This is a Sources Sought Notice for the Lowell Creek Tunnel Refurbishment in Seward, Alaska, intended for market research only, not a solicitation for bids. The work involves repairing a 2,100-foot tunnel through Bear Mountain, including concrete and rail repairs, with an estimated contract value between $10,000,000 and $25,000,000. The contract is expected to be awarded in December 2026, and performance will occur in Seward, Alaska, likely during winter months. Interested firms must submit a capabilities package by 2:00 PM Alaska Time on June 30, 2026, to the U.S. Army Corps of Engineers. The project requires compliance with Davis Bacon wage rates, 100% performance and payment bonds, and SAM registration.