0013Q Corridor-Ashaway_DOQ Index Page_4_Addendum-2.pdf

This is an addendum document for the Corridor-Ashaway bridge replacement project issued by the Rhode Island Department of Transportation (RIDOT) for R.I. Contract No. 2026-CB-019 under FAP No. STP3334001. The project encompasses the replacement of three bridges: Ashaway River Bridge No. 005051, Potter Hill Culvert No. 005151, and Potter Hill Bridge No. 005251. The scope of work includes installation of temporary and new gas mains for each bridge, adjustment of curb stops and utility boxes to grade (36 units), temporary deck protective shielding (7,900 square feet), repairs to structure concrete masonry patching (9 cubic feet), structural concrete crack repair (60 linear feet), pre and post-construction condition surveys, mobilization and demobilization of micropile equipment, installation of 62 micropiles with verification and proof load tests, and steel beam guardrail installation (680 linear feet). The project is federally funded with 80% FHWA funding and 20% state funding. Phased completion deadlines are 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 were due August 28, 2026 at 1:00 p.m. EDT, with vendor questions due August 19, 2026 at 12:00 p.m. EDT.

All work is subject to Davis-Bacon prevailing wage requirements effective May 18, 2026, and Buy America compliance mandates requiring domestic content of 55 percent for manufactured products. Liquidated damages are assessed at $3,500 per day for phase completions and $1,950 per day for substantial completion milestones. Lump sum item breakdowns are due within 70 days of apparent low bidder notification. Prefabricated bridge units require detailed shop drawings, welding procedures, and quality documentation with specified placement tolerances. A 5% bid bond and 100% performance bond are required. Required insurance includes $1,000,000 general liability and workers' compensation coverage. A 0.33% contract administrative fee applies to the award. All proposals must be submitted electronically through Ocean State Procures.