DUNCAN & SON LINES INC
- DOT
- 44035
- MC Docket
- 144606
- Authority
- AUTHORIZED FOR HIRE · Hazmat
- Safety
- Satisfactory
About DUNCAN & SON LINES INC
Duncan & Son Lines Inc is a large fleet operator based in Buckeye, AZ, registered with the FMCSA since 1974 (52 years). The carrier operates 259 power units and 231 drivers, placing it in the top 99th percentile of US for-hire carriers by fleet size. Operating authority: AUTHORIZED FOR HIRE, with hazardous-materials endorsement. Reported 23,801,483 annual miles for 2025 — approximately 91,898 miles per power unit. Cargo carried includes chemicals, meat, other, building materials, and machinery and large objects. FMCSA safety rating: Satisfactory (issued October 2010).
Browse other for-hire carriers based in AZ, or see all FMCSA-registered carriers.
Fleet & operations
- Power units
- 259
- Drivers
- 231
- Annual miles
- 23,801,483
reported for 2025
Cargo carried
Other: SCRAP METAL
Other carriers in AZ
Data sourced from FMCSA Company Census (public domain). Last refreshed Sep 5, 2026. MCS-150 last updated Feb 2026. Safety rating issued Oct 2010.