NOTICE OF INTENT TO BEGIN ENGINEERING AND ENVIRONMENTAL STUDIES AND FLOODPLAIN ENCROACHMENT Project Title: SEWARD HIGHWAY AND TUDOR ROAD INTERCHANGE RECONSTRUCTION Project No.: CFHWY00909/0A31067 The Alaska Department of Transportation and Public Facilities (DOT&PF) has assumed the responsibilities of the Federal Highway Administration under 23 U.S.C. 327 and is soliciting comments and information on a proposed project to reconstruct the Seward Highway and Tudor Road interchange to replace the existing bridge, ease congestion, and improve safety and east/west connectivity for all users. The project would update the interchange design to meet current and projected traffic volumes, increase vertical clearance to meet current minimum height requirements, improve non-motorized user navigation, and upgrade the level of service at intersections within the project limits. The proposed work may include the following: * Reconstruct ramps and bridge over Seward Highway * Construct new frontage roads, including new bridges for ramps * Rehabilitate and replace existing roadways, sidewalks, shared-use pathways, pavement and subgrade * Construct new Americans with Disability Act-compliant pedestrian facilities * Improve drainage (e.g., upgrade or rehabilitate culverts, storm drain facilities, ditches) * Relocate utilities * Change access control for Seward Highway, Tudor Road, and other connecting roadways * Clear and grub vegetation * Improve, replace, or install roadside hardware, including traffic signals, illumination, signage, striping, automated traffic recorders, etc. * Install landscaping, retaining wall(s), and noise barriers * Improve adjacent intersections * Acquire right-of-way to accommodate improvements The proposed project would encroach into the base (100-year) floodplain of Fish Creek (FEMA FIRM Panel 0200050761D). Potential impacts to the base floodplain may include an encroachment during culvert installation; however, no net changes to the base flood elevation or significant encroachments are expected. This proposed project will comply with Section 106 of the National Historic Preservation Act; Executive Orders: 11990 (Wetlands Protection), 11988 (Floodplain Protection), the Clean Air Act, Clean Water Act, Fish and Wildlife Coordination Act, and U.S. DOT Act Section 4(f). Construction for the proposed project is anticipated to begin in Summer 2030. To ensure that all possible factors are considered, please provide written comments to the following address by November 28, 2025. Heidi Zimmer Regional Environmental Manager DOT&PF Preliminary Design & Environmental P.O. Box 196900 Anchorage, Alaska 99519-6900 Heidi.Zimmer@Alaska.gov If you have any questions or require additional information, please contact Galen Jones, P.E., Project Manager, at 907-269-0550 or galen.jones@alaska.gov 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. It is the policy of the Alaska Department of Transportation & 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, Federal Aviation Administration, Federal Highway Administration and State of Alaska Funds. The DOT&PF complies with Title II of the Americans with Disabilities Act of 1990. Individuals with a hearing impairment can contact DOT&PF at our Telephone Device for the Deaf (TDD) at (907) 269-0473. Pub: Oct. 29, 2025