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.
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:
In addition to making room for additional lanes on I-84, the new Middleton Road Overpass will have new improvements.
This includes:
ITD needs to raise the height of the Cherry Lane/Middleton Road
intersection to match the new Middleton Road Overpass on I-84.
When the new overpass opens this spring, it will have more clearance
for trucks on I-84.
To keep the expansion of I-84 between Nampa and Caldwell on schedule, work at the intersection must be completed while the weather is good.
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 demo here!
Nampa Highway District
Canyon County Highway District
City of Nampa
City of Caldwell
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.
Improvements for the project include:
The Middleton Road Overpass will be closed for approximately nine months. It is expected to re-open in May 2021.
Traffic will be detoured to Ustick Road to the Nampa-Caldwell Bouelvard. Click here for a detour map.
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.
The closure will last approximately two months.
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.
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.
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.
ITD has worked closely with emergency responders in the area to ensure they have adequate access routes in the event emergency services are needed.
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.
To learn more:
For business resources: ITDPROJECTS.ORG/I84Businessresources
