0013Q Corridor-Ashaway_DOQ Item 201.0432_Addendum-2.pdf

This is an addendum document related to the Corridor-Ashaway bridge replacement project managed by the Rhode Island Department of Transportation. The project encompasses the replacement of three bridges in Providence County: Bridge No. 005051 (butted box beam), Bridge No. 005151 (concrete arch), and Bridge No. 005251 (butted box beam), all spanning bodies of water. The scope of work includes bridge demolition, foundation work with piles and micropile systems, prefabricated structural steel tub girders, ultra-high-performance concrete closure pours, abutment and pier construction, deck systems, utility relocations including gas mains, drainage structures, stormwater treatment systems, erosion control measures, ADA-compliant accessibility improvements, guardrails, landscaping, and asphalt and concrete placement. Phased completion deadlines include November 10, 2027 for the Ashaway River Bridge and August 14, 2028 for the Potter Hill Bridge, with substantial completion required by October 23, 2028. Proposals are due August 28, 2026 at 1:00 p.m. EDT, with vendor questions due August 19, 2026 at 12:00 p.m. EDT, and submissions must be made electronically through Ocean State Procures.

The project is federally funded under the Federal-Aid Highway program with 80% FHWA funding and 20% state funding (FAP Number STP-3334(001)). All work is subject to Davis-Bacon prevailing wage requirements effective May 18, 2026, and Buy America compliance mandates that 55 percent of manufactured products contain domestic content with a minimal use threshold of $2,500 or 0.1 percent of contract value for foreign materials. Liquidated damages are assessed at $3,500 per day for phase completions and $1,950 per day for substantial completion milestones. Prefabricated bridge units require detailed shop drawings, welding procedures, and quality documentation with strict placement tolerances (1/4-inch for width and 1/8-inch for bearing elevation). Lump sum item breakdowns are due within 70 days of apparent low bidder notification. Bidders must provide a 5% bid bond and 100% performance bond, with required insurance including $1,000,000 general liability and workers' compensation coverage. A 0.33% contract administrative fee applies to the project.