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The People, Projects & Resources that Build California

Counties · District 11 (San Diego)

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

LettingProposalMajor work typeDocuments
Nov 3, 202611A4455IFPQ-Certified SB including MB, SB-PW or a DVBE, Landscape Maintenance Service in San… · License C-27Proposal
Nov 3, 202611A4463Plant Establishment for Treatment BMPs San Diego County · License A,C-27Proposal
Nov 4, 202611-431804Install capture housing, landscape, and electrical · License A,C-42Proposal
Nov 4, 202611A4465Install Raised Rumble Bars - San Diego County · License AProposal
Nov 5, 202611-430974ADA curb ramps, high tension cable barrier, and LED lighting · License A,C-8,C-10,C-12Proposal
Nov 6, 202611A4460Guardrail Replacement - San Diego County · License A,C-08,C-13,C-31Proposal
Nov 10, 202632A0732Heating, Ventilation, Air Conditioning (HVAC) Installation in San Diego County · License C-20Proposal
Nov 12, 202611A4469SB Minor B-Install passageway for emergency vehicles-San Diego County · License AProposal
Nov 19, 202611-430884Cold plane, RHMA-G, SAMI, drainage, curb ramps, and electrical · License A,C-10,C-12Proposal
Dec 1, 202611-430874Clairemont drive bridge deck repair · License A,C-8Proposal
Dec 2, 202611-2N2384Apply methacrylate, place polyester concrete overlay and joint seals · License A,C-8,C-12,C-32Proposal
Dec 16, 202611-430914Cold plane AC Pvmt, RHMA-G overlay, landscape, Elect., and drainage · License A,C-10,C-12Proposal

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.

Find San Diego County subcontractors Find San Diego County general contractors

San Diego County project news

Projects & Developments

San Diego and Imperial counties have 15 Caltrans listings, from guardrail to a bridge deck repair

Six construction contracts and nine service contracts open between Nov. 3 and Dec. 16. Most list a General Engineering license; guardrail and landscape work dominate the service side.
Oct 31, 2026

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

Nearby counties

District 11 (San Diego) region: Imperial

Also in Caltrans District 11: (same as above)