Unofficial Notice of Invitation to Bid (NIB)

San Diego Association of Governments (SANDAG) is seeking bids from qualified and interested contractors for the following project titled, Old Town to Downtown Rail & Multimodal Corridor Study, identified under Solicitation ID: SOL1501159. Work is to be performed near 1011 Union St Suite 400, San Diego, CA 92101, USA in San Diego County.

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General Project Description

The "Old Town to Downtown Rail & Multimodal Corridor Study" aims to evaluate planned projects and identify new opportunities along the Old Town to Downtown Corridor in San Diego. The core objective is to improve safety and connectivity for pedestrians, cyclists, public transit, and local traffic along Pacific Highway and the LOSSAN Corridor. This involves developing and assessing multimodal mobility solutions, enhancing transit priority, and analyzing grade separation opportunities at eleven at-grade rail crossings. The study will prepare detailed work plans, current conditions reports, multimodal corridor alternatives, conceptual designs, cost estimates, and final project study reports. A significant component involves stakeholder and public outreach to gather input and disseminate recommendations for integrated road and rail systems designed for efficient multimodal community connection and increased rail transit frequency.

General Bid Items

Quantity: 1 Unit: LS Work Item: Detailed Project Work Plan, Budget, and Schedule (Task 1.1 & 2.1)
Quantity: Ongoing Unit: LS Work Item: Project Administration Meetings with SANDAG Staff (Task 1.2 & 2.2)
Quantity: As needed Unit: LS Work Item: Project Development Team (PDT) Meetings and Meeting Materials (agendas, minutes) (Task 1.2 & 2.2)

NAICS Classification

NAICS 541990 – All Other Professional, Scientific, and Technical Services (General study, planning, and public relations support for comprehensive transportation projects), NAICS 541611 – Administrative Management and General Management Consulting Services (Project administration, management consulting for complex planning studies, work plan development, and alternative assessments), NAICS 541330 – Engineering Services (Developing conceptual designs, traffic modeling, infrastructure planning, and grade separation analyses), NAICS 541690 – Other Scientific and Technical Consulting Services (Specialized technical consulting for environmental impacts, climate change integration, and transportation equity analyses), NAICS 541820 – Public Relations Agencies (Developing and executing stakeholder engagement plans, public outreach, communication strategies, and media coordination)

Records and Due Date

This bid opportunity was entered into BidAmerica on December 9, 2025, and was last updated on January 15, 2026. All bids and/or proposals are due on January 20, 2026.

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All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by San Diego Association of Governments (SANDAG). BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from San Diego Association of Governments (SANDAG) prior to bidding.