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ITD Projects South-Central Idaho Shoshone North, Idaho 75 Project

Shoshone North, Idaho 75 Project

Project Facts
Key Number: 7699
Project Number: STP-2390(131)

The Idaho Transportation Department (ITD) is proposing a major widening and re-alignment of Idaho75 from the city of Shoshone to Thorn Creek Road (mileposts 74-82).

Project Background
In the late 1990s, ITD considered improvements to Idaho 75 north of Shoshone to Timmerman Hill to increase traffic capacity and improve safety. Engineers determined that only the first eight miles of roadway north of Shoshone needed significant improvements. The remaining 20 miles are adequate to safely handle existing traffic.

Reduced funding will extend the planning and construction schedule into multiple phases. The first phase, with construction expected to begin in 2012, will build new bridges and one lane in each direction through the proposed corridor. Funding will determine scheduling of subsequent phases which will be a four-lane divided roadway with turn bays and additional safety features. Right of way for entire build out has been acquired.

Project Description

When this project is complete, the project on Idaho 75 from Shoshone to near Mammoth Cave (milepost 74-82) will:

  • Construct 2 lanes to the east of the existing roadway including five-foot shoulders to improve safety.
  • Construct new bridges at Milner-Gooding Canal, Big Wood River and North Gooding Canal.
  • Add a Port of Entry pullout at milepost 76.

Construction is expected to begin in summer 2012 with bridge construction to take place during the winter of 2012-13. The existing roadway will remain open to traffic throughout much of the construction project and will be demolished following completion of the new road.

The construction is expected to last about a year.

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District 4 Public Information
Nathan Jerke

Project Manager – Justin Price

Compliance with Title VI of the Civil Rights Act
The Idaho Transportation Department (ITD) is committed to compliance with Title VI of the Civil Rights Act of 1964 and all related regulations and directives. ITD assures that no person shall on the grounds of race, color, national origin, gender, age, or disability be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any ITD service, program, or activity. The department also assures that every effort will be made to prevent discrimination through the impacts of its programs, policies, and activities on minority and low-income populations. In addition, the department will take reasonable steps to provide meaningful access to services for persons with Limited English Proficiency.

ITD Public Involvement
P.O. Box 7129
Boise, ID 83707-1129
Phone: (208) 334-8119
Fax: (208) 334-8563
TTY/TDD Users: Dial 711 or
(800) 377-3529 to use Idaho Relay System

Page Last Modified: 4/5/2012 7:51:18 AM

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Idaho Transportation Department
3311 W. State Street P.O. Box 7129
Boise, ID 83707-1129
(208) 334-8000