Chinden West US-20/26 — Middleton Rd to Star Rd Project

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Welcome

Thank you for your interest in the Chinden West US-20/26, Middleton Road to Star Road project.

The purpose of this online meeting is to provide information about design plans to improve 6 miles of U.S. Highway 20/26 (US-20/26) from Middleton Road to Star Road.

If you have questions after participating in the online meeting, please email chindenwest@itd.idaho.gov and a member of the project team will respond within 1 to 2 business days, excluding weekends.

This meeting will remain available through June 29, 2023.

project map

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How to navigate these slides:

  • Click on the arrows on the bottom left and right side of your screen.
  • Use the navigation menu at the left of the screen to revisit any part of the meeting.

How to Participate:

  • Click through the slides to learn more about the project.
  • Comments
    • Provide your comments at any time by clicking the “ COMMENT" button at the top right of the screen, by email or mail.
    • You can close the online form to continue through the slides. Please make sure to hit the “Submit” button to confirm that your comment is sent to the project team.
  • The entire session should take less than 15 minutes to complete.

Project Background

In 2017, the Idaho Transportation Department (ITD) completed the US-20/26 Corridor Study from Interstate 84 (I-84) to Eagle Road. The study identified needed long-term improvements, including the following:

  • Six travel lanes (three in each direction)
  • A raised island median to separate eastbound and westbound traffic
  • Improved roadway shoulders
  • A 10-foot detached shared-use path for pedestrians and cyclists
  • Signalized intersections

To advance improvements and maximize existing funding, ITD set an interim goal of widening the corridor to four lanes from I-84 to Eagle Road.

Project corridor map includes corridor areas awaiting 2023 construction: I-84 to Middleton, Star to SH-16 and Meridian to Locus Grove. Map also included Middleton to Star corridor areas with a construction completion in 2024. SH-16 to Linder, Linder to Meridian and Locus Grove to Eagle corridor construction is complete.

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Intersection Improvements

ITD plans to improve and signalize six intersections within the corridor at Middleton Road, Midland Boulevard, Northside Boulevard, Franklin Boulevard, 11th Avenue, and N Can Ada Road.

Intersection improvement maps shows intersection improvements at Middleton Road, Midland Boulevard, Northside Boulevard, North Franklin Boulevard, 11th Avenue North and North Can-Ada Road. The ultimate project will add a signal at Santa Ana Avenue.

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ITD is working with local agencies to coordinate future US-20/26 connections to local roads. The design currently shown may change as a result.

Chinden West US-20/26 Middleton Road to Star Road

Current improvements will widen the road to four travel lanes (two in each direction), create a median, and make shoulder improvements. The project will also replace existing canal crossings, construct signalized intersections at each mile, improve drainage, and add a shared use path.

Ultimately, this project will widen the roadway to six lanes.

Middleton Road to Star Road Project Area Map showing construction routes between Middleton road and Star road.

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Middleton Road to Star Road Improvements

ITD will widen the road to four travel lanes (two in each direction), create a median, and make shoulder improvements. The project will also replace existing canal crossings, construct signalized intersections at each mile, improve drainage, and add a shared use path.

Typical cross section showing 200-foot area that includes right of way, two 10-foot shared use paths, two 8' shoulders, two 12-foot travel lanes in each direction, one 14 foot median, grass, trees, and sky.

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Ultimately, this project will widen the roadway to six lanes.

Typical cross section showing 200-foot area that includes right of way, two 10-foot shared use paths, two 8' shoulders, three 12-foot travel lanes in each direction, one 14-foot median, grass, trees, and sky.

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What Has Changed Since 2017?

The environmental assessment (EA), completed in 2017, identified a few design features that will NOT be implemented, including the following:

Cul-de-sacs at Knott Lane, Madison Road and Prescott Lane

Instead, ITD will construct right turn lanes for deceleration at these locations. These intersections will be limited to right in/right out configurations for both the interim and ultimate designs.

Map image of half or full CFI changes at Midland Boulevard, Northside Boulevard, North Franklin Boulevard, 11th Avenue North, and North Can-Ada Road.

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Half or full Continuous Flow Intersections (CFI)

Instead, ITD will construct improved signalized intersections at Midland Boulevard, Northside Boulevard, Franklin Boulevard, 11th Avenue, and N Can-Ada Road.

Map image of half or full CFI changes at Midland Boulevard, Northside Boulevard, North Franklin Boulevard, 11th Avenue North, and North Can-Ada Road.

Click image to enlarge

Construction Updates

Mid-Summer 2022 to Spring 2024.

Improvements include the following:

  • Six lanes with dedicated right and left turn lanes
  • Raised center median
Combined project area map and construction schedule including construction area between U.S. 20/26: I-84 to Middleton Road in Caldwell. This schedule highlights interstate 84 to Middleton to be constructed in 2022

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Schedule

Spring 2022 – Spring 2023 Preliminary Design 
                                             Summer 2022 – Fall/Winter 2023 ROW Acquisition 
                                             Spring 2023 – Fall/Winter 2023 Final Design 
                                             2024* Construction Begins *Subject to change 
                                             May 2022 Public Meeting WE ARE HERE

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Stay Involved

Thank you for participating!

You can submit comments via the comment form within this online meeting. You can also ask questions or submit comments via email or mail to:

chindenwest@itd.idaho.gov

Chinden West Project
C/O Matthew Heinichen
Idaho Transportation Department
PO Box 7129
Boise, ID 83707-7129

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