Carrier profile · USDOT 1604546 · MC-593409 · Updated Jun 26, 2026

Unimark Lowboy Transportation LLC

77 power unitsavg 10 yrNational · 32 statesPLEASANT PRAIRIE, WI88/100
CARRIER ACTIVEMC-593409 ACTIVEHAZMAT
Verified linksatctransportation.comFacebookFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 17.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 1.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 47 vehicle and 104 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

30.0% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 14.8 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

100 inspections in the charted months · busiest month Jul '25 · 10

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.7 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 77-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
77
Inspections · 24 mo
104
Annualized
≈52 / yr
Coverage
≈0.7 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

38%
Unsafe Driving
Vektor peer est.
44%
Hours-of-Service
Vektor peer est.
21%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
36%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving59 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance24 · 3 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance18 · 16 OOS
  • 395.22 ELD — provider/registration/malfunctionHOS Compliance9 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance9 · 1 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance7 · 1 OOS
  • 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance6 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance6 · 3 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving4 · 0 OOS
  • 392.16 Failure to use seat beltUnsafe Driving4 · 0 OOS

ELD & hours-of-service

17 hours-of-service / ELD violations on record · most recent Aug 13, 2025. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

11ELD device issues
0No log / no ELD
6False logs
0Drove over hours

Trending worse — 64% of ELD violations are in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 91 total · 15 in 24 mo

91
Total crashes
15
In last 24 mo
5
Fatal
25
Injury
YearCrashesFatalInjuryTow
20262002
20259239
20247037
2023100410
20226026
20219019
20207007
2019100110
20185025
20174014
20165125
20157027
20143013
20132111
20125125
DateStateFatalitiesInjuriesTow-away
Mar 31, 2026OH00Yes
Feb 3, 2026TX00Yes
Dec 1, 2025TX00Yes
Sep 4, 2025OH00Yes
Aug 29, 2025MI00Yes
Aug 24, 2025OH11Yes
Jul 14, 2025TN24Yes
Jul 12, 2025GA02Yes
May 14, 2025MI00Yes
Mar 13, 2025NC00Yes
Jan 20, 2025OH00Yes
Dec 3, 2024WV01Yes
Nov 1, 2024OH02Yes
Sep 19, 2024OH00Yes
Sep 10, 2024WI00Yes
Jul 24, 2024CA01Yes
May 11, 2024PA00Yes
Apr 30, 2024IL00Yes
Dec 18, 2023GA02Yes
Dec 10, 2023FL02Yes
Nov 24, 2023NC00Yes
Aug 25, 2023GA00Yes
May 11, 2023VA00Yes
Apr 30, 2023VA03Yes
Apr 12, 2023NC00Yes