Description
This MassDOT solicitation seeks a contractor to design, fabricate, deliver, and erect concrete noise‑barrier systems along the I‑90 corridor between Market and Franklin Streets in Boston. The scope includes trench excavation, drilled‑shaft foundations, prefabricated modular gravity walls, utility relocations, tree protection, environmental compliance (including ESA species considerations), and associated civil work such as drainage, landscaping, and traffic‑control measures. The contract value is estimated at $19.527 million, with a required 5 % bid bond and strict compliance with prevailing‑wage, safety, and environmental regulations.
• Core work: design‑build installation of two concrete noise‑barrier segments (~1,968 ft & ~1,088 ft) with associated foundations and retaining walls.
• Ancillary tasks: utility duct‑bank relocation, tree protection, storm‑water NPDES plan, noise‑control measures, and environmental health & safety program.
• Procurement requirements: MassDOT vendor code, Digital ID via BIDX, pre‑qualification (R109), 5 % bid guarantee, compliance with Small Business Purchasing Program, and adherence to numerous technical specifications and labor‑participation goals.