Carrier profile · USDOT 1667753 · MC-1721438 · Updated Jun 13, 2026

Karrenbrock Construction Inc

42 power unitsLocal · 1 statesWENTZVILLE, MO87/100
CARRIER ACTIVEMC-1721438 ACTIVEHAZMAT
Verified linkskarrenbrockconst.comFMCSA 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 30.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 6.3%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 20 vehicle and 16 driver inspections over 24 months.

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

25.0% · 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 16.9 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

24 inspections in the charted months · busiest month Jan '25 · 8

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 42-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
42
Inspections · 24 mo
24
Annualized
≈12 / yr
Coverage
≈0.3 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

13%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
15%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
87%
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.

ELD & hours-of-service

No hours-of-service or ELD violations on record across 30 inspections — a clean logging history.

Crash history· 20 total · 3 in 24 mo

20
Total crashes
3
In last 24 mo
0
Fatal
6
Injury
YearCrashesFatalInjuryTow
20262011
20251001
20241011
20234004
20222012
20211001
20202012
20182012
20171001
20161001
20131001
20121001
20101011
DateStateFatalitiesInjuriesTow-away
Jun 8, 2026MO01No
May 7, 2026MO00Yes
Jan 16, 2025MO00Yes
Feb 13, 2024MO01Yes
Oct 11, 2023MO00Yes
Oct 10, 2023MO00Yes
Aug 8, 2023MO00Yes
Jan 9, 2023MO00Yes
Dec 31, 2022MO00Yes
Dec 9, 2022MO01Yes
Dec 9, 2021MO00Yes
Jun 5, 2020MO01Yes
Feb 10, 2020MO00Yes
Oct 29, 2018MO00Yes
May 11, 2018MO01Yes
Jun 8, 2017MO00Yes
Mar 10, 2016MO00Yes
Nov 12, 2013MO00Yes
Oct 19, 2012MO00Yes
Nov 22, 2010MO04Yes