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Idaho 75, Elkhorn Road to River Street

The Idaho Transportation Department is developing plans to improve capacity and safety on Idaho 75 between Elkhorn Road and River Street in Ketchum.

Idaho 75 is the primary north-south highway in the Wood River Valley serving the cities of Bellevue, Hailey, Ketchum, and Sun Valley in Blaine County.

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Idaho 75 Project Includes:

ITD will re-evaluate the project identified in the 2008 Record of Decision (ROD)/Environmental Impact Statement (EIS) to determine if corridor conditions or regulatory policies have changed that would affect the design of the project. Work will include:
-Updating traffic projections through 2047 (design year).
-Evaluating current corridor conditions, regulatory policies and the 2008 concept design.
-Developing preliminary design plans for the roadway and Trail Creek Bridge.
-Completing the re-evaluation of the ROD to determine how the proposed designs would affect the human and natural environment along the corridor.
-Completing final design plans for construction.

Public Involvement

This project is part of a vision for improving the Idaho 75 corridor in the Wood River Valley. Public involvement is important to ITD and the success of the project. ITD will reach out to the public for input on the proposed improvements throughout the project. Opportunities for participation include community working groups, public meetings and stakeholder interviews.

2019 –2020
Collect field data and complete technical studies. Continue environmental review. Evaluate/confirm 2008 concept design. Identify proposed improvements. Public involvement.
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2020 –2021
Complete environmental review. Prepare preliminary design plans. Public involvement.
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2022
Prepare final design plans. Public involvement. Finalize environmental review and proposed improvements.
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2023
Right-of-way acquisition (if needed). Acquire project permits.
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2025
Begin construction.
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Downloads & Resources

Project Fact SheetAsset 4
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