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Motor carrier · USDOT 2654686

SOUTHWEST TRAFFIC SIGNAL SERVICE INC, El Cajon, CA: USDOT 2654686 safety record, inspections, out-of-service, crashes

SOUTHWEST TRAFFIC SIGNAL SERVICE INC among San Diego County carriers

By power units, SOUTHWEST TRAFFIC SIGNAL SERVICE INC is number 678 of 12,800 San Diego County carriers, level with 64 that also file 9; the county’s middle fleet is 1 power unit.

SOUTHWEST TRAFFIC SIGNAL SERVICE INC (doing business as SOUTHWEST SIGNAL SERVICE), USDOT 2654686, MCS-150 filed April 3, 2025: 9 power units (9 trucks), 30 drivers (2 with a CDL), 120,000 miles in 2024; El Cajon, CA 92020, San Diego County; active on the census; Intrastate Non-Hazmat Carriers; no hazardous materials; not rated by FMCSA; hauls Building Materials, Other, Construction, General Freight; registered June 12, 2015.

Roadside inspections on file by year: 2026: 1; 2024: 2; 2023: 4.

  • September 8, 2026, CA: Level I, full inspection, 13 violations, 2 out-of-service (driver 0, vehicle 2).
  • November 7, 2024, CA: Level V, vehicle only inspection, 2 violations, no out-of-service order.
  • November 7, 2024, CA: Level V, vehicle only inspection, 0 violations, no out-of-service order.
  • September 27, 2023, CA: Level V, vehicle only inspection, 0 violations, no out-of-service order.
  • September 27, 2023, CA: Level V, vehicle only inspection, 0 violations, no out-of-service order.
  • September 27, 2023, CA: Level V, vehicle only inspection, 3 violations, no out-of-service order.
  • September 27, 2023, CA: Level V, vehicle only inspection, 2 violations, no out-of-service order.

Crashes on file by year: 2015: 1.

  • October 5, 2015, El Cajon, CA: 0 deaths, 0 injuries, towed away.

San Diego County carriers nearest SOUTHWEST TRAFFIC SIGNAL SERVICE INC in fleet size

Roadside inspections

DateFiled byLevelViolationsOut-of-serviceDriver OOSVehicle OOS
September 8, 2026CALevel I, full13202
November 7, 2024CALevel V, vehicle only2000
November 7, 2024CALevel V, vehicle only0000
September 27, 2023CALevel V, vehicle only0000
September 27, 2023CALevel V, vehicle only0000
September 27, 2023CALevel V, vehicle only3000
September 27, 2023CALevel V, vehicle only2000

Crashes

DateFiled byCityFatalitiesInjuriesTowed awayHazmat released
October 5, 2015CAEl Cajon00YesNo

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Figures from the FMCSA Company Census File, loaded October 15, 2026, and FMCSA’s inspection and crash files.

How this page was built: FMCSA Company Census File, read October 15, 2026.

What this page shows

This public-records page covers motor carrier USDOT 2654686, SOUTHWEST TRAFFIC SIGNAL SERVICE INC of El Cajon, CA, listing 9 power units, 30 drivers, 6 roadside inspections on file, 0 with an out-of-service order, and 1 crash on file. The page also reports an MCS-150 annual mileage of 120,000 miles for 2024 and a safety rating of Not rated.