SOUTHWEST TRAFFIC SIGNAL SERVICE INC

California contractor license #451115 · El Cajon, San Diego County

License

License number
451115
Status
Clear
Classifications
  • A General Engineering Contractor
  • B General Building Contractor
  • C-10 Electrical Contractor
Business type
Corporation
Issued
Jan 9, 1984
Expires
Jan 31, 2028
Workers' compensation
Workers' Compensation Insurance — Insurance Company Of The West
Contractor's bond
$25,000 — Swiss Re Corporate Solutions Premier Insurance Corporation
DIR public works registration
Registered through Jun 30, 2028

From the California Contractors State License Board (CSLB) public license file, last updated Jan 2, 2026. Verify license #451115 on CSLB's License Check.

California public works

SOUTHWEST TRAFFIC SIGNAL SERVICE INC appears on 93 public works projects registered with the California Department of Industrial Relations, 11 of them as the prime contractor, for 23 awarding bodies between 2002 and 2026. Projects it led total $932,313 in reported contract value.

Most recent public works projects
DateProjectAwarding bodyRoleContract amount
Aug 11, 2026Slurry 2025 (Various Locations)Paving & streetsCity of El CajonSubcontractor$1,184,333
Jul 1, 2026Traffic Signal Maintenance FY 26-27Traffic & signalsCity of SanteePrime$117,503
Jul 1, 2026FY 27 Street Light MaintenanceTraffic & signalsCity of La MesaPrime$93,330
Jul 1, 2026FY 27 Traffic Signal MaintenanceTraffic & signalsCity of La MesaPrime$181,672
Jul 1, 2026Streetlight Maintenance Contract FY 26-2Traffic & signalsCity of SanteePrime$79,604
Apr 13, 2026SB Minor B - Connector Ramp Pavement RehPaving & streetsDepartment of Transportation, Division of Procurement and ContractsSubcontractor$198,281
Jan 14, 2026AC Overlay 2507Paving & streetsCity of San DiegoSubcontractor$7,809,646
Sep 2, 2025P-2 Sewer UpsizingSewer & wastewaterCity of National CitySubcontractor$4,468,000
Jul 1, 2025FY26 Street LightTraffic & signalsCity of La MesaPrime$90,965
Jul 1, 2025FY26 Traffic SignalTraffic & signalsCity of La MesaPrime$106,308
May 5, 2025Currux Detection Camera InstallationPaving & streetsCity of La MesaPrime$40,572
Apr 21, 2025Spring St & Lemon Ave Currux InstallPaving & streetsCity of La MesaPrime$40,572
Nov 8, 2024PS2173-012 AC Overlay 2404Sewer & wastewaterCity of San DiegoSubcontractor$30,000,000
Oct 11, 2024AC Overlay Group 2402Paving & streetsCity of San DiegoSubcontractor$13,748,930
Jul 18, 2024Redwood Village Rolando Park Improv 2 &Sewer & wastewaterCity of San Diego - Public Works DepartmentSubcontractor—
Jul 11, 2024Bay Ho Improv 2Sewer & wastewaterCity of San Diego - Public Works DepartmentSubcontractor—
Jun 28, 2024Talmadge Improv 1OtherCity of San Diego - Public Works DepartmentSubcontractor—
Jun 25, 2024Sewer & AC Water Group 793ASewer & wastewaterCity of San DiegoSubcontractor$22,527,245
Jun 12, 2024AC Water and Sewer Group 1040Sewer & wastewaterCity of San Diego - Public Works DepartmentSubcontractor—
Jun 11, 2024FY25 Street Light MaintenanceTraffic & signalsCity of La MesaPrime$87,635
Jun 11, 2024FY25 Traffic Signals MaintenanceTraffic & signalsCity of La MesaSubcontractor$102,415
Jun 3, 2024Montezuma/Mid-City Pipeline Phase 2 andPaving & streetsCity of San Diego - Public Works DepartmentSubcontractor—
May 14, 2024Traffic Signal System Maintenance, EmergTraffic & signalsCity of El CajonSubcontractor—
Mar 21, 2024Slurry Seal Group 2424Paving & streetsCity of San Diego Public Works ContractsSubcontractor—
Feb 26, 2024Asphalt Overlay 2200 SSPaving & streetsCity of San Diego - Public Works DepartmentSubcontractor—

Most recent 25 of 93. 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

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