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Contra Costa County CA Construction Projects & Open Bids

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Title
Project Type
Publish Date
Valuation
Action Stage
City
State
County
Retail (Other)
11/10/2026
$500,000- $749,999
Sub Bidding, Construction Documents
WALNUT CREEK
CA
Contra Costa
Sewage Treatment Plant
11/10/2026
$6,250,000
GC Bidding
MARTINEZ
CA
Contra Costa
Paving, Sidewalk/Parking Lot
11/10/2026
$7,137,772
Bidding
RICHMOND
CA
Contra Costa
Landscaping, Paving, Roadway Lighting, Storm Sewer
11/10/2026
$4,300,000
Bidding
LAFAYETTE
CA
Contra Costa
Water Treatment Plant
11/10/2026
$5,000,000- $9,999,999
Bidding
RICHMOND
CA
Contra Costa
Water Treatment Plant
11/09/2026
$1,427,000
Bidding
Concord
CA
Contra Costa
Highway Signs/Guardrails, Paving, Sidewalk/Parking Lot
11/07/2026
$350,000- $400,000
Bid Results
CONCORD
CA
Contra Costa
Water Treatment Plant
11/06/2026
$2,037,000
GC Bidding
CONCORD
CA
Contra Costa
Highway Signs/Guardrails, Landscaping, Roadway Lighting, Sidewalk/Parking Lot, Water Line
11/06/2026
$375,000
Bidding
MARTINEZ
CA
Contra Costa
Library
11/06/2026
$100,000- $199,999
Bidding
WALNUT CREEK
CA
Contra Costa
Office
11/06/2026
$1,900,000
Bid Results
HERCULES
CA
Contra Costa
Supermarket/Convenience Store
11/05/2026
$200,000- $500,000
Bidding
SAN RAMON
CA
Contra Costa
Paving
11/05/2026
$1,000,000- $2,999,999
Bidding
PLEASANT HILL
CA
Contra Costa
Water Treatment Plant
11/05/2026
$600,000
Bidding
MARTINEZ
CA
Contra Costa
Office
11/05/2026
$500,000- $749,999
Bidding
WALNUT CREEK
CA
Contra Costa
Paving, Roadway Lighting
11/05/2026
$9,600,000
Bidding
EL CERRITO
CA
Contra Costa
Sanitary Sewer, Sewage Treatment Plant, Storm Sewer
11/05/2026
$1,000,000
Bid Results
RICHMOND
CA
Contra Costa
Office, Theater/Auditorium
11/05/2026
$5,000,000- $9,999,999
Bid Results
CONCORD
CA
Contra Costa
Water Line
11/05/2026
$4,250,000
Bidding
MARTINEZ
CA
Contra Costa
Communication Lines, Paving, Roadway Lighting
11/04/2026
$200,000- $299,999
Bidding
WALNUT CREEK
CA
Contra Costa