Unofficial Notice of Invitation to Bid (NIB)

Napa County is seeking bids from qualified and interested contractors for the following project titled, Professional On-Call Airport Services for Architectural/Engineering; and Environmental/Planning; and Construction Management/Inspection at the Napa County Airport, identified under Solicitation ID: AIR022601. Work is to be performed near 1195 3rd St suite 310, Napa, CA 94559, USA in Napa County.

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General Project Description

Napa County is requesting Statements of Qualifications from Aviation Consultants to provide professional on-call services in architectural/engineering; environmental/planning; and construction management/inspection at the Napa County Airport for a five-year term. Services will be delivered on an as-needed basis through individual Task Orders, covering projects funded by FAA Airport Improvement Project (AIP) Grants and non-AIP funds. The broad scope of work encompasses airside/landside design (civil, hydrology, electrical), planning and environmental assessments (ACIP development, CEQA/NEPA compliance), and construction management/inspection services (site safety, quality assurance/control, daily reports, submittal review, ADA compliance, punch lists). Potential future projects include pavement rehabilitation, terminal and hangar improvements, road realignments, airfield security assessments, and various management plan updates.

General Bid Items

Quantity: - Unit: - Work Item: Architectural and Engineering Design Services (Providing design for airfield civil, hydrology, electrical, and utility projects; preparing contract plans and specifications; supporting Airport Capital Improvement Program (ACIP) development; and offering miscellaneous airport engineering and architectural consulting.)
Quantity: - Unit: - Work Item: Environmental and Planning Services (Conducting environmental studies, assessments, and reports (including CEQA/NEPA compliance); performing airport planning, airspace, and land use studies; coordinating with FAA and regulatory agencies on grant proposals and project documentation.)
Quantity: - Unit: - Work Item: Construction Management and Inspection Services (Providing construction management and inspection for civil, structural, mechanical, plumbing, framing, and electrical work; ensuring SWPPP program compliance; preparing daily inspection reports; reviewing progress payments; monitoring site safety and plan conformance; managing submittals, RFIs, and change orders; performing ADA compliance checks; and conducting constructability reviews.)
Quantity: - Unit: - Work Item: Program Coordination and Advisory Services (Coordinating with other consulting firms, County departments, and governing agencies; assisting with annual ACIP preparation and grant closeout)

NAICS Classification

NAICS 541310 – Architectural Services, NAICS 541330 – Engineering Services, NAICS 541370 – Surveying and Mapping, NAICS 541620 – Environmental Consulting Services, NAICS 541611 – Administrative Management and General Management Consulting Services, NAICS 541990 – All Other Professional, Scientific, and Technical Services

Records and Due Date

This bid opportunity was entered into BidAmerica on February 27, 2026, and was last updated on February 27, 2026. All bids and/or proposals are due on March 18, 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 Napa County. 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 Napa County prior to bidding.