Idaho Transportation Department

I-84 Five Mile Bridge

Project Description

I-84 , Five Mile Bridge, Boise
Key No. 09493
ITD Project BR-84-1(069)48

The Idaho Transportation Department (ITD) will rehabilitate and resurface the Five Mile Bridge over Interstate 84. The project will rehabilitate the bridge deck, repair deteriorated pavement, extend the life of the structure and provide a smoother ride for motorists.

Work will be limited to the resurfacing project; no additional improvements (such as additional travel lanes, bike lanes or sidewalks) are planned as part of this project. Improvements of that magnitude would require total replacement of the bridge structure, and funding for such an extensive project is not currently available.

Project Background

The Five Mile Bridge, built in 1966, carries more than 18,000 vehicles a day. By 2031, average daily traffic is projected to exceed 19,250. The bridge is part of a heavily-traveled north-south corridor in west Boise, adjacent to residential, retail and business centers, making it an important transportation link in the area.

Proposed Construction Schedule

For the following reasons, ITD is recommending an expedited construction scheduled that would include the temporary closure of the bridge:

Construction is cut from 40 days to 25 days, allowing the project to be completed two weeks earlier than if the bridge remains open.
The "get in, get out" repairs mean a full flow of traffic is restored sooner.
The finished roadway surface is constructed in one efficient process.
A cost savings is expected. (If the bridge is closed standard construction costs, such as traffic control measures and temporary traffic signals, and the need for flaggers, are automatically eliminated.)

What do you think?

Are there other issues that ITD should consider in determining whether to close the bridge during construction?

ITD is interested in hearing from residents, businesses and commuters about which option is preferred.

Public Input

Submit your comments online or by mail:

comments@itd.idaho.gov
Public Involvement Coordinator
I-84 Five Mile Bridge Project
Idaho Transportation Dept.
P.O. Box 7129
Boise, ID 83707-1129
Visit with a project representative or request an informational presentation to your neighborhood group or staff meeting.
Talk with the ITD Public Involvement Coordinator:
(208) 334-4444
(208) 334-8918 (TDD)

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.