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The contract pertains to bridge maintenance for the Arthur Ditomasso Bridge, designated as F-04-019, located in Fitchburg, Massachusetts, over the Boston & Maine Railroad and the Nashua River. The work involves furnishing and installing a MassDOT Type II Protective Screen safety fence, along with related tasks such as repairing or replacing existing bridge handrails, parapets, and sidewalks; cleaning and painting 10 parapet-mounted light posts and other bridge light fixtures; replacing tower doors and hardware; sealing joints at the tower-bridge interface; and applying concrete protective sealers to sidewalks and parapets. A field survey of the bridge is required to support shop drawing development and precise installation of the safety fence. The project must be completed within 270 calendar days after issuance of the Notice to Proceed, with winter extensions applicable if the completion date falls between December 1 and March 15. Work must comply with the 2026 STANDARD SPECIFICATIONS for HIGHWAYS and BRIDGES, as modified by Supplemental Specifications that take precedence. All materials and components must be factory-tested prior to delivery, and specific pay items are measured by foot, each, or square foot as defined in the contract. The contract is subject to stringent compliance requirements under Massachusetts and federal regulations. Bidders must be pre-qualified in the BRIDGE-CONSTRUCTION category by MassDOT to be eligible for award. Attainment of M/WBE or SDVOBE participation goals, or a documented good faith effort toward those goals, is a mandatory prerequisite for contract award. The contractor must submit performance and payment bonds, workers’ compensation affidavits, and liability insurance documents meeting Massachusetts requirements, including an AM Best rating of A- IX, and must list MassDOT and applicable railroads as additional insureds. Railroad-specific liability coverage is required for Boston and Maine Corporation and Springfield Terminal Railway Co. All diesel equipment over 50 horsepower must be equipped with emission control devices per the Mass Clean Diesel Program, and the contractor must certify compliance with state and federal labor laws, including prohibitions against using undocumented workers under Executive Order 481, adherence to prevailing wage rates, and EEO reporting obligations if employing 50 or more workers. The contractor must label and contain stockpiles according to strict environmental protocols, use approved shipping documentation for soil movement, and maintain records for six years after final payment. Proposals must be submitted electronically via www.bidx.com prior to the August 11, 20