WESTERN TRAFFIC SUPPLY INC
California contractor license #974188 · Pleasanton, Alameda County
License
- License number
- 974188
- Status
- Clear
- Classifications
- C-31 Construction Zone Traffic Control Contractor
- C-32 Parking and Highway Improvement Contractor
- Business type
- Corporation
- Issued
- Jun 22, 2012
- Expires
- Jun 30, 2028
- Workers' compensation
- Leasing Firm, Temp Agency, Etc — Ace American Insurance Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2027
From the California Contractors State License Board (CSLB) public license file, last updated May 22, 2026. Verify license #974188 on CSLB's License Check.
California public works
WESTERN TRAFFIC SUPPLY INC appears on 24 public works projects registered with the California Department of Industrial Relations, for 7 awarding bodies between 2022 and 2026.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jun 29, 2026 | 04-CC,Mrn-580-7.2/7.8, 0.0/1.6Bridges & structures | California Department of Transportation (Caltrans) | Subcontractor | $107,469,339 |
| Mar 5, 2026 | 04-SF-280-R0.0/T7.5Paving & streets | California Department of Transportation (Caltrans) | Subcontractor | $62,205,496 |
| Dec 18, 2025 | 04-CC-680-R0.0/R7.7Other | California Department of Transportation (Caltrans) | Subcontractor | $28,968,312 |
| Sep 25, 2025 | 04-Ala,CC,Sol-580, 680, 780-VarPaving & streets | California Department of Transportation (Caltrans) | Subcontractor | $93,523,406 |
| Aug 12, 2025 | Vasco Rd safety Improvements-Walnut BlvdOther | Contra Costa County Public Works Department | Subcontractor | $577,997 |
| Aug 8, 2025 | 04-Ala-260, 880-R0.8/R1.9, 29.4/R31.7Storm drain & flood control | California Department of Transportation (Caltrans) | Subcontractor | $95,207,833 |
| Aug 5, 2025 | 03-Sac-160-R44.9Traffic & signals | California Department of Transportation (Caltrans) | Subcontractor | $1,436,652 |
| Jul 23, 2025 | 04-SF-1-0.9/4.1, 5.8Other | California Department of Transportation (Caltrans) | Subcontractor | $11,080,900 |
| Jul 14, 2025 | 04-Sol-29-0.0/6.0Storm drain & flood control | California Department of Transportation (Caltrans) | Subcontractor | $24,980,109 |
| Jun 25, 2025 | 04-Ala-84-R21.4/R23.1Paving & streets | California Department of Transportation (Caltrans) | Subcontractor | $1,524,597 |
| Jun 19, 2025 | 04-Mrn,Nap,SCl,SF,SM,Son-1, 17, 37, 80,Traffic & signals | California Department of Transportation (Caltrans) | Subcontractor | $13,963,728 |
| May 6, 2025 | Dry Creek Rd Bridge over Dry CrkRDS15-22Bridges & structures | Napa County Public Works | Subcontractor | $6,331,821 |
| Apr 22, 2025 | Mare Island Causeway BPMPBridges & structures | City of Vallejo Department of Public Works Engineering Division | Subcontractor | $19,869,755 |
| Mar 27, 2025 | 04-CC-680-R0.0/21.0Other | California Department of Transportation (Caltrans) | Subcontractor | $4,950,981 |
| Feb 14, 2025 | 04-Sol-12-7.7/14.1Storm drain & flood control | California Department of Transportation (Caltrans) | Subcontractor | $18,916,085 |
| Feb 13, 2025 | 04-Ala-84-10.8/18.0Traffic & signals | California Department of Transportation (Caltrans) | Subcontractor | $2,298,130 |
| Dec 20, 2024 | 04-Mrn-37-R11.2/14.5Concrete & masonry | California Department of Transportation (Caltrans) | Subcontractor | $9,755,877 |
| Dec 17, 2024 | 04-Sol-29, 37, 80,780-VARTraffic & signals | California Department of Transportation (Caltrans) | Subcontractor | $6,167,000 |
| Nov 5, 2024 | 04-Sol-80-22.1/R23.0Storm drain & flood control | California Department of Transportation (Caltrans) | Subcontractor | $3,491,799 |
| Nov 4, 2024 | 04-Nap-29-R7.3/13.5Paving & streets | California Department of Transportation (Caltrans) | Subcontractor | $17,680,348 |
| Jan 19, 2024 | Clement Avenue Safety ImprovementPaving & streets | City of Alameda | Subcontractor | — |
| Mar 13, 2023 | 04-0Y6804 ALA 580 MMBNOther | California Department of Transportation, Division of Design | Subcontractor | $8,841,107 |
| Oct 27, 2022 | Express Lanes ProgramOther | Alameda County Transportation Commission | Subcontractor | $100,000,000 |
| Oct 27, 2022 | I-680 Sunol JPA Operations ProjectOther | Alameda County Transportation Commission | Subcontractor | $22,990,514 |
Most recent 24 of 24. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.
Awarding bodies it works for most
- California Department of Transportation (Caltrans) · 17 projects
- Alameda County Transportation Commission · 2 projects
- California Department of Transportation, Division of Design · 1 project
- City of Alameda · 1 project
- Napa County Public Works · 1 project
- City of Vallejo Department of Public Works Engineering Division · 1 project
- Contra Costa County Public Works Department · 1 project
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