Alley Reconstruction from 4th Street to 6th Street between Maple Street and Green Street

City of Yankton is seeking a contractor to reconstruct the Maple‑Green Alley (4th St to 6th St) by removing existing asphalt and concrete, installing new 6‑inch Portland‑Cement‑Concrete pavement, and completing related site work. The scope includes demolition, excavation, base‑course placement, geotextile installation, utility coordination, traffic‑control provision, erosion‑control measures, and minor landscaping. Bidders must provide performance and payment bonds equal to 100 % of the contract price, and a 5 % bid guarantee (cash or 10 % bond). The contract is awarded to the lowest responsive bid, with a completion deadline of July 17 2026. • Demolition of existing asphalt (≈ 762 SY) and concrete (≈ 105 SY) and removal of excavated material. • Installation of new 6‑in. PCC pavement, aggregate base course, geotextile fabric, steel tie‑bars, detectable warning panels, and manhole adjustments. • Full traffic‑control, erosion‑control (SWPPP), utility locates (One‑Call), and minor landscaping (seeding, mulching, fertilizing). • Bonds, retainage, and liquidated‑damage provisions; contractor must supply portable toilets at no cost to the City.