DUNCAN & SON LINES
DOT# 44035
MC# 144606CARRIER
Trust Score
93 / 100
A Excellent
Components
Compliance · 40% 100
Safety · 35% 90
Insurance · 25% 85
No active cargo insurance on file
Confidence: high · based on FMCSA safety, insurance & authority data
How is this calculated?
Overview
Contact
Company Officers
JULIE SMITH
DAVID DUNCAN
Business Info
Organization: CORPORATION
D&B #: 21652607
HazMat: HazMat Carrier
Fleet
259
Power Units
231
Drivers
Equipment Breakdown
Term Tractors259
Trip Trailers3000
Authority
Status: ACTIVE
FMCSA add date: Jun 1, 1974
Broker authority: INACTIVE
MCS-150
Last updated: Feb 10, 2026
Mileage: 23,801,483 (2025)
Operation Classification
AUTHORIZED FOR HIRE
Carrier Operation
Interstate
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| SINK FARM EQUIPMENT INC | 3411930 | 1100357 | LEXINGTON, NC | ACTIVE | Officer |
| SIX 'K' TRANSPORTATION LLC | 1049348 | 438249 | SANDIA PARK, NM | INACTIVE | Officer |
| TEXAS SOUTHERN CRANE SERVICES | 3232943 | 1013968 | MATHIS, TX | ACTIVE | Officer |
Safety
Out-of-Service Rates
Driver388 inspections
1.3%
5.9%
Carrier
National avg
Vehicle302 inspections
11.9%
22.6%
Carrier
National avg
Hazmat27 inspections
0.0%
2.3%
Carrier
National avg
Crash Summary
0
Fatal
5
Injury
14.0
per 1M miles
14
Towaway
14
Total
BASIC Violations
Unsafe Driving97
Driver Fitness5
Hours of Service57
Drug / Alcohol0
Vehicle Maintenance117
Insurance
$1,000,000
BIPD Coverage
—
Cargo Coverage
1 policy on file1 active
| Type | Status | Insurer | Policy # | Coverage | Effective | Expires | Form |
|---|---|---|---|---|---|---|---|
| BIPD | Active | NATIONAL INTERSTATE INSURANCE COMPANY | DUN 8199969-01 | $1,000,000 | Sep 15, 2021 | — | 91X |
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