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I-15 Northgate Interchange

The I-15 Northgate Interchange project will improve safety and mobility by reducing congestion on I-86 and I-15. The project will better accommodate the area’s projected future growth northeast of Pocatello and Chubbuck in Bannock County.

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View of the Northgate Overpass above I-15

View of the future Northgate Overpass above I-15.

The interchange is being funded through a public/private partnership between ITD, the cities of Chubbuck and Pocatello, Bannock County, Bannock Transportation Planning Organization, the Pocatello Development Authority, and Millennial Development.

The project is currently under construction and projected to be completed in the fall of 2019. Once complete, the project will provide new connections on both sides of Interstate 15 for residents in Pocatello and Chubbuck. ITD will build the interchange. Local agencies and private developers will build several miles of connecting roads and acquire right-of-way.

October 2018
Earthwork on east side of bridge structure begins.
Asset 5
November 2018 to March 2019
Construction of the center pier for the bridge structure.
Asset 5
April 2019 to September 2019
Construction of the bridge abutments and walls. Set bridge girders and pour bridge deck.
Asset 5
Fall 2019
Project substantially complete and open to traffic.
Asset 5

Downloads & Resources

Map details of the combined projects being built for the I-15 Northgate Parkway.

Northgate Parkway Project Map DetailsAsset 4
I-15 Northgate Parkway - Overall Project View ITD Construction Area for the I-15 Northgate Parkway West side connection to I-15 Northgate Parkway East side connection to I-15 Northgate Parkway
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