This market survey seeks to determine interest from small businesses for a future contract involving elevator maintenance and inspection at multiple lock and dam sites across Kentucky, Indiana, and Illinois. The work includes quarterly routine maintenance, annual no-load and full-load inspections, and on-call emergency repairs, all in accordance with ANSI standards. The contract duration is estimated at 1825 calendar days, and the NAICS code is 561210 with a size standard of $47,000,000. Interested firms must respond via the Market Survey Response Form by Monday, 11 May 2026, NLT 1:00 PM Eastern Time, providing details on small business status, UEI, and past experience on similar projects. This is not a request for proposal, and responses will inform the government's acquisition decisions.