The NYC Department of Environmental Protection is seeking qualified contractors to construct Package 3 of the Combined‑Sewage‑Overflow (CSO) Facilities for the Gowanus Canal. The scope includes building the CSO superstructure, reconstructing or abandoning impacted conveyances, installing mechanical and electrical equipment, constructing public amenities, and integrating a range of specialized systems such as bar‑screens, grit classifiers, flushing gates, HVAC, and security infrastructure. Bids are submitted electronically via PASSPort, with a pre‑bid virtual conference and a mandatory virtual site walkthrough for plan holders. The anticipated contract period runs from February 2027 through September 2030, with an estimated total procurement value of roughly $268 million.
• Major civil‑engineering work: concrete, steel, masonry, and underground utilities for CSO treatment and storage facilities.
• Comprehensive mechanical/electrical installation: pumps, fans, HVAC, power units, control systems, and odor‑control equipment.
• Required compliance: Prevailing‑wage, DBE participation, MS4 permit adherence, extensive safety and environmental standards.
• Procurement method: Competitive sealed‑bid (IFB) through PASSPort; one bid opening on 11/17/2026.
• Key dates: Release 10/1/2026, Pre‑bid conference 10/7/2026, Site visit 10/7/2026, Questions due 10/14/2026, Bid due 11/17/2026.