This is a pre-solicitation notice for construction services to repair Inlet Lock 2 at the C&O Canal National Historical Park in Potomac, Maryland. The work involves replacing lock gates and a miter sill, repairing stone masonry, removing sediment, and repairing upstream berms. The period of performance is 180 days from the Notice to Proceed. The requirement is a 100% set-aside for Small Businesses under NAICS code 237990. A firm-fixed-price contract is anticipated, and the solicitation is expected to be posted after May 1, 2026.