One of the greatest challenges facing Idaho’s transportation system is how to meet the needs of a rapidly growing population and ever-changing economy. According to the 2020 Census, Idaho was the second fastest growing state in the last decade.
Through transportation planning, the Idaho Transportation Department:
- Articulates a long-term vision for Idaho’s state highway system
- Implements statewide transportation policy through partnerships with federal, state, regional, and local agencies
- Oversees the framework for the department’s project management process
- Employs a number of tools to manage projects efficiently and effectively
- Provides geographic information products and services through the development of spatially enabled applications, databases, mapping products, analysis, education, and technical support.
Transportation planning includes a comprehensive consideration of possible strategies, an evaluation process that encompasses diverse viewpoints, the collaborative participation of relevant transportation-related agencies and organizations, and open, timely, and meaningful public involvement.
ITD Planning Documents and Maps
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Full length version of the plan
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Short version of the plan
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Federal Highway Administration (FHWA) approved 10/28/2016
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FHWA approved 10/28/2016
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Online Web Application displaying Idaho’s Functional Classification, National Highway System and Urban Boundaries
Long-Range Transportation Plan
ITD is in the process of updating the 2040 Long-Range Transportation Plan that was adopted in 2019. Public meetings were held statewide in November and December of 2025 to collect feedback for the update. The 2050 plan is expected to be completed in late 2026.
To learn more about the update to the plan, visit: Idaho 2050 Long-Range Transportation Plan
Carbon Reduction Strategy
The ITD has examined a range of carbon reduction strategies eligible for CRP funding, feasibility, and context sensitivity to Idaho. The ITD has identified strategies that maximize cost efficiency and improve the transportation system. The outcome of the CRS development process identified three strategic categories to receive CRP funding, including Truck Parking and Freight Amenities, Traffic Operations and Technology, and other potential carbon reduction strategies.
Non-Metropolitan Local Official Consultation Process Plan
The Idaho Transportation Department (ITD) developed and adopted a Non-Metropolitan Local Official Consultation Process Plan in February 2016 in compliance with federal code 23 CFR450.210 (b). This regulation requires each state to have a documented process “for consulting with local officials” located outside of federally designated metropolitan planning areas during the development of statewide or district transportation plans and the Idaho Transportation Improvement Program (ITIP). States are further required in federal code 23 CFR 450.210(b)(1) to review this process and solicit comments every five years regarding the effectiveness of the consultation.
