San Diego County construction: bids, contractors and projects
Caltrans lettings, licensed contractors and project news for San Diego County, California, updated daily from public records.
San Diego County is part of our District 11 (San Diego) coverage area and falls under Caltrans District 11 (San Diego), headquartered in San Diego. CSLB's license file lists 19,490 construction contractors with a San Diego County address: 9,330 licensed General Engineering (A) and General Building (B) contractors and 10,160 licensed specialty (C) and Residential Remodeling (B-2) contractors. The largest single group is CSLB specialty (C) contractor (9,948). Most are based in San Diego, Escondido, El Cajon.
Caltrans's advertised letting schedule currently has 12 upcoming proposals in San Diego County, the next on Nov 3, 2026.
Upcoming Caltrans lettings in San Diego County
| Letting | Proposal | Major work type | Documents |
|---|---|---|---|
| Nov 3, 2026 | 11A4455 | IFPQ-Certified SB including MB, SB-PW or a DVBE, Landscape Maintenance Service in San… · License C-27 | Proposal |
| Nov 3, 2026 | 11A4463 | Plant Establishment for Treatment BMPs San Diego County · License A,C-27 | Proposal |
| Nov 4, 2026 | 11-431804 | Install capture housing, landscape, and electrical · License A,C-42 | Proposal |
| Nov 4, 2026 | 11A4465 | Install Raised Rumble Bars - San Diego County · License A | Proposal |
| Nov 5, 2026 | 11-430974 | ADA curb ramps, high tension cable barrier, and LED lighting · License A,C-8,C-10,C-12 | Proposal |
| Nov 6, 2026 | 11A4460 | Guardrail Replacement - San Diego County · License A,C-08,C-13,C-31 | Proposal |
| Nov 10, 2026 | 32A0732 | Heating, Ventilation, Air Conditioning (HVAC) Installation in San Diego County · License C-20 | Proposal |
| Nov 12, 2026 | 11A4469 | SB Minor B-Install passageway for emergency vehicles-San Diego County · License A | Proposal |
| Nov 19, 2026 | 11-430884 | Cold plane, RHMA-G, SAMI, drainage, curb ramps, and electrical · License A,C-10,C-12 | Proposal |
| Dec 1, 2026 | 11-430874 | Clairemont drive bridge deck repair · License A,C-8 | Proposal |
| Dec 2, 2026 | 11-2N2384 | Apply methacrylate, place polyester concrete overlay and joint seals · License A,C-8,C-12,C-32 | Proposal |
| Dec 16, 2026 | 11-430914 | Cold plane AC Pvmt, RHMA-G overlay, landscape, Elect., and drainage · License A,C-10,C-12 | Proposal |
Contractors based in San Diego County
Counts come from the Contractors State License Board's License Master file (businesses whose license status is Clear and whose address is in San Diego County). Firms holding a General Engineering (A) or General Building (B) classification are counted as general contractors; the rest as specialty contractors.
- CSLB specialty (C) contractor: 9,948
- CSLB General Building (B) contractor: 8,162
- CSLB General Engineering (A) contractor: 1,168
- CSLB Residential Remodeling (B-2) contractor: 212
Find San Diego County subcontractors Find San Diego County general contractors
San Diego County project news
How to bid public work in San Diego County
State highway work in San Diego County is let by Caltrans; the county is in Caltrans District 11 (San Diego) (Caltrans districts). Bidders need a CSLB license and, for public works, DIR public works contractor registration. See how to bid Caltrans contracts.
State agencies buy through Cal eProcure (see the supplier registration guide).
Statewide rules that apply here
- Bidding Caltrans: a CSLB license, DIR registration, a bidder ID and a digital ID
- California mechanics liens: 20 days to give notice, 90 days to record, 90 days to sue
Nearby counties
District 11 (San Diego) region: Imperial
Also in Caltrans District 11: (same as above)