STL District, City of O'Fallon, construction of a new multi-lane roundabout. Additional improvements include sidewalks, a shared-use path, lighting, signing, pavement marking, etc

The City of O’Fallon is seeking a qualified contractor to design and construct a new multi‑lane roundabout at the intersection of Tom Ginnever Avenue and North Cool Springs Road, together with comprehensive ancillary improvements. The contract will be awarded to the lowest responsive and responsible bidder, and the bid must be submitted in sealed paper form by the deadline. The scope encompasses all civil works, utility relocations, lighting, signage, pavement markings, sidewalks, a shared‑use path, retaining walls, and storm‑sewer upgrades. The project requires adherence to Missouri’s prevailing‑wage rules, a 5 % bid bond, and completion of a 10‑hour OSHA safety program within 60 days of commencement. No second‑tier subcontracting is permitted. • Construction of a multi‑lane roundabout with associated earthwork, grading, and retaining walls. • Installation of sidewalks, a shared‑use path, street lighting, traffic signs, and pavement markings. • Upgrades to the storm‑sewer system and necessary utility relocations. • Mandatory compliance with MoDOT Qualified Contractor List, prevailing‑wage statutes, and OSHA safety training.