Projects 9 |

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
US-30: Yellowstone Avenue to Garrett Way

ITD is planning improvements to US-30 from Yellowstone Ave to Garrett Way including adding a third lane to improve signal operations and mobility and pedestrian facilities.
- Project Regions
  Southeast Idaho
- Project Routes
  US-30
- Project Phase
  Planning & Design
Construction is now complete: SH-55, State Street to Horseshoe Bend Rehabilitation

Construction will resurface SH-555 from State Street to Horseshoe Bend.
- Project Regions
  Southwest Idaho
- Project Routes
  State Highway 55
- Project Phase
  Complete
SH-44, I-84 to Star Road

The goal of this project is to evaluate and identify transportation improvements to enhance safety, operations, and multimodal connectivity to meet current and future needs.
- Project Regions
  Southwest Idaho
- Project Routes
  Interstate 84 State Highway 44
- Project Phase
  Planning & Design
SH-55 Eagle Road Safety Corridor

The goal of this multi-year initiative is to enhance safety on Idaho's busiest non-interstate highway.
- Project Regions
  Southwest Idaho
- Project Routes
  State Highway 55
- Project Phase
  In Construction
I-15 Inkom Corridor

ITD is rebuilding I-15 structures at three locations in and near Inkom.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15
- Project Phase
  In Construction
COMPLETE: I-86 and I-15 System Interchange

The Idaho Transportation Department improved the I-86/I-15 System Interchange in the Pocatello/Chubbuck metropolitan area.
- Project Regions
  Southeast Idaho
- Project Routes
  Interstate 15 Interstate 86
- Project Phase
  Complete