Canyon Highway District #4 (CHD4) has developed a Draft Transportation Planning Study that will prioritize projects for the future. A comment period is now available for the public to give their input. Please click here to take our survey and let us know what you think. This information will be considered in the study as it becomes finalized.


Demographic trends were evaluated based on Community Planning Association of Southwest Idaho (COMPASS) models and supporting Geographic Information System (GIS) data. The following exhibits identify current conditions, historical trends, and future projections of demographics within the CHD4 jurisdiction.


Multimodal Transportation

Multimodal transportation planning documents from other jurisdictions were evaluated along with stakeholder and CHD4 personnel meetings for inclusion into the report. The exhibits are based on GIS data provided by COMPASS. The following are definitions of terms used in the report:

  • Pathways are considered to accommodate multi-modal transportation and are physically separated from the roadway. Pathways are typically used in areas where vehicle traffic travels at high speeds.
  • Bike Lanes are lanes approximately 4-5 feet in width dedicated to modes of transportation faster than walking/running and slower than vehicles.
  • Shared Roadways are roadways dedicated to modes of transportation faster than walking/running. Automobiles are anticipated to be able to pass bicyclists with an acceptable amount of delay for traffic to create a passing opportunity.
  • Sidewalks are dedicated to walking/running transportation.

Please note, bus stops are also displayed.


Roadway Operations

The CHD4 roadway network was analyzed by intersections and road segments. Traffic volumes counted for 2018 and projected for 2040 were used to determine the Level of Service. A LOS D is adequate but approaching unstable flow. Therefore, LOS D segments and intersections were identified, and LOS E or F segments and intersections were listed as needing improvement.