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Unofficial Notice of Invitation to Bid (NIB)
Antioch City is seeking bids from qualified and interested contractors for the following project titled, INSTALLATION OF CURB RAMPS AT VARIOUS LOCATIONS, identified under Solicitation ID: P.W. 409-8. Work is to be performed near 200 H St, Antioch, CA 94509, USA in Contra Costa County.
General Project Description
This project involves the installation of concrete curb ramps in existing sidewalks at various locations within the City of Antioch. The scope includes, but is not limited to, the removal and replacement of concrete sidewalk, curb, gutter, and valley gutter, as well as replacing and relocating existing landscaping and other facilities. Additionally, the work encompasses the removal and replacement of asphalt concrete paving, pavement marking and markers, traffic control, and water pollution control measures.
General Bid Items
- Quantity: 1 Unit: LS Work Item: Mobilization
- Quantity: 1 Unit: LS Work Item: Water pollution control
- Quantity: 1 Unit: LS Work Item: Traffic control
- Quantity: 6700 Unit: LF Work Item: Concrete curb and gutter
- Quantity: 9400 Unit: SF Work Item: Concrete sidewalk
- Quantity: 24000 Unit: SF Work Item: Concrete curb ramps
- Quantity: 3700 Unit: SF Work Item: Concrete valley gutter
- Quantity: 1 Unit: LS Work Item: Project funding sign
NAICS Classification
NAICS 237310 – Highway, Street, and Bridge Construction (Covers the primary civil engineering work of installing curb ramps, sidewalks, concrete curb and gutter, valley gutter, asphalt paving, including associated traffic and water pollution control measures during construction.), NAICS 561730 – Landscaping Services (For replacement and relocation of existing landscaping and other facilities.)
Records and Due Date
This bid opportunity was entered into BidAmerica on February 16, 2026, and was last updated on February 16, 2026. All bids and/or proposals are due on March 24, 2026.
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Legal Disclaimer
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 Antioch City. 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 Antioch City prior to bidding.