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I-84 Expansion in Caldwell

ITD is making plans to improve I-84 west of the Franklin Road Interchange in Caldwell.

ITD está haciendo planes para mejorar el I-84 al oeste del Intercambió de Franklin Road en Caldwell.

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What's next for I-84 in Caldwell?

The Idaho Transportation Department is moving forward with plans for expanding I-84 in Caldwell. Future projects include:

• Final design of improvements between the Centennial Way and Franklin Road interchanges in Caldwell (exits 27-29).
• An environmental study for future expansion between the Idaho 44 and Centennial Way interchanges at the western edge of Caldwell (exits 25-27).

Both projects are funded through Idaho Governor Brad Little’s “Leading Idaho” transportation funding solution. Funding for construction will be identified in future years.


I-84 is the main commuter and freight corridor through the Treasure Valley and southern Idaho.

Over the last five years, ITD made major improvements to I-84 in Nampa and eastern Caldwell. These improvements are expected to be completed in 2023.

In 2018, ITD completed an environmental study of future I-84 improvements as far west as Centennial Way. Only part of these improvements were funded initially.

In 2021, the Idaho Legislature approved the Leading Idaho transportation funding solution to fund critical infrastructure improvements throughout the state. Through this program, ITD will continue the expansion of I-84 through Caldwell.

Environmental study of I-84 in Nampa (Karcher to Franklin)
Design of I-84 improvements in Nampa
Environmental study of I-84 between Caldwell (Centennial Way) and Karcher
Construction begins on I-84 between Caldwell and Nampa
Environmental study began for I-84 west of Centennial Road
Design work began for I-84 in Caldwell (Franklin Road to Centennial Way)
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