collectors link local access streets to the arterial network. Speeds are generally lower than on arterials and access to adjacent land uses has a high priority.

The primary purpose of Local streets is access to adjacent land uses. Speeds are intended to be lower and access to and from driveways is frequent.

The Federally approved functional classification system includes all streets, other than local streets, that are used by the public to get from place to place within the study area.

Functional Classification System graphic to be developed.