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FMCSA Carrier Profile

DUN TRANSPORTATION & STRINGING INC

Sherman, TX

CarrierChk vetting signal
Review recommended
Elevated Out-of-Service Rate
27.3% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 78% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
See details ↓
FMCSA status: Active & Authorized  ·  DOT 82788 · MC 19416
Satisfactory Active 12 yrs, 6 mo · first granted 1981
60
Power Units
30
Drivers
80
Inspections
28%
Vehicle OOS
$1,000,000
Insurance

Broker Vetting Summary

Key signals from current FMCSA records

Authority
Active
MC-19416 · Common carrier
Insurance
On File
Zurich American Insurance Company
Safety
Satisfactory
27.3% OOS · 80 inspections on record
Flags · 1
Elevated Out-of-Service Rate
27.3% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 78% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
  • Operating authority active 12 yrs, 6 mo since reinstatement on April 17, 2014; first granted January 2, 1981 (45 yrs, 10 mo ago)
  • Insurance on file: $1,000,000
  • FMCSA safety rating: Satisfactory
  • Vehicle out-of-service rate 28.0% — above the 20.7% national average
  • Driver out-of-service rate 0.0% — below the 5.5% national average
  • 80 FMCSA inspections on record

Authority & Compliance

Authority, insurance and required filings

Operating Authority

MC19416
Motor Carrier of Property (Except Household Goods) · $750,000 required
Active
MC019416
Common Carrier, Contract Carrier
Active

Insurance on File

ZURICH AMERICAN INSURANCE COMPANY
BI&PD · $1,000,000 · Policy BAP 1102592
On File
AMERICAN HOME ASSURANCE CO.
BI&PD · $1,000,000 · Policy BE3585119
On File

Required Filings

Liability (BIPD)
$2,000,000

Company Information

Registration, contact and cargo details

FMCSA Registration

DOT Number
82788
MC Number
MC-19416
Safety Rating
Satisfactory
Entity Type
Corporation
Operation Classification
Authorized for hire, Private (property)
MCS-150 Filed
August 10, 2026
FMCSA Registration
June 1, 1974
Authority First Granted
January 2, 1981
Authority Reinstated
April 17, 2014
Annual Mileage
2,315,820 mi (2025)

Contact Information

Address
304 Reynolds Ln, Sherman, TX 75092
Owner / Officer
Tyler Nunnenkamp

Cargo Types

Logs/Poles/BeamsMachinery/Large ObjectsOilfield EquipmentOther Cargo

Safety Snapshot

Out-of-service rates, violations and crashes

Safety & Inspection Summary

Total Inspections
80
Driver Inspections
16
Vehicle Inspections
71
Out-of-Service Violations
35

Violations by Category

Vehicle Maintenance255
Unsafe Driving4
Hours of Service2

OOS Rates vs. National Average

Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate28.0% · national avg 20.7%
⚠ Above national average (7.3pp higher)
27.3% of 55 inspections in the last 24 months put a driver or vehicle out of service — 78th percentile among carriers with 25–99 inspections (lower is better). CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.

Inspection Trend by Year

2026
16 insp · 10 OOS
2025
42 insp · 13 OOS
2024
13 insp · 6 OOS

Violation Rate by Category

Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.

Vehicle Maintenance 48 of 51 inspections
Unsafe Driving 3 of 56 inspections
Hours of Service 0 of 56 inspections
Driver Fitness 3 of 56 inspections
Controlled Substances 0 of 56 inspections

Crash History (6)

Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
6
Crashes
0
Fatalities
2
Injuries
6
Tow-aways
DateStateFatalInjuredTowConditions
August 10, 2026 MS — — Yes No Adverse Conditions · Daylight · Dry
February 16, 2026 TX — — Yes No Adverse Conditions · Daylight · Dry
February 16, 2026 TX — — Yes No Adverse Conditions · Daylight · Dry
August 22, 2025 TX — 1 Yes No Adverse Conditions · Daylight · Dry
March 10, 2025 TX — 1 Yes No Adverse Conditions · Dark - Not Lighted · Dry
October 28, 2024 TX — — Yes No Adverse Conditions · Daylight · Dry

Fleet & Operating Areas

Observed roadside activity and equipment

Where This Carrier Operates

States where this carrier's roadside inspections were recorded
FewerMore
TX64
LA1
MS1

Fleet & Equipment (70)

Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Tractor-Trailer Power units Class 8 · trailers up to 68 ft
Power units
~37
of 60 reported to FMCSA
Trailers
~33
seen at inspection
Equipment types observed
Tractor
37
Pole / Pipe
28
Pole Trailer
2
Semi-trailer
2
Flatbed
1
Units on record
VehicleTypeVINInspectionsWith OOS
2013 Magnolia Trailers, Inc. Pole / Pipe · 67 ft 1M9PC6722D1435499 4 —
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X9GJ103713 4 —
2017 Freightliner SD122 Tractor · Class 8 3AKJGNDR7HDJA7818 4 2
2027 Atoka Trailer & Mfg. Pole / Pipe · 40 ft 1A9P54021VA245503 3 1
2005 Mack CHN Tractor · Class 8 1M1AJ06Y05N002596 3 1
2006 Mack CHN Tractor · Class 8 1M1AJ06Y06N004866 3 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6422D1435488 3 —
2009 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682391435193 3 2
2018 Freightliner SD122 Tractor · Class 8 3AKJGNDR4JDJL8499 3 —
2027 Atoka Trailer & Mfg. Pole / Pipe · 40 ft 1A9P54023VA245504 2 —
Show all 70 units
VehicleTypeVINInspectionsWith OOS
2027 Atoka Trailer & Mfg. Pole / Pipe · 40 ft 1A9P54024VA245513 2 —
2013 Freightliner Coronado Tractor · Class 8 1FUJGNDR1DDBZ3324 2 —
2012 Freightliner Coronado Tractor · Class 8 1FUJGNDR8CDBK2779 2 2
2006 Mack CHN Tractor · Class 8 1M1AJ06Y16N004794 2 —
2008 Mack CHU (Pinnacle) Tractor · Class 8 1M1AN07Y48N001233 2 1
2008 Mack CHU (Pinnacle) Tractor · Class 8 1M1AN09Y88N001152 2 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6420D1435487 2 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6423D1435483 2 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC642XD1435481 2 1
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682081435280 2 —
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682081435294 2 1
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682581435307 2 —
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682781435308 2 —
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682X81435304 2 —
2009 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682X91435191 2 2
2016 Freightliner SD122 Tractor · Class 8 3AKJGND60GDGX1015 2 —
2020 Freightliner SD122 Tractor · Class 8 3AKJGNDR2LDLZ4479 2 —
2021 Freightliner SD122 Tractor · Class 8 3AKJGNDR2MDMA6630 2 —
2019 Freightliner SD122 Tractor · Class 8 3AKJGNDR6KDKL0103 2 —
2019 Western Star 4700 Tractor · Class 8 5KJJAVDV5KLKG9857 2 1
2027 Atoka Trailer & Mfg. Pole / Pipe · 40 ft 1A9P54025VA245505 1 —
Othr Pole Trailer 1A9PP44277T565512 1 —
2007 All Wheel Drive Equipment Mfg., Inc. Pole / Pipe · 44 ft 1A9PP442X7T565513 1 —
2012 Freightliner Coronado Tractor · Class 8 1FUJGNDR2CDBK2793 1 —
2011 Freightliner Coronado Tractor · Class 8 1FUJGNDR3BDAW9133 1 1
2006 Mack CHN Tractor · Class 8 1M1AJ06Y16N004813 1 1
2006 Mack CHN Tractor · Class 8 1M1AJ06Y36N004795 1 —
2005 Mack CHN Tractor · Class 8 1M1AJ06Y55N002593 1 —
2008 Mack CHU (Pinnacle) Tractor · Class 8 1M1AN07Y28N001232 1 1
2008 Mack CHU (Pinnacle) Tractor · Class 8 1M1AN09Y18N001154 1 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6421D1435482 1 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6421D1435529 1 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6423D1435533 1 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6425D1435534 1 1
Magn Semi-trailer 1M9PC6426D1435550 1 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC6427D1435549 1 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 64 ft 1M9PC642XD1435531 1 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 67 ft 1M9PC6720D1435498 1 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 67 ft 1M9PC6720D1435520 1 1
2013 Magnolia Trailers, Inc. Pole / Pipe · 67 ft 1M9PC6722D1435518 1 —
2013 Magnolia Trailers, Inc. Pole / Pipe · 67 ft 1M9PC6724D1435519 1 1
2008 Magnolia Trailers, Inc. Pole / Pipe · 68 ft 1M9PC682281435295 1 —
Token Flat Semi-trailer 1R9LB4227J1051113 1 —
2000 Utility Trailer Manufacturer Flatbed · 48 ft 1UYFS2481YA979230 1 —
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X3GJ103724 1 —
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X3GJ103755 1 1
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X4GJ103750 1 —
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X5GJ103725 1 1
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X6GJ103779 1 —
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40X9GJ103680 1 1
2016 Kenworth T8 Series Tractor · Class 8 1XKDD40XXGJ103803 1 1
2014 Freightliner Coronado Tractor · Class 8 3AKJGND61EDFS4411 1 —
2016 Freightliner SD122 Tractor · Class 8 3AKJGND61GDHF9082 1 —
2020 Freightliner SD122 Tractor · Class 8 3AKJGNDR2LDLZ4482 1 —
2018 Freightliner SD122 Tractor · Class 8 3AKJGNDR3JDJY7919 1 —
2019 Freightliner SD122 Tractor · Class 8 3AKJGNDR4KDKG7596 1 1
2022 Freightliner SD122 Tractor · Class 8 3AKJGNDR4NDNK6662 1 —
2020 Freightliner SD122 Tractor · Class 8 3AKJGNDR5LDLZ4475 1 —
2019 Freightliner SD122 Tractor · Class 8 3AKJGNDV3KDKD1119 1 1
Shop Pole Trailer TR125982 1 —
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.

Inspection Details

Each roadside inspection with its violations

Inspection Records (80)

DateReport #LocationLevelViolOOSShipperUnit TypeMakeVINLicense
November 5, 2026 V262646814 TX, TX I 5 — DUN TRANSPORTATION
Truck Tractor
Trailer
KENWORTH
MAGNOLIA TRAILERS, INC.
1XKDD40X3GJ103755
1M9PC642XD1435481
TX R416657
TX Z83860
393.47E Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt Brakes Out of Adjustment
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear Brakes All Others
393.78-WOOS Wipers - Inoperative/missing/damaged on drivers side, during inclement weather requiring use of the windshield wipers Windshield/ Glass/ Markings
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured Emergency Equipment
395.8F1-HOSM HOS (Manner) - Driver's record of duty status not current to the time shown for last change of duty status. Date and Time: Incomplete/Wrong Log
November 4, 2026 V262686375 TX, TX II 3 — DUN TRANSPORTATION
Truck Tractor
Semi-trailer
FREIGHTLINER
—
3AKJGNDR2LDLZ4479
1UYFS2480XA978312
TX R814749
TX X70292
393.11A1-LHWS Lighting - Hazard warning signal(s) missing Lighting
393.9A-LFTSI Lighting - Front - Turn signal - inoperative Lighting
395.8F1-HOSM HOS (Manner) - Driver's record of duty status not current to the time shown for last change of duty status. Date and Time: Incomplete/Wrong Log
October 22, 2026 V262650470 TX, TX II 4 2 DUN TRANSPORTATION & STRINGIN
Truck Tractor
Semi-trailer
KENWORTH
—
1XKDD40X4GJ103750
1JJF482W6XS571402
TX R416656
TX X70284
383.23A2-LCDLN OOSLicense (CDL) - Operate a CMV and does not possess a valid CDL License-related: High
396.3A1-BALR OOSAir Brake - Fails air loss rate test Brakes All Others
393.19 Inoperative/Defective Hazard Warning Lamp Lighting
393.9A-LFTSI Lighting - Front - Turn signal - inoperative Lighting
August 10, 2026 5013012329 NEWTON COUNTY MS III — — N/A
Truck Tractor
Semi-trailer
WESTERN STAR
TOKEN FLAT
5KJJAVDV5KLKG9857
1R9LB4227J1051113
TX R748940
TX Z83974
July 9, 2026 V262476497 4281 TX188, TX II 9 — PIPEYARD
Truck Tractor
Semi-trailer
FREIGHTLINER
MAGNOLIA TRAILERS, INC.
3AKJGNDR6KDKL0103
1M9PC6423D1435483
TX R700331
TX Z83858
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 Reflective Sheeting
393.45DLPC Brake Connections with Leaks - Connection to Power Unit Brakes All Others
393.9 Inoperable Required Lamp Clearance Identification Lamps/Other
393.9 Inoperable Required Lamp Clearance Identification Lamps/Other
393.95A No/discharged/unsecured fire extinguisher Emergency Equipment
393.95F Emergency Equipment - Stopped vehicle warning devices missing or improper Emergency Equipment
396.17C Operating a CMV without proof of a periodic inspection Inspection Reports
396.17C Operating a CMV without proof of a periodic inspection Inspection Reports
392.2RG State vehicle registration or License Plate violation
July 9, 2026 V262476498 TX188, TX II 5 1 MPG
Truck Tractor
Semi-trailer
FREIGHTLINER
MAGNOLIA TRAILERS, INC.
1FUJGNDR8CDBK2779
1M9PC682081435294
TX R787203
TX 45212Z
383.23A2 OOSOperating a CMV without a CDL License-related: High
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 Reflective Sheeting
393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 Reflective Sheeting
393.78 Wipers - Inoperative / missing / damaged wipers Windshield/ Glass/ Markings
393.95A No/discharged/unsecured fire extinguisher Emergency Equipment
June 6, 2026 V262376374 ENTRY RAMP AT ENTRY, TX II 5 — DUN TRANSPORATION
Truck Tractor
Trailer
FREIGHTLINER
MAGNOLIA TRAILERS, INC.
3AKJGNDR6KDKL0103
1M9PC6423D1435483
TX R700331
TX Z83858
393.104F3 Loose or unfastened tiedown Tiedown
393.11TT Truck-Tractor with No retroreflective sheeting or reflex reflective material on vehicle manufactured after July 1997 Reflective Sheeting
393.9 Inoperable Required Lamp Clearance Identification Lamps/Other
396.17C Operating a CMV without proof of a periodic inspection Inspection Reports
396.3A1 Inspection, repair and maintenance of parts and accessories Wheels Studs Clamps Etc.
May 19, 2026 LAPLS00783 DERIDDER LA III 1 — —
Truck Tractor
Trailer
FREIGHTLINER
MAGNOLIA TRAILERS, INC.
3AKJGND61EDFS4411
1M9PC6423D1435533
TX R748938
TX 134B082
392.16-D Driver - Failed to use seat belt while operating a CMV Seat Belt
February 26, 2026 V262250781 IH10 WB SEALY SCALE, TX II 5 3 DUN TRANSPORTATION AND STRING
Truck Tractor
Trailer
KENWORTH
MAGNOLIA TRAILERS, INC.
1XKDD40XXGJ103803
1M9PC682X91435191
TX R417146
TX 45114Z
393.104F3 OOSLoose or unfastened tiedown Tiedown
393.48A OOSInoperative/defective brakes Brakes All Others
396.3A1BOS BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination Brake Out Of Service
393.78 Wipers - Inoperative / missing / damaged wipers Windshield/ Glass/ Markings
393.9 Inoperable Required Lamp Clearance Identification Lamps/Other
February 18, 2026 V262229712 418 US90, TX II 2 — PUMP CO
Truck Tractor
Trailer
MACK
SHOP
1M1AN09Y18N001154
TR125982
TX R188087
TX Z83728
393.9 Inoperable Required Lamp Clearance Identification Lamps/Other
392.2RG State vehicle registration or License Plate violation

Shippers Seen at Inspections

Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.

ShipperInspectionsMost recent
MPG 3 July 9, 2026
PUMP CO 3 February 18, 2026
DUN TRANS & STRINGING INC 2 January 28, 2026
DUN TRANSPORTATION & STRINGER 2 November 17, 2025
TG MERCER 2 August 26, 2025
ENVISION GROUP 2 January 19, 2024
ENSTRUCTURE RICHARDSON 2 December 4, 2023
PIPEYARD 1 July 9, 2026
DUN TRANSPORATION 1 June 6, 2026
DOGGETT FREIGHTLINER 1 December 15, 2025
TROY 1 November 18, 2025
GARDENDALE RAILROAD YARD 1 November 13, 2025

5 more shippers named at fewer inspections.

History & Filings

Authority, insurance and process-agent records

Authority History

DateStatusType
April 17, 2014REINSTATEDCommon Carrier
April 17, 2014Active
REINSTATED
Motor Carrier of Property (Except Household Goods)
April 7, 2014REVOKEDCommon Carrier
May 15, 2006REINSTATEDCommon Carrier
May 10, 2006REVOKEDCommon Carrier
December 30, 2004REINSTATEDCommon Carrier
April 27, 2004REVOKEDCommon Carrier
April 27, 2004REVOKEDContract Carrier
June 29, 1999GRANTEDContract Carrier
April 28, 1999DISCONTINUED REVOCATIONCommon

Insurance & Revocation Filings

DateTypeStatus
April 1, 2020BI&PD Primary/ExcessOn file
July 31, 1998BI&PD Primary/ExcessOn file
March 5, 2014CONTRACTOn Record
April 7, 2006CONTRACTOn Record
March 25, 2004CONTRACTOn Record
October 16, 1998CONTRACTOn Record

BOC-3 Process Agent

Corporation Service Company
251 Little Falls Drive, Wilmington, DE, 19808

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Data sourced from FMCSA MCMIS via Socrata. Record last updated: November 1, 2026. Verify directly on FMCSA SAFER Web.

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