The National Park Service plans to award a firm-fixed price contract for the Green Tree Tavern Retaining Wall Reconstruction at Ste. Genevieve National Historical Park in Sainte Genevieve, Missouri. The project involves carefully dismantling and rebuilding a historic mortared limestone retaining wall, approximately 90 feet long, by hand to correct an outward lean. The project magnitude is between $100,000 and $250,000, and performance is expected to begin in Late Summer 2026. This opportunity is set aside 100% for Total Small Businesses under NAICS code 238190. The official solicitation will be issued and available in June 2026.