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Big changes to key 2C route: ITD looks for public input on Karcher Rd. & interchange


The Idaho Transportation Department is inviting the community to learn more about two road projects in Canyon County.

One of the projects is centered around improvements to the I-84 Karcher Interchange. ITD plans to widen the interchange bridge and add a new westbound lane across the interchange to Caldwell Blvd. The design also calls for improvements to ramps, signals, and intersections.

The other project would widen State Highway 55 (also known as Karcher Rd.) to two lanes in each direction between Farmway and Middleton roads. A 10-foot bicycle and pedestrian path would also be added to the north and south sides of SH-55. You can read the full project details here.

“These two projects are part of ITD’s ongoing work to address growth and the resulting congestion on highways in Canyon County, particularly State Highway 55,” said project manager Erika Bowen. “ITD is targeting the most urgent needs in this area while continuing to plan for long-term solutions.”

Funding for these projects would come from the Leading Idaho Transportation Expansion and Congestion Mitigation Program. ITD says once construction funding has been confirmed, work on the Karcher Interchange could begin in 2023 and the SH-55 project would start in 2024.

The public is invited to an open house on Thursday, July 7 to learn more about both projects. The open house will be at Nampa Christian School from 5 p.m. to 7 p.m. A Spanish interpreter will be on-site to translate for anyone who needs it.

Gretchen Parsons - BoiseDev Managing Editor
Gretchen Parsons - BoiseDev Managing Editor
Gretchen Parsons is BoiseDev's managing editor. Contact her at [email protected].

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