Constructing Duello Road Phase II Reconstruction

St. Charles County Highway Department is requesting sealed bids for Duello Road Phase II reconstruction in St. Charles County, Missouri, with bids due October 7, 2026 at 10:00 a.m. Central Time. The project is federally funded through the Surface Transportation Block Grant program and carries prevailing wage and Buy America compliance requirements, along with a 0 percent DBE participation goal.

The scope encompasses approximately 0.41 mile of reconstruction from the south side of the Peruque Creek bridge to approximately 300 feet south of Columbia Downs Drive, including grading, asphalt paving (977 tons of bituminous pavement mixture and 4,459 tons of base mixture), curb and gutter installation (295 linear feet), ADA-compliant sidewalk construction (1,155 square yards), drainage facilities, bridge approach transitions, vinyl rail and panel fencing, concrete approach sections, rock ditch checks, silt fence, seeding and mulching, and striping and signage. All labor must comply with prevailing wage rates established by the Missouri Department of Labor and Industrial Relations and federal Davis-Bacon rates, whichever is higher. Contractor and subcontractor employees must complete a 10-hour OSHA construction safety program within 60 days of beginning work. The contractor must perform at least 30 percent of the total original contract price with its own organization, and no second-tier subcontracting is permitted.

The project duration is 300 calendar days from the Notice to Proceed, expected on or about November 18, 2026. Liquidated damages are assessed at $300 plus $475 to $4,300 per day of overrun, depending on total contract amount. A bid guaranty of not less than 5 percent of the base bid amount is required, and performance and payment/materials bonds are required upon award. Bids remain valid for 60 days following opening. Prospective bidders must submit a Contractor Questionnaire or Prequalification Questionnaire no later than seven days prior to bid opening in accordance with MoDOT requirements. Bids will be publicly opened at the St. Charles County Administration Building, Room 115/116.