Projects 3 |

SH-8 Traffic Study

ITD is studying the SH-8 corridor from Moscow to Troy in Latah County to improve traffic and identify future safety projects.
- Project Regions
  North-Central Idaho
- Project Routes
  State Highway 8 US-95
- Project Phase
  Planning & Design
US-20 Osborne & SH-32 Bitch Creek Bridges

Design work is underway on the US-20 Osborne Bridge and SH-32 Bitch Creek Bridge to improve safety and ensure mobility on these vital routes.
- Project Regions
  East Idaho
- Project Routes
  State Highway 32 US-20
- Project Phase
  Planning & Design
SH-75 Elkhorn Road to River Street

The Idaho Transportation Department (ITD) is constructing improvements on State Highway 75 (SH-75) between Elkhorn Road and River Street in Ketchum.
- Project Regions
  South-Central Idaho
- Project Routes
  Interstate 84 US-93
- Project Phase
  Planning & Design
US-93 Burnett Ditch and Kriley Gulch Bridges

Design work is underway on the Burnett Ditch Bridge near Mackay and Kriley Gulch Bridge near Salmon to improve safety and meet current standards.
- Project Regions
  East Idaho
- Project Routes
  US-93
- Project Phase
  Planning & Design
US-12: Valley View Drive to Kooskia Widening

This project will widen the paved roadway, install shoulder barrier and make safer geometric improvements to the roadway.
- Project Regions
  North-Central Idaho
- Project Routes
  US-12
- Project Phase
  Planning & Design
Clearwater Crossings

ITD is designing upgrades for two bridges across the Clearwater River: Spalding and Arrow Bridges to improve traffic flow and enhance safety.
- Project Regions
  North-Central Idaho
- Project Routes
  US-12 US-95
- Project Phase
  Planning & Design
US-95 Freeze Road to Beplate Passing Lane

A new passing lane north of Potlatch will provide safer passing opportunities for southbound drivers.
- Project Regions
  North-Central Idaho
- Project Routes
  US-95
- Project Phase
  Planning & Design
COMPLETE: US-95 Thorn Creek to Moscow

This expansion to four lanes on a new alignment is now complete, adding capacity and reducing travel times while significantly improving safety.
- Project Regions
  North-Central Idaho
- Project Routes
  US-95
- Project Phase
  Complete
I-15 US-20 Connector

An Environmental Impact Statement is now being completed that will allow ITD and cooperating agencies to greatly improve safety and mobility for I-15 traffic accessing US-20 in the Idaho Falls area.
- Project Regions
  East Idaho
- Project Routes
  Interstate 15 US-20
- Project Phase
  Planning & Design
US-26 Intersection Improvements at 45th & 55th

Plans to install traffic signal bridges at the intersections of 45th and 55th East and US-26 north of Idaho Falls will improve safety for travelers.
- Project Regions
  East Idaho
- Project Routes
  US-26
- Project Phase
  Planning & Design
US-20 Idaho Falls to Arco

Improvements are being planned for US-20 west of Idaho Falls to Arco. This important route leads to the Idaho National Laboratory, where more than 6,000 Idahoans are employed.
- Project Regions
  East Idaho
- Project Routes
  US-20
- Project Phase
  Planning & Design
US-26 & Hitt Road (25th East) Intersection

Improvements are in the works for the busy intersection of US-26 and Hitt Road in Idaho Falls. The road will be expanded up to five lanes as early as late 2026- 2027.
- Project Regions
  East Idaho
- Project Routes
  US-26
- Project Phase
  Planning & Design