DOT&PF Notice to Begin Engineering & Environmental Studies and Floodplain Encroachment: Juneau Back Loop Road: Mendenhall Loop Road to Glacier Highway Resurface

Project # SFHWY00262 The Alaska Department of Transportation and Public Facilities (DOT&PF) is proposing to resurface Back Loop Road and Mendenhall Loop Road to Glacier Highway in Juneau, Alaska. The purpose of this project is to resurface the road surface to prolong the life of the roadway and increase the quality of the drive surface from its current condition, as the pavement is nearing the end of its lifecycle. Certain locations are experiencing rutting and delamination as well. Improvements to the road and other amenities would allow safe and continued use for the traveling public and its users. DOT&PF is proposing the following activities: • Resurface Back Loop Road from Mendenhall Loop Road to Glacier Highway • Upgrade drainage treatments, signage, guardrail, striping, and non-motorized facilities to current standards • Address structural needs for the road and bridges along Back Loop Road The project is anticipated to begin construction in late 2027 and continue through two construction seasons. Temporary traffic disruptions and delays are anticipated during the construction of this project, and such delays would be addressed in a traffic control plan as the project progresses. Part of the project corridor is along a regulatory floodway (Zone AA). With the proposed activities, the encroachments are anticipated to be minor, with no net changes to the base flood elevation, thus they would not result in significant encroachments. Additionally, no longitudinal encroachments are anticipated. The environmental review, consultation, and other actions required by applicable Federal environmental laws for this project are being, or have been, carried out by DOT&PF pursuant to 23 U.S.C. 327 and a Memorandum of Understanding dated April 13, 2023, and executed by FHWA and DOT&PF. Development of this proposed project would follow a process required by the National Environmental Policy Act (NEPA). Based on project location and scope of work, the environmental document is anticipated to be a Categorical Exclusion (CE). Possible affected resources include wetlands, waters of the U.S., essential fish habitat, eagles, air quality, Section 4(f) properties, invasive plants, and cultural or historic properties. The proposed project would comply with all applicable authorities including: • Bald and Golden Eagle Protection Act • Clean Air and Clean Water Acts • EO-11988 (Floodplain Management) • Magnuson-Stevens Fishery Conservation Management Act • National Historic Preservation Act - Section 106 • U.S. Fish and Wildlife Coordination Act • Americans with Disabilities Act • Archaeological Resources Protection Act • EO-11990 (Protection of Wetlands) • EO-13112 (Invasive Species) • Section 4(f) of the U.S. Department of Transportation Act • Migratory Bird Treaty Act • EO-13186 (Responsibilities of Federal Agencies to Protect Migratory Birds) • Anadromous Fish Conservation Act DOT&PF is soliciting comments on the proposed project. Your comments would help us evaluate potential environmental, social, and economic impacts of this project, as well as impacts to historic and cultural resources. Please submit your written comments to: Whitney Hamilton, Environmental Impact Analyst DOT&PF Southcoast Region P.O. Box 112506 Juneau, AK 99811-2506 Phone: (907) 465-2490 Email: whitney.hamilton@alaska.gov To ensure that all possible factors are considered, please provide comments via email or mailing address by August 15, 2026. It is the policy of the Alaska Department of Transportation and Public Facilities (DOT&PF) that no person shall be excluded from participation in, or be denied benefits of, any and all programs or activities we provide based on race, religion, color, gender, age, marital status, ability, or national origin, regardless of the funding source including Federal Transit Administration (FTA), Federal Aviation Administration (FAA), Federal Highway Administration (FHWA) and State of Alaska funds. DOT&PF complies with Title II of the Americans with Disabilities Act of 1990. If you or someone you represent requires special accommodations in order to respond to this public notice, please call or email the project coordinator listed above, or call Alaska Relay at 711, or call (800) 770-8973 for TTY, (800) 770-8255 for voice, (800) 770-3919 for ASCII, (866) 355-6198 for STS. Ask the communications assistant to call the project coordinator listed above so arrangements can be made to assist you. Leave a Comment Attachments, History, Details Attachments None Revision History Created 7/16/2026 1:39:13 PM by asaggiomo

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• Contact
  whitney.hamilton@alaska.gov(907) 465-2490