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DUNCAN & SON LINES

23860 W US HWY 85

Overview

  • FMCSA Authority status Active since
  • USDOT44035
  • DocketMC144606
  • Carrier operationInterstate
About
Duncan & Son Lines, Inc. is a family owned and operated trucking company established in 1943 and is now the premier intermodal carrier running in Southern California and Arizona. In business since 1943, we have a proven track record of reliability and sustainability. We currently operate a fleet of over 220 late model trucks with a commitment to the latest clean emission and safety technologies.

Flexible, cooperative teamwork is what has led us to success and makes us a great match for anyone looking for a truck driving job in Phoenix, Los Angeles, the Inland Empire, and everywhere along the I-10 corridor.
Fleet information
MCS-150 Mileage (2025): 23,801,483 miles - Reported on
Total drivers
231
Operation classifications
Auth. For Hire
Cargo Carried
General freight
Building materials
Intermodal cont.
Grain, feed, hay
Chemicals
Refrigerated food
Paper products
Operating area
This map highlights states where the company is likely driving, based on truck inspection data from the FMCSA.
Headquarters
Operating area

Inspections & safety

Inspections & safety violations
Total Severe Out of service
Measure
Percentile
Vehicle maintenance10120321.9412th
Unsafe driving431501.5426th
Hours of service compliance361430.4123rd
Driver fitness4240.096th
Controlled substances00000th
Accident report
Last 6 months 6-12 months ago 12-24 months ago Total
Fatalities0000
Injuries2103
Tow-away4206
Crash reports4206
Inspections
Inspections OOS inspections OOS percentage National average
Driver36341.10%11.21%
Vehicle2853211.23%27.87%

Company Jobs