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Project Updates

The Honoapiilani Highway Improvements project has continued to progress. The draft Environmental Impact Statement (DEIS) was published earlier this year in January. The project team has incorporated all of the input provided into the Final Environmental Impact Statement (FEIS).

Thank you to everyone who participated in the public hearings and who provided comments on the DEIS. All comments are included in the FEIS, along with responses.

View Project Documents

FEIS Publication

The DEIS was prepared as a joint document, to meet State and Federal statutes and requirements. Two Final EIS documents:

Federal Final EISpublished in the Federal Register along with the Federal Record of Decision (ROD)

State Final EISpublished in the Environmental Notice (end of September)

View FEIS Document

View Federal FEIS, published in the Federal Register
(Coming Soon)

View Federal FEIS, published in The Environmental Notice
(Coming Soon)

Project Overview

The scenic coastal Honoapiʻilani Highway (State Route No. 30) is a single two-lane highway that currently serves as the primary access route to and from West Maui.

It is part of the island’s belt road system which operates as a two-lane principal arterial on the National Highway System (NHS) and Freight Network System (FNS).

The undivided highway provides two 12-foot travel lanes with 4-foot to 8-foot shoulders. Most of the highway terrain is relatively flat, lying close to mean sea level.

Learn More & View Documents

Project Goals

Image of damage road

Project Purpose

The Primary Purpose of this project is to provide a reliable transportation facility in West Maui and improve Honoapiʻilani Highway’s resilience by reducing the highway’s vulnerability to coastal hazards.

Objectives:

  • Provide Regional Transportation System Linkages that Support the Safe Movement of People and Goods
  • Conform with Regional Land Use and Transportation Plans
Picture of roadway with ocean and beach on the left

Project Need

As a coastal highway, Honoapiʻilani Highway is vulnerable to:

  • sea level rise
  • passive flooding
  • annual high wave flooding
  • coastal erosion

As delineated by the Hawaii Climate Change Mitigation and Adaptation Commission (HCCC)’s Sea Level Rise Exposure Area (SLR-XA).

Submit A Comment

Please use the form to submit a general question or to comment on the Environmental Process.

If you'd like to mail your comment, you're welcome to use this form.

Thank you for being a part of the process!

* (required)

To request language interpretation, an auxiliary aid, or special services (e.g. sign language interpreter, materials in alternate format), please contact Mr. Ken Tatsuguchi: ken.tatsuguchi@hawaii.gov.
Please submit requests one week in advance of the meeting or event.

Timeline

  • January 2023
    • Launch of environmental assessment process, which includes NOI and EISPN.
    • Start of Environmental Planning Process (Continues through 2025)
  • Winter 2024 - 2025
    • Draft Environmental Impact Statement Published (January 2025)
    • Public Hearing (January / February 2025)
    • 45 Day Comment Process (January - February 2025)
  • Summer 2025
    • Final Environmental Impact Statement Published
  • Fall 2025
    • Preconstruction
  • 2027
    • Construction Begins
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