Carrierintel
D&

DUNCAN & SON LINES INC

Carrierintel Safety Score: 78/100. 181 inspection violations in 12 months. Last inspected Oct 2026.

DOT 44035MC 144606ActiveMotor CarrierInterstateNATIONAL INTERSTATE INSURANCE COMPANYBUCKEYE, AZ

COMPANY

Authority since
2005-09-08
MCS-150
2026-02-10 · 23,801,483 mi (2025)
Fleet
259 units · — trailers · 231 drivers
Annual mileage (VMT)
23,801,483 mi (2025)

ADDRESS

Physical
23860 W US HWY 85
BUCKEYE, AZ 85326
Mailing
Same as physical

CONTACT

Phone
6233864511
Email
julie@duncantruckingltd.com

OFFICERS

Primary Officer
JULIE SMITH
Title
SAFETY MANAGER

OPERATION & CARGO

Operation classification
Authorized For Hire
Specialty
Refrigerated / Produce
Cargo types
12
General FreightMetal: Sheets, Coils, RollsBuilding MaterialsMachinery, Large ObjectsIntermodal ContainersGrain, Feed, HayMeatChemicalsRefrigerated FoodPaper ProductsConstructionOther: SCRAP METAL
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
573 mo
Active authority
INSURANCE
1 active
NATIONAL INTERSTATE INSURANCE COMPANY
RISK GRADE
Minimal Risk
1 risk factors · 4 strengths
OOS RATE
10.6%
68 / 643 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

78
out of 100
Good
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
259 power units
Unique power units seen
164
+ 229 trailer VINs
Inspections
257
Discrepancy
0.6x

Minimal Risk

1 risk factor · 4 strengths · 6 data points

SAFETY PERFORMANCE

Crash Record
144 crashes · 6 fatal · 31 with injuries · 142 tow-away
Clean Inspection Rate
89% — 575 clean of 643 inspections
Out-of-Service Rate
10.6% — driver OOS 7 insp., vehicle OOS 62 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
Active: Motor Carrier
Out-of-service orders
None on record
Authority Events
72 historical event(s) on file
MCS-150 Filing
Last filed 2026-02-10

INSURANCE

Active Coverage
1 policy(ies) on file · total max coverage $1,000,000

SUMMARY

4 injury crashes in the last 24 months
Low crash rate (2.7 per 100 trucks/yr)
89% clean inspections
Active insurance on file
Coverage $1.0M

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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