Projects 9 |

COMPLETE: I-15 Rose to Lava Rocks Repaving

The Idaho Transportation rehabilitated the pavement on I-15 north of Blackfoot.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15
- Project Phase
  Complete
I-15 US-26/Blackfoot Interchange (Exit 93)

This project will modernize aging infrastructure to enhance safety for motorists, improve interchange operations and increase interstate capacity.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15 US-26
- Project Phase
  Planning & Design
SH-21 Lowman Bridge

The old bridge over the South Fork of the Payette River is at the end of its life cycle and is being rebuilt.
- Project Regions
  Southwest Idaho
- Project Routes
  State Highway 21
- Project Phase
  In Construction
US-2 Priest River Bridge

ITD plans to replace the Priest River Bridge on US-2 to improve safety, traffic flow, and add pedestrian access.
- Project Regions
  North Idaho
- Project Routes
  US-2
- Project Phase
  Planning & Design
I-84 Burley and Heyburn Interchanges

In the spring of 2024, the Idaho Transportation Department (ITD) embarked on a multi-year project to replace the outdated I-84 Burley and Heyburn interchanges.
- Project Regions
  South-Central Idaho
- Project Routes
  Interstate 84
- Project Phase
  Planning & Design
SH-27: G-Canal

In winter 2025, the Idaho Transportation Department will replace the signal and the culvert over G Canal. G Canal was built in the 1930s and runs underneath State Highway 27 at the intersection of 27
- Project Regions
  South-Central Idaho
- Project Routes
  Interstate 84
- Project Phase
  Planning & Design
I-15 Exit 89 to Exit 93 Widening

The Idaho Transportation Department is developing plans to widen I-15 to three lanes in each direction near Blackfoot.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15
- Project Phase
  Planning & Design
I-15 South Blackfoot Interchange (Exit 89)

The new interchange design will prioritize safety, operations and capacity to meet eastern Idaho’s growing transportation needs. The design of this interchange is anticipated to be completed in 2026.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15
- Project Phase
  Planning & Design
I-15 Northgate to Blackfoot Widening

The Idaho Transportation Department is widening Interstate 15 to three lanes in each direction between the Northgate and Fort Hall interchanges.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15
- Project Phase
  In Construction
US-91 Siphon Road to Reservation Road

ITD is developing plans to improve safety and operations on US Highway 91 (US-91) between Siphon Road and Reservation Road in Chubbuck.
- Project Regions
  Southeast Idaho
- Project Routes
  US-91
- Project Phase
  Planning & Design
US-91 Park Lawn and Siphon Road

The project will widen the existing US-91 (Yellowstone Ave.) from the current three-lane section to five lanes from Park Lawn to the New Day Parkway intersection.
- Project Regions
  Southeast Idaho
- Project Routes
  US-91
- Project Phase
  Planning & Design
Yellowstone Ave. (US-91) Concrete Replacement

The Idaho Transportation Department is designing plans to replace the roadway concrete in two sections of Yellowstone Avenue (US-91) in the cities of Pocatello and Chubbuck.
- Project Regions
  Southeast Idaho
- Project Routes
  US-91
- Project Phase
  Planning & Design