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Middleton Road Overpass

ITD is replacing the Middleton Road Overpass. Replacing the overpass will allow additional lanes to be built on I-84. Construction on the overpass began in August 2020 and will be completed in Spring 2021.

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Para más información y para recibir una hoja de inforamación, por favor llame 208-334-8567
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Construction Update

Construction

ITD closed the Middleton Overpass in August 2020. Motorists will be detoured for nine months. Click here to see the detour map.

What to expect during construction:

  • The overpass will be closed and a detour will be in place.
  • Business access will remain open during normal business hours.
  • Work may be noisy at night due to backup alarms and large equipment.
  • Occasional I-84 detours will occur for bridge demolition and girder placement.
  • Cherry Lane will be closed approximately 3-4 months during construction.
  • Construction work may cause dust and debris.

Improvements

In addition to making room for additional lanes on I-84, the new Middleton Road Overpass will have new improvements.

This includes:

  • One lane in each direction on the overpass.
  • Wider shoulders on both sides to accommodate bicycles.
  • Sidewalk on the east side of the bridge.
  • 17’ vertical clearance on I-84.
  • A traffic signal at the intersection of Cherry Lane and Middleton Road.

See the overpass demolition!

Click here to see the Facebook LIVE video with Mark Campbell from ITD on the night of demolition!

 

Watch a time lapse of the Middleton Overpass construction here!

Other projects in the area

Nampa Highway District

  • Midland/Ustick Roundabout.

Canyon County Highway District

  • Click here for information of current and recent projects.

City of Nampa

  • Click here for information on Nampa’s Street Division.

City of Caldwell

  • Click here for information Caldwell’s Street Department Road Closures.

Photo Gallery

Mid-August 2020
Middleton Overpass Construction begins
Early 2021
I-84 Widening in Nampa complete
Spring 2021
Middleton Overpass Construction complete
Summer 2021
Ustick Overpass Construction begins
Late Spring/ Early Summer
I-84 Widening between Nampa and Caldwell begins
Frequently Asked Questions
You've got questions, we've got answers! Here are some of the most common questions we've received about this project.
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General
Closures
Detours
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General
Why is ITD replacing the Middleton Road Overpass?
Why is ITD replacing the Middleton Road Overpass?

The overpass must be replaced to allow for future widening on I-84 between Franklin Road Interchange in Caldwell and Karcher Interchange in Nampa. As part of the project, the Middleton and Cherry Lane intersection must be reconstructed.

General
What improvements are planned for Middleton Road Overpass?
What improvements are planned for Middleton Road Overpass?

Improvements for the project include:

  • One lane in each direction on the overpass.
  • Wider shoulders on both sides to accommodate bicycles.
  • Sidewalk on the east side of the bridge.
  • 17’ vertical clearance on I-84.
  • A traffic signal at the intersection of Cherry Lane and Middleton Road.
Closures
How long will the overpass be closed?
How long will the overpass be closed?

The Middleton Road Overpass will be closed for approximately nine months. It is expected to re-open in May 2021.

Detours
What is the detour route for the Middleton detour?
What is the detour route for the Middleton detour?

Traffic will be detoured to Ustick Road to the Nampa-Caldwell Bouelvard. Click here for a detour map.

Closures
Why is the Idaho Transportation Department closing the Middleton Road and Cherry Lane intersection?
Why is the Idaho Transportation Department closing the Middleton Road and Cherry Lane intersection?

ITD is closing the intersection of Middleton Road and Cherry Lane to raise the elevation of the intersection to match the height of the new Middleton Overpass. The Middleton Overpass will be higher to increase the vertical clearance on I-84.

Closures
How long will Cherry Lane be closed?
How long will Cherry Lane be closed?

The closure will last approximately two months.

General
Why can’t ITD wait until the Ustick/Midland roundabout is completed before they start work?
Why can’t ITD wait until the Ustick/Midland roundabout is completed before they start work?

If the grade of Cherry Lane is not raised, the overpass will be unable to connect to Middleton Road. It is time sensitive because new asphalt pavement is being placed at the intersection. Asphalt must be placed during warmer temperatures. If work on the intersection is delayed, it will delay other parts of the project later on, and would likely delay future projects to improve I-84. The I-84 improvements have been planned sequentially and it is important to complete all projects on time.

General
Why is a full closure necessary at the Cherry Lane/Middleton Road intersection? Can’t ITD keep one lane open?
Why is a full closure necessary at the Cherry Lane/Middleton Road intersection? Can’t ITD keep one lane open?

The intersection will be raised by five feet. Raising an intersection requires working on the whole intersection at one time. There is no way to keep one lane open.

Detours
What is the detour route for Cherry Lane?
What is the detour route for Cherry Lane?

The detour will be in place from Middleton Road to Linden Road and Northside Northside Boulevard to Cherry Lane until the Midland/Ustick roundabout is finished in late September. Once finished, the detour route will be in place from Middleton Road to Ustick Road to Midland Boulevard.

General
How will emergency responders access neighborhoods in the area with so many intersections closed?
How will emergency responders access neighborhoods in the area with so many intersections closed?

ITD has worked closely with emergency responders in the area to ensure they have adequate access routes in the event emergency services are needed.

General
Why is ITD closing the Middleton and Cherry intersection when the Midland/Ustick Roundabout construction is taking place at the same time? Did ITD and Nampa Highway not coordinate?
Why is ITD closing the Middleton and Cherry intersection when the Midland/Ustick Roundabout construction is taking place at the same time? Did ITD and Nampa Highway not coordinate?

ITD and the Nampa Highway District have been coordinating for a couple of years during the design of the Middleton Road Overpass. The Midland/Ustick roundabout project was supposed to be complete in July 2020. Unfortunately, the public utilities were not relocated in time and it delayed the project by two months. ITD and Nampa Highway District are continuing to coordinate.

General
How do I learn more about the project?
How do I learn more about the project?

To learn more:

  • Visit the project website at ITDPROJECTS.ORG/84CORRIDOR
  • Text 84Corridor to 47177
  • Call 208-334-8002
  • Email 84CORRIDOR@ITD.EDAHO.GOV

For business resources: ITDPROJECTS.ORG/I84Businessresources

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