PIONEER UNDERGROUND CONSTRUCTION
California contractor license #844480 · Lincoln, Placer County
License
- License number
- 844480
- Status
- Clear
- Classifications
- C-61/D-09 Drilling, Blasting and Oil Field Work
- Business type
- Sole Owner
- Issued
- Aug 11, 2004
- Expires
- Sep 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — Insurance Company Of The West
- Contractor's bond
- $25,000 — Philadelphia Indemnity Insurance Company
- DIR public works registration
- Registered through Jun 30, 2029
From the California Contractors State License Board (CSLB) public license file, last updated Sep 25, 2026. Verify license #844480 on CSLB's License Check.
California public works
PIONEER UNDERGROUND CONSTRUCTION appears on 25 public works projects registered with the California Department of Industrial Relations, for 23 awarding bodies between 2021 and 2025.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Oct 24, 2025 | 04-Ala,SCl,SM,SF-80, 92, 101, 237, 880,Electrical, low voltage & AV | California Department of Transportation (Caltrans) | Subcontractor | $55,957,000 |
| Jun 10, 2025 | District Wide Solar RepairsSolar, EV & energy | Fremont Union High School District | Subcontractor | $79,436 |
| May 20, 2025 | Pioneer Trail Ped Improvment Ph IIParks, landscape & fields | City of South Lake Tahoe | Subcontractor | $6,284,383 |
| May 9, 2025 | Critical Municipal FacilitiesSolar, EV & energy | Ava Community Energy | Subcontractor | $5,368,898 |
| May 6, 2025 | Walnut Ave Bikeway Phase 2 ImprovementTraffic & signals | City of Fremont | Subcontractor | $3,025,130 |
| Feb 10, 2025 | Photovoltaics Systems Design and InstallSolar, EV & energy | City of Cupertino | Subcontractor | $3,939,881 |
| Dec 17, 2024 | Traffic Signal Update ProjectTraffic & signals | City of Manteca | Subcontractor | $3,992,700 |
| Nov 6, 2024 | Victor Rd & Guild Ave SignalTraffic & signals | City of Lodi | Subcontractor | $903,999 |
| Sep 9, 2024 | 24-48 Solar Array Design-Build ServicesSolar, EV & energy | City of Mountain View | Subcontractor | $5,944,803 |
| Sep 5, 2024 | Montague Expressway at Mission CollegeOther | County of Santa Clara, Roads and Airports Dept. | Subcontractor | $130,615 |
| Aug 1, 2024 | Skyline College DAS InstallationElectrical, low voltage & AV | san mateo county community college district | Subcontractor | $956,686 |
| Jul 30, 2024 | City Multi-Facility Solar ProjectWater | City of Morgan Hill | Subcontractor | $7,583,500 |
| Jul 18, 2024 | HLPUSD District Office Data CenterElectrical, low voltage & AV | Hacienda La Puente Unified School District | Subcontractor | $45,000,000 |
| Jun 4, 2024 | CIP 73147 - DDI I580/Patterson PassOther | City of Tracy | Subcontractor | $42,587,374 |
| Jun 3, 2024 | 2024 Road Rehabilitation Rio Lindo AvenuPaving & streets | City of Chico | Subcontractor | — |
| Jun 3, 2024 | Contra Costa Blvd Improvements Project,Paving & streets | City of Pleasant HIll | Subcontractor | — |
| May 10, 2024 | Aptos Area Adaptive Traffic Control SystTraffic & signals | County of Santa Cruz DPW | Subcontractor | — |
| May 6, 2024 | 99W & South Main Street Improvement ProjPaving & streets | Tehama County Department of Public Works | Subcontractor | — |
| Apr 1, 2024 | Esplanade Corridor Safety and AccessibilOther | City of Chico | Subcontractor | — |
| Mar 2, 2024 | Treat Blvd Fiber Phase 2 ProjectTraffic & signals | City of Concord | Subcontractor | — |
| Dec 21, 2023 | El Carmelo Elementary School HVAC and FiFire & life safety | Palo Alto Unified School District | Subcontractor | — |
| Jul 11, 2023 | University Avenue/ US101 Pedestrian OverBridges & structures | City of East Palo Alto | Subcontractor | — |
| May 1, 2023 | Rehabilitate Runway 14/32 and Improve ElElectrical, low voltage & AV | California Redwood Coast-Humboldt County Airport | Subcontractor | — |
| Mar 13, 2023 | 04-0Y6804 ALA 580 MMBNOther | California Department of Transportation, Division of Design | Subcontractor | $8,841,107 |
| Feb 15, 2021 | Esplanade Corridor & Safety AccessibilitDesign, inspection & consulting | City of Chico | Subcontractor | — |
Most recent 25 of 25. 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
- City of Chico · 3 projects
- Ava Community Energy · 1 project
- County of Santa Cruz DPW · 1 project
- County of Santa Clara, Roads and Airports Dept. · 1 project
- Fremont Union High School District · 1 project
- City of Manteca · 1 project
- City of East Palo Alto · 1 project
- City of Mountain View · 1 project
- City of Fremont · 1 project
- Hacienda La Puente Unified School District · 1 project
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