Carrier profile · USDOT 112716 · MC-215735 · Updated Jun 13, 2026

Senn Brothers Inc

52 power unitsavg 7.8 yrRegional · 4 statesWEST COLUMBIA, SC82/100
CARRIER ACTIVEMC-215735 ACTIVERATED CONDITIONAL
Verified linksFMCSA 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 18.2%24-mo cumulative
050%nat'l 22.26%
Driver OOS 24.1%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 11 vehicle and 29 driver inspections over 24 months.

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

33.3% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 19.5 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

29 inspections in the charted months · busiest month Apr '26 · 4

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.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.3 / unit·yr
thin signalabundant signal
Few roadside inspections for a 52-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
52
Inspections · 24 mo
29
Annualized
≈15 / yr
Coverage
≈0.3 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

40%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
92%
Driver Fitness
Vektor peer est.
89%
Controlled Substances
Vektor peer est.
71%
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 Driving15 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance9 · 0 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving7 · 0 OOS
  • 391.41 No / expired medical certificateDriver Fitness7 · 4 OOS
  • 393.201 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 0 OOS
  • 392.16 Failure to use seat beltUnsafe Driving3 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance3 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance3 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 391.11 Driver not qualifiedDriver Fitness2 · 1 OOS

ELD & hours-of-service

1 hours-of-service / ELD violation on record · most recent Aug 4, 2023. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

1ELD device issues
0No log / no ELD
0False logs
0Drove over hours

0 ELD violations in the last 24 months.

Crash history· 25 total · 5 in 24 mo

25
Total crashes
5
In last 24 mo
0
Fatal
17
Injury
YearCrashesFatalInjuryTow
20261001
20253033
20241010
20211001
20192022
20171001
20142012
20131001
20127067
20112021
20102011
20071010
20021001
DateStateFatalitiesInjuriesTow-away
Jul 13, 2026SC00Yes
Dec 26, 2025SC01Yes
Nov 25, 2025SC01Yes
May 23, 2025SC02Yes
Nov 7, 2024SC01No
Sep 16, 2021SC00Yes
Nov 30, 2019SC02Yes
Sep 21, 2019SC01Yes
Sep 20, 2017NC00Yes
Nov 24, 2014SC01Yes
Jun 5, 2014SC00Yes
Oct 1, 2013SC00Yes
Dec 8, 2012NC00Yes
Mar 1, 2012SC01Yes
Mar 1, 2012SC01Yes
Feb 16, 2012SC02Yes
Feb 16, 2012SC02Yes
Feb 16, 2012SC02Yes
Feb 16, 2012SC02Yes
May 23, 2011SC02Yes
May 23, 2011SC02No
Oct 22, 2010SC00Yes
Feb 22, 2010SC01No
Feb 21, 2007SC02No
May 11, 2002SC00Yes