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State Highway 16 Design

The Idaho Transportation Department is designing the final phase of the SH-16 extension.

Para solicitar más información sobre este proyecto en Español, por favor llame (208) 334-8008.

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The vision for State Highway 16

State Highway 16 currently runs from the northern limits of Meridian to the southern limits of Emmett.

ITD is extending the highway south to I-84, providing a much-needed north-south route through the central Treasure Valley. Construction of the highway extension and an interchange at I-84 will be completed in 2024. Learn more about construction.

ITD is now designing the final phase of this project. This final phase will expand the I-84 interchange and complete the interchanges at Franklin Road, Ustick Road, US-20/26 and SH-44.

Construction of the final phase will be scheduled when funds are available.


Community input

ITD will continue to gather input from those who live, work and commute in this area. Community members will have an opportunity to review final design plans in 2022 and 2023.

ITD will post updates and public meeting dates on this website. To send a comment to the design team, email

ITD completed an Environmental Impact Statement for State Highway 16
ITD designed and built the first 2.5 miles from State Highway 44 to U.S. 20/26 (Phase 1)
ITD refined the design for the remaining 5 miles, updated the EIS and reduced the highway footprint
ITD completed final design of Phase 2 (between I-84 and U.S. 20/26)
Leading Idaho Transportation Program funded Phase 2 construction
ITD began design plans for Phase 3
Summer 2022
Construction of Phase 2 begins
Phase 2 construction complete
Phase 3 design complete
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