Projects |

North Idaho Bridge Repairs

Ongoing overview of the various bridge repair projects scheduled annually across North Idaho to ensure safety and continued service to the traveling public for years to come.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90 State Highway 3 State Highway 5 State Highway 58 US-95
- Project Phase
  In Construction
I-90 Mullan to Montana

Approximately six miles of shoulder barrier will be replaced on I-90. The project will install modern, more durable barrier designed to improve visibility and withstand harsh winter conditions.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  Planning & Design
I-90 Greensferry Road Overpass

Bridge railing upgrades and pavement improvements are scheduled to begin in spring 2026 and will help extend the life of the structure over I-90.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  In Construction
I-90 Morning Mill Interchange

The Idaho Transportation Department is planning for the future replacement of the Morning Mill bridge over Interstate 90 near Mullan.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  Planning & Design
I-90 SH-41 Interchange

ITD is reconstructing the I-90 and SH-41 interchange in Post Falls, along with making improvements to SH-41 and nearby local roads, to enhance safety, traffic flow and connectivity in the area.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  In Construction
I-90 Corridor Study: Washington to SH-41

The study will evaluate needs and identify potential solutions like additional lanes and reconfigured interchanges to improve safety, capacity and mobility for current and future travel demands.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  Planning & Design
I-90, US-95 Interchange

The I-90 and US-95 Interchange is the first interchange to advance from the I-90 Corridor Study, with a design focused on expanding capacity, improving safety, and accommodating future traffic growth.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90 US-95
- Project Phase
  Planning & Design
I-90 Widening: SH-41 to US-95

The first project from the I-90 Corridor Study aims to improve safety and traffic volume capacity.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  In Construction
Rathdrum Prairie Area Transportation Study

The Rathdrum Prairie Area Transportation study is evaluating transportation alternatives to improve mobility and reduce congestion, guided by public input and analysis.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90 State Highway 41 State Highway 53 US-95
- Project Phase
  Study
I-90 Wolf Lodge to Cedars

A two-year project is underway to resurface an 8-mile stretch of I-90 over Fourth of July Pass, improving safety and ride quality while extending the life of the roadway.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  In Construction
I-90 Bridges near Cataldo

ITD is working on a full replacement of the eastbound and westbound I-90 bridges over the Coeur d'Alene River near Cataldo. Construction will take place in two phases from 2025 to 2026.
- Project Regions
  North Idaho
- Project Routes
  Interstate 90
- Project Phase
  In Construction