The Idaho Transportation Department is developing design plans for I-84 improvements between the Centennial Way and Franklin Road interchanges (Exits 27-29) in Caldwell.
Read MoreThank you all for participating in the I-84, Centennial Way to Franklin Road project open house. Be sure to watch the video.
ITD completed an environmental study and preliminary design plans for this corridor in 2020. The study helped ITD determine how to improve long-term safety and capacity on I-84 while minimizing impacts to the environment and adjacent properties.
From Karcher Interchange to Franklin Road Interchange, final design was completed and construction is underway.
Through the Leading Idaho TECM funding program, ITD is now moving forward with final design plans between Centennial Way and Franklin Road in Caldwell.
This design is being funded with Transportation Expansion and Congestion Mitigation (TECM) funds as part of Governor Little’s Leading Idaho initiative. The program allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure today that would otherwise take many years to fund and build.
The I-84 corridor is one of 13 approved TECM corridors in the state. Funding for the construction phases on this corridor will be determined based on project readiness and funding availability.
Preliminary estimates value the improvements needed in this corridor at $20 million to $25 million, which includes design, right-of-way and construction costs.
Working
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This project is necessary to improve safety and mobility on I-84 between Centennial Way (Exit 27) and Franklin Interchange (Exit 29). Traffic volumes are expected to double and congestion in this corridor will continue to increase.
ITD surveyed the community during the recent environmental re-evaluation and found that residents on the south side of I-84 did not want a sound wall installed, while residents on the north side did.
Federal law states that a noise analysis is required when a transportation project is likely to increase sound levels. Adding lanes to I‐84 in Canyon County is expected to increase traffic noise. The I‐84 noise analysis identified areas that would be impacted by future traffic noise. It also showed whether certain locations would benefit from noise abatement measures such as a noise wall.
Construction at these on ramps creates a narrow work zone. The extended ramp closures are necessary to protect drivers and construction workers in this narrow work zone.
ITD provided several opportunities for the public to comment on this project. An in-person meeting was planned Nov. 9, 2022 and virtual public meeting was planned Nov. 9-20, 2022. Community members were invited to review plans and provide input.
To stay informed the public is invited to head to the project website: itdprojects.org/84corridor. Or:
ITD conducted a traffic study and a signal was only needed at the westbound off-ramp. A signal at the eastbound off-ramp was not needed in the next 20 years.
ITD will be improving the lighting on I-84 at the 10th Avenue interchange which includes the ramps and intersections and at Centennial Way interchange ramps.
ITD will also be replacing and improving the lighting on Hannibal and Frontage Road, the pedestrian bridge and under the new 10th Avenue bridge.
Construction is currently scheduled to begin Summer of 2023.