Description
This solicitation covers the comprehensive preservation, rehabilitation, and partial replacement of the I‑93 bridge over the Merrimack River in Andover, MA (Bridge A‑09‑022, M‑17‑015), valued at roughly $105 million. The work includes full‑deck replacement using precast panels, structural steel repairs, scour counter‑measure installations, rip‑rap replacement, temporary traffic‑control measures for up to 26 weekend crossovers, extensive environmental compliance (Section 404, Section 401, endangered‑species protections), and a detailed incentive/penalty schedule tied to early completion and traffic‑return timing. Bidders must be pre‑qualified in the Bridge‑Construction category, possess a valid MassDOT vendor code, obtain a Digital ID on www.bidx.com at least 14 days before the bid opening, and meet minority‑ and women‑participation goals. The contract features multiple addenda that revise drawings, adjust steel price‑adjustment provisions, and provide detailed specifications for temporary barriers, deep haunches, and environmental permits.