Seward Highway MP 105-107 Windy Corner

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Project Overview

Welcome to the website for the proposed Seward Highway Milepost 105-107 Windy Corner project. The Alaska Department of Transportation and Public Facilities (DOT&PF) will use this site to keep you informed about project development. Please refer to this site for updates on the project, documents, announcements of public meetings, and to make a comment or suggestion.

The objective of the project is to address traffic safety concerns on the Seward Highway by realigning and dividing the highway and the railroad in the vicinity of Windy Corner. This road segment has a historically high crash rate and does not meet current design standards. The segment is proposed to become a two-lane divided highway. The new alignment will create space for new roadside recreational facilities and wildlife viewing areas, including parking and walkways, with auxiliary lanes for accelerating, decelerating and turning traffic. See the figures below for conceptual changes.


Project Status

The project design and environmental documentation efforts are on-going. Recent significant accomplishments include:

  • Work underway on Environmental Assessment (EA) following concurrence from Federal Highway Administration that the Categorical Exclusion should be elevated. The EA will include both 4(f) and 6(f) analyses.
  • An independent analysis from Granite Construction of material source and transportation costs. A summary memorandum and a copy of the independent analysis are available for public review here.
  • The Land and Water Conservation Act Section 6(f) Environmental Assessment was released for public comment in January 2017 and revisions/approval is underway.
  • Completion of the Municipality of Anchorage (MOA) Context Sensitive Solutions review with appearances in front of the Planning and Zoning and Urban Design Commissions.
  • Initiation of a MOA Conditional Use Permit for the proposed material site.


Check this website for public input opportunities and/or request the team add you to our mailing list.


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South Side Recreational/Parking Area

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North Side Recreational/Parking Area

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Material Sites

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Challenges include changes to the visual experience for motorized and non-motorized traffic; impacts on the hydrology and marine mammal/fish habitat; and effects on Chugach State Park.

The proposed project is being completed using a combination of state and federal funds and is being developed in accordance with Federal Highway Administration (FHWA) guidelines. DOT&PF is conducting design development with input from the public as well as local, state and federal agencies, including the Alaska Railroad Corporation, Alaska Departments of Natural Resources and Fish and Game, Chugach State Park, National Parks Service, U.S. Army Corps of Engineers, Anchorage Fire Department, and others.


Windy Corner in the news:

Balancing scenery and safety on Seward Highway takes mountains of money, Dermot Cole; Alaska Dispatch News, July 18, 2017

Alaska’s scenic Seward Highway doesn’t need another quarry ruining the view, Rick Sinnott; Opinion, Alaska Dispatch News, May 23, 2016

Q&A with the Seward Highway “Windy Corner” project manager; Turnagain Times, April 21, 2016

Seward Highway expansion will increase traffic, speed and safety risk, Paul Twardock, Alaska Dispatch News, December 30, 2015

Video: Tour of Seward Highway Project, Alaska Dispatch News, September 19, 2015 (Updated May 31, 2016)

State tried to balance safety, scenery in big Seward Highway project, Nathaniel Herz, Alaska Dispatch News, September 19, 2015

Seward Highway project must preserve beauty of Turnagain Arm, Joan Daniels, Opinion, Anchorage Dispatch News, May 29, 2015

Windy Corner project moving forward, by Marc Donadieu, Turnagain Times, May 1, 2014

Governor announces highway safety improvements, Turnagain Times, February 21, 2013

Most dangerous Alaska roads, including Seward Highway to see upgrades, Casey Grove, Alaska Dispatch News, February 14, 2013

Newly appointed DOT Czar seeks to make Seward Highway safer, Julie St. Louis, Turnagain Times, February 7, 2013