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This document provides details for an industry day special notice regarding the Kentucky Lock Downstream Lock Monolith construction project. The U.S. Army Corps of Engineers Nashville District will conduct an industry conference on March 3, 2020 to present 80% design plans and specifications, proposed option scopes and schedules, and a construction concept for feedback. The conference aims to clarify contract requirements and assess constructability for the base contract and multiple options. The major project components include limited rock excavation, over 400,000 cubic yards of concrete placement, embeds and gate installations, bridge construction, lock wall grouting, and soil backfilling. The estimated 56-month contract value is between $250-500 million. Interested parties can register for the conference and scheduled site visit. Prime contractors may also request individual feedback sessions on the draft solicitation documents. Comments on the materials are requested by March 31, 2020 prior to finalization.