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Freight Carrier · Buckeye, AZ

DUNCAN & SON LINES INC

23860 W US HWY 85 · Buckeye, AZ 85326

Authorized: Property
(623) 386-4511 Tap to call
  • MC #144606
  • USDOT #44035 USDOT Active
  • 259
    Power Units
  • 231
    Drivers
  • Carrier
    Entity Type

About this carrier

DUNCAN & SON LINES INC is a Buckeye, AZ freight carrier that is authorized for property in the state of Arizona. This company has 259 truck(s) in their fleet and 231 truck drivers. Their motor carrier number is MC-144606 and their USDOT number is 44035.

Sourced from FMCSA SAFER · last filed 02/10/2026 · last updated May 26, 2026.

Carrier Details

  • Operating Status AUTHORIZED FOR Property
  • MCS-150 Filed 02/10/2026
  • MCS-150 Mileage 23,801,483 (2025)

Authority & Operations

Operation Classification
  • Authorized for Hire
Carrier Operation
  • Interstate

Cargo Authorized

  • General Freight
  • Building Materials
  • Intermodal Containers
  • Grain, Feed, Hay
  • Chemicals
  • Refrigerated Food
  • Paper Products

Operating Territory

Map of states where this carrier has roadside inspections Arizona — home base

Home base   Based in Buckeye, Arizona. No roadside inspections on record in the past 24 months to map operating states.

Safety Record

52 Severe Violations Updated May 30, 2026

Crashes (24 mo)

  • 0
    Fatal
  • 5
    Injury
  • 10
    Tow
  • 15
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 1.41 40 Crash Indicator Not Public — Hours of Service 0.31 24 Vehicle Maintenance 2.05 90 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0.11 3

Inspection Summary

  • 390
    Total
  • 249
    Clean
  • 141
    With violations

24-month window ending May 15, 2026

Violations Cited 89 unique codes

Critical 32

  • 392.2-SLLS4State/Local Laws - Speeding 15 or more miles per hour over the speed limit6× SW 10
  • 392.2-SLLSWZState/Local Laws - Speeding work/construction zone1× SW 10
  • 392.82DUMTDriver - Using a hand-held mobile telephone1× SW 10
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS14× OOS×14 SW 8
  • 383.95LCDLRestriction - (CDL) - Operate a CMV in violation of a restriction.1× OOS×1 SW 8
  • 383.23A2-LCDLNLicense (CDL) - Operate a CMV and does not possess a valid CDL1× OOS×1 SW 8
  • 393.75A1-TAORETATires - All others, has more than one ply exposed in the tread area exceeding 2 square inches.1× OOS×1 SW 8
  • 391.11(b)(4)Driver operating a CMV without proper endorsements or in violation of restrictions1× OOS×1 SW 8
  • 393.75(a)(3)Tire-flat and/or audible air leak1× OOS×1 SW 8
  • 393.75(a)(1)Tire-ply or belt material exposed1× SW 8
  • 393.75A1-TEPBMTires - All others - Exposed ply or belt material in tread or sidewall area1× SW 8
  • 393.75C-TAOTD-LT2/32Tires - Less than 2/32 inch tread depth1× SW 8
  • 393.207A-SAPPASSuspension - Axle positioning part cracked/broken/loose/missing resulting in axle shift2× OOS×2 SW 7
  • 395.3A1-HOSPDHOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time4× OOS×1 SW 7
  • 393.207F-SASMDSuspension - Air spring/bag is missing or is detached at the top or bottom.1× OOS×1 SW 7
  • 395.3A2-HOSPDITHOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time1× OOS×1 SW 7
  • 393.207(a)Axle positioning parts defective/missing1× OOS×1 SW 7
  • 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on2× OOS×2 SW 6
  • 393.11A1-LSLMWRLighting - Stop lamps - Both missing when required to be on.1× OOS×1 SW 6
  • 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.1× OOS×1 SW 6
  • 395.8A1-HOSPHOS (Property) - Failing to have a record of duty status using the method prescribed1× OOS×1 SW 5
  • 393.45A-BHTBSAir Brake - Hose/tubing with a bulge/swelling when air pressure is applied3× OOS×3 SW 4
  • 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured8× OOS×2 SW 4
  • 393.45B2UVBrake Hose or Tubing Chafing and/or Kinking Under Vehicle2× OOS×1 SW 4
  • 393.45B2-BHTDAir Brake - Hose/tubing damage into the outer reinforcement ply.2× OOS×1 SW 4
  • 396.3A1-BNMHBrake - Non-manufactured hole or crack in the spring brake housing section of a parking brake1× OOS×1 SW 4
  • 393.45(b)(2)Brake hose or tubing chafing and/or kinking1× OOS×1 SW 4
  • 393.43A-TPVAir Brake - Inoperable or missing tractor protection valve1× OOS×1 SW 4
  • 396.5B-HWSLHubs - Wheel seal leaking2× OOS×1 SW 2
  • 391.11(b)(4)Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or excepted intrastate with the state driver's licensing agency.1× OOS×1 SW 2
  • 391.41B10-MCMedical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate1× OOS×1 SW 2
  • 396.3(a)1BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination1× OOS×1 SW 0

Unsafe Driving 8

  • 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit5× SW 7
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other4× SW 5
  • 392.2CFailure to obey traffic control device2× SW 5
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit4× SW 4
  • 392.2-SLLLRState/Local Laws - Lane restriction violation13× SW 3
  • 392.2LVLane Restriction violation4× SW 3
  • 392.2-SLLUPState/Local Laws - Unlawfully parking /leaving vehicle on roadway2× SW 1
  • 392.22A-DDriver - Failed to activate hazard warning signal flashers1× SW 1

Hours of Service 16

  • 395.3A2-HOSPDHOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time3× SW 7
  • 395.8(e)(1)PCHOS - False record of duty status driver improper use of Personal Conveyance - Not OOS2× SW 7
  • 395.8E-HOSPDHOS (Property) - No driver may make a false report in connection with a duty status. Explain1× SW 7
  • 395.3A2-PROPDriving beyond 14 hour duty period (Property carrying vehicle)1× SW 7
  • 395.3(a)(3)(ii)Driving beyond 8 hour driving limit since the end of the last on duty, off duty, or sleeper period of at least 30 minutes1× SW 7
  • 395.24D-ELDPTHOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with the instruction sheet provided by the motor carrier5× SW 3
  • 395.24(d)ELD cannot transfer ELD records electronically1× SW 3
  • 395.24HOS (ELD) - ELD Form and Manner4× SW 1
  • 395.30B1-ELDDFRHOS (ELD) - Driver failing to review records and certify the accuracy of the information.2× SW 1
  • 395.22H2-ELDNISDTHOS (ELD) Driver failing to have instruction sheet describing the data transfer mechanisms supported by the ELD and step-by-step instructions for the driver to produce and transfer the driver's hours of service records to an authorized safety official2× SW 1
  • 395.22G-ELDMFVHOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.1× SW 1
  • 395.22H4Driver failed to maintain supply of blank drivers records of duty status graph-grids1× SW 1
  • 395.24C2II-ELDTNHOS (ELD) - Driver failing to manually input or verify CMV trailer number.1× SW 1
  • 395.24C2IIIDriver failed to manually add shipping document number1× SW 1
  • 395.30B1Driver failed to certify the accuracy of the information gathered by the ELD1× SW 1
  • 395.8(a)HOS (Form) - Paper Log/Logging Programs Form and Manner1× SW 1

Vehicle Maintenance 33

  • 393.9A-LHLILighting - Headlamp(s) - Any inoperative2× SW 6
  • 393.9A-LFTSILighting - Front - Turn signal - inoperative1× SW 6
  • 393.9A-LRLILighting - Tail lamp - Any inoperative1× SW 6
  • 393.9A-LBLLighting - Backup lamp inoperative1× SW 6
  • 393.45D-BAir Brake - Audible air leak at a proper connection8× SW 4
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19985× SW 4
  • 393.48A-BMBCBDDrum Brake - Missing/broken component(s)3× SW 4
  • 396.3A1-ALBVAir Brake - Any leak from a brake valve2× SW 4
  • 396.3A1-BARSAir Brake - Air reservoir separated from its original attachment points or moving more than 1 inch2× SW 4
  • 393.40A-BBrake - Inadequate braking system2× SW 4
  • 393.45B2-BAir brake - Hose/tubing damaged or not secured1× SW 4
  • 393.45B2PCBrake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit1× SW 4
  • 393.45DLPCBrake Connections with Leaks - Connection to Power Unit1× SW 4
  • 393.45DLUVBrake Connections with Leaks Under Vehicle1× SW 4
  • 393.47(e)Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt1× SW 4
  • 396.3A1-BALACBrake - Audible air leak from a brake chamber1× SW 4
  • 393.55C2-BAir Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates a fault.1× SW 4
  • 396.17(c)Operating a CMV without proof of a periodic inspection1× SW 4
  • 393.11A1-CSLRRConspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 19978× SW 3
  • 396.5B-LLubrication - Oil or grease leak1× SW 3
  • 396.5(b)Oil and/or grease leak1× SW 3
  • 393.11No or defective lighting devices or reflective material as required1× SW 3
  • 393.95A4-EEUSEmergency Equipment - Fire Extinguishers - unsecured3× SW 2
  • 393.9A-LILLighting - Identification lamp(s) inoperative3× SW 2
  • 393.9A-LSMLLighting - Side marker lamp(s) inoperative2× SW 2
  • 393.205C-WRAWFLMIBWheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.1× SW 2

Locations

Physical Address
DUNCAN & SON LINES INC
23860 W US HWY 85
BUCKEYE, AZ 85326
Mailing Address
Same as physical.

Location on Map

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Related Companies

Other entries in the FMCSA database that share data with this carrier — name, phone, or address overlap. Worth a closer look during vetting.

Same phone number 2

These carriers list the same contact phone number.

CompanyStatusPower UnitsDriversMC#USDOT#
DSL LOGISTICS
Legally DSL LOGISTICS LLC
Buckeye, AZ
USDOT Active Authorized: BROKER Property0—4414942229816
4 GEN LOGISTICS LLC
Buckeye, AZ
USDOT Active Not Authorized115858401582145

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