Demolition, site work and new construction of a bridge / tunnel in Santa Ana, California. Conceptual plans call for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; and for site work for a bridge / tunnel.

The work includes preparing all necessary environmental documents, plans, specifications, and cost estimates for the construction of a new pedestrian bridge to replace an existing structure. The scope consists of bridge and footing design, including structural calculations that meet AASHTO and Caltrans requirements, ADA curb ramp designs, right-of-way engineering (mapping and legal descriptions for easements), electrical design for bridge lighting, construction details, necessary environmental impact studies, coordination with regulatory permitting agencies, and public outreach. Consultants are expected to identify potential areas of concern and propose methods to minimize construction durations and neighborhood impacts. The Consultant is responsible for reviewing the bridge assessment and inspection report, coordinating with utility companies and regulatory agencies, conducting record research, performing topographic survey, preparing conceptual bridge designs (3), bridge 3D modeling and visuals, addressing NPDES water quality requirements, obtaining environmental clearance documents and reports, conducting hydrology/hydraulic analyses and modeling, and performing geotechnical studies, reports, boring, and infiltration testing. Landscaping, irrigation plans, bridge lighting, electrical design, traffic signage, and public outreach are also included. Deliverables include milestone plan sets at 30%, 60%, 90%, and 100%, with all required certifications and digital files. The consultant will also provide support during bid advertisement, construction administration, and the preparation of record drawings/as-built plans. All work must comply with relevant City, State, and Caltrans standards and requirements. The city reserves the right to modify the scope as needed, and the consultant must maintain flexibility to meet project and City needs. Instructions to bidders include requirements for electronic and hardcopy proposal submissions, adherence to City and PlanetBids procedures, and compliance with all outlined City submittal protocols and communication requirements. Online Q&A Yes Q&A Deadline 02/17/2026 2:00 PM (PST)