DUNCAN & SON LINES INC
ActiveNot RatedINTERSTATEHAZMAT
DUNCAN & SON LINES INC is a motor carrier based in BUCKEYE, Arizona, registered with FMCSA since 1974. Their fleet consists of 259 commercial vehicles staffed by 231 drivers. Their vehicle out-of-service rate of 0.0% is below the national average of 20.7%, suggesting relatively well-maintained equipment. The carrier is authorized for hazardous materials transportation. Our composite safety score rates this carrier at 65/100, indicating a mixed safety profile that warrants closer review.
259
Power Units
231
Drivers
44035
USDOT #
65/100
Safety Score
Company Details
- Legal Name
- DUNCAN & SON LINES INC
- USDOT Number
- 44035
- Entity Type
- CARRIER
- Address
- 23860 W US HWY 85
BUCKEYE, AZ 85326 - Phone
- (623) 386-4511
- Carrier Operation
- Interstate
- Last MCS-150 Update
- February 10, 2026
Inspection Record
| Type | Total | OOS | Rate | Nat'l Avg |
|---|---|---|---|---|
| Vehicle | 1 | 0 | 0.0% | 20.7% |
| Driver | 1 | 0 | 0.0% | 5.5% |
| Hazmat | 0 | 0 | 0.0% | 4.5% |
Crash History
0
Fatal
6
Injury
15
Towaway
15
Total
Insurance
Insurer: NATIONAL INTERSTATE INSURANCE COMPANY
- BIPD Liability
- $1.0M(req: $750K)OK
- Cargo
- N/A
- Bond/Surety
- N/A
BASICs Safety Scores
Unsafe Driving1.46%
Crash IndicatorN/A
HOS Compliance0.43%
Vehicle Maintenance1.78%
Controlled Substances0%
Hazmat ComplianceN/A
Driver Fitness0.04%
Higher percentile = worse safety performance. Scores above 75% may trigger FMCSA intervention.
Location
23860 W US HWY 85, BUCKEYE, AZ 85326
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Frequently Asked Questions
What is DUNCAN & SON LINES INC's USDOT number?
DUNCAN & SON LINES INC's USDOT number is 44035. The company is based in BUCKEYE, Arizona.
Is DUNCAN & SON LINES INC a safe trucking company?
DUNCAN & SON LINES INC has not received a formal safety rating from FMCSA. The company has had 1 vehicle inspections with a 0.0% out-of-service rate (national average: 20.7%). They have 15 reportable crashes on record.
How many trucks does DUNCAN & SON LINES INC have?
DUNCAN & SON LINES INC operates 259 power units (trucks/commercial vehicles) and employs 231 drivers, according to their latest FMCSA filing.
Does DUNCAN & SON LINES INC have adequate insurance?
DUNCAN & SON LINES INC has $1.0M in BIPD liability insurance on file (meets the required $750K). Insured by NATIONAL INTERSTATE INSURANCE COMPANY.
Source: FMCSA Safety and Fitness Electronic Records (SAFER) System