Unofficial Notice of Invitation to Bid (NIB)

Calabasas City is seeking bids from qualified and interested contractors for the following project titled, West Calabasas Road Roundabout and Widening Project, identified under Solicitation ID: 2025-19. Work is to be performed near 100 Civic Center Way, Calabasas, CA 91302, USA in Los Angeles County.

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General Project Description

The project involves the construction of a roundabout at the intersection of West Calabasas Road and Mureau Road in Calabasas, California. This includes the widening of Calabasas Road to accommodate turn lanes and approaches, along with the provision of bike and pedestrian pathways. The geotechnical evaluation provided recommendations for design and construction, covering site preparation, grading, foundation design for retaining walls, and pavement design.

General Bid Items

Quantity: - Unit: - Work Item: Site Cleanup
Quantity: - Unit: - Work Item: Soil and Bedrock Removals
Quantity: - Unit: - Work Item: Preparation of Fill Areas
Quantity: - Unit: - Work Item: Keying and Benching
Quantity: - Unit: - Work Item: Fill Placement
Quantity: - Unit: - Work Item: Vertical Trench Excavation
Quantity: - Unit: - Work Item: Backfill of Utility Trenches
Quantity: - Unit: - Work Item: Manufactured Fill Slopes
Quantity: - Unit: - Work Item: Retaining Wall Foundations (Conventional Footings)
Quantity: - Unit: - Work Item: Footing Excavations
Quantity: - Unit: - Work Item: Footing Subsoil Premoistening
Quantity: - Unit: - Work Item: Retaining Walls (General)
Quantity: - Unit: - Work Item: Soil Nail Retaining Walls
Quantity: - Unit: - Work Item: Pile Foundations (Drilled Cast-in-Place Concrete Piles)
Quantity: - Unit: - Work Item: Retaining Wall Waterproofing and Drainage
Quantity: - Unit: - Work Item: Pavement Structural Section
Quantity: - Unit: - Work Item: Pavement Subgrade Preparation
Quantity: - Unit: - Work Item: Aggregate Base Preparation
Quantity: - Unit: - Work Item: Concrete Curbs
Quantity: - Unit: - Work Item: Site Drainage

NAICS Classification

NAICS 237310 – Highway, Street, and Bridge Construction, NAICS 238910 – Site Preparation Contractors, NAICS 541330 – Engineering Services, NAICS 237110 – Water and Sewer Line and Related Structures Construction, NAICS 238110 – Poured Concrete Foundation and Structure Contractors

Records and Due Date

This bid opportunity was entered into BidAmerica on November 27, 2025, and was last updated on January 8, 2026. All bids and/or proposals are due on January 16, 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 Calabasas 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 Calabasas City prior to bidding.