This solicitation is for a firm fixed price construction contract to complete upstream approach wall construction work at the Soo Lock Complex in Sault Ste. Marie, Michigan. The Detroit District of the US Army Corps of Engineers seeks to award a contract to accomplish the scope of work detailed in the attached solicitation documentation, with an intended start date within 30 days of award. The work requires heavy and civil engineering construction services (NAICS 237990) with no set-aside and a size standard of $39.5 million. Interested parties should monitor beta.SAM.gov for solicitation amendments and responses to industry questions. Proposals must be submitted electronically as detailed in the solicitation. The primary point of contact for inquiries is the contract specialist via the provided email and phone number.