ITD shares final design plans for SH-55, Farmway to Middleton Road project

Leading Idaho - TECM Program

NAMPA – The Idaho Transportation Department (ITD) is sharing the finalized design plans for the State Highway 55, Farmway to Middleton Road project, which is part of Governor Brad Little’s Leading Idaho Transportation initiative.

An online meeting will be available July 20-27 to ensure everyone can learn about the project and provides an opportunity to give feedback. The open house took place on July 20 in Nampa.

Interested parties can participate online and learn more about the project at

The SH-55, Farmway to Middleton project involves rebuilding and widening several miles of SH-55 west of the Karcher Interchange in Nampa and Caldwell. Improvements being constructed as part of the project include:

  • Two lanes in each direction
  • Raised center median between Middleton Road and 10th Ave.
  • Wider shoulders
  • 10 ft. bicycle and pedestrian pathway on both sides of the highway

Some changes have been made to the design since last summer’s public meeting. These include removal of mid-mile U-turns and widening the SH-55/Middleton Road intersection. ITD has determined that the design will still meet the needs of motorists through 2045.

Construction is expected to begin in 2024 and is anticipated to be completed by the end of 2026.

Funding for the design stage comes from the Leading Idaho initiative, which allows ITD to build critical infrastructure today that would otherwise take many years to build.

A Spanish interpreter and Spanish-language materials was available at the July 20 open house. Community members can request additional materials in Spanish by calling 208-334-8002.