Third Street Grade Separation At Bnsf Railroad

The City of Riverside is soliciting bids for the construction of a railroad grade separation underpass at Third Street and the BNSF Railroad tracks in Riverside, California, with a response deadline of August 19, 2026. The project encompasses the full scope of building a quadruple-track concrete bridge, constructing retaining walls, and installing a new storm drain pump station, along with approximately 1,340 feet of excavation and grading for Third Street, new roadway pavement, and reconfiguration of local streets. Extensive utility relocation is required, including the Riverside Canal, and demolition of two existing buildings. The contract includes landscaping, irrigation, traffic signals, signing, and striping, with all work subject to compliance with ANSI, ASTM, IEEE, and NEC standards. The estimated contract value ranges from $7.07 million to $8 million, with detailed line items covering structural concrete, precast girders, CIDH piles, storm drains, pump stations, and traffic control. Performance is scheduled for 400 working days following the Notice to Proceed, and the place of performance is the designated site in Riverside, CA 92507. Contractors must adhere to stringent safety and coordination requirements, including full compliance with BNSF Railroad Maintenance of Way and Employee Safety Rules, as well as technical specifications for work conducted within BNSF right-of-way. Marking and labeling of materials, particularly reinforcing steel and galvanized components, must follow specific protocols using black paint stenciling with a minimum 2-inch letter height and include mark numbers, manufacture date, lifting weight, bridge number, and fabricating plant ID. Galvanizing repairs must comply with MIL-DOD-P-21035A, and embedded items must meet ASTM A153. All submittals including shop drawings, product data, and samples must follow strict procedures outlined in Section 01 33 00, and the contract enforces a hierarchy of precedence with Special Conditions above Plans and Specifications. Debris removal and site cleanup are the Contractor’s sole responsibility without additional compensation, and records such as certified payrolls and subcontract agreements must be retained for three years post-completion. Proposals must be submitted electronically via the PlanetBids Vendor Portal in PDF format, with individual files not exceeding 20 MB, and no physical submissions or alternative formats are permitted. The City of Riverside is the sole contracting agency, and while no formal evaluation factors, award basis, or specific contracting officer roles are detailed