Carrier profile · USDOT 816566 · MC-422087 · Updated Jun 13, 2026

Knife River Corporation - South

233 power unitsavg 9.6 yrLocal · 1 statesBRYAN, TX88/100
CARRIER ACTIVEMC-422087 ACTIVEHAZMAT

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 6.8%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 44 vehicle and 46 driver inspections over 24 months.

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

21.4% · 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 7.3 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

45 inspections in the charted months · busiest month Jan '26 · 6

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
0.1 / unit·yr
thin signalabundant signal
Few roadside inspections for a 233-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
233
Inspections · 24 mo
46
Annualized
23 / yr
Coverage
0.1 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
19%
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 Driving17 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance7 · 1 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance4 · 1 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance4 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance3 · 0 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving2 · 0 OOS
  • 392.9 Failure to secure load / cargo not securedUnsafe Driving1 · 1 OOS
  • 393.207 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 75 inspections — a clean logging history.

Crash history· 136 total · 11 in 24 mo

136
Total crashes
11
In last 24 mo
5
Fatal
63
Injury
YearCrashesFatalInjuryTow
20261001
20258157
20242102
20231001
20224033
20214014
20206016
20195034
20187036
20179029
20163013
20155044
20145045
20136026
20125033
20117137
2010101610
20097016
20088077
20073023
20063123
20057036
20043003
20037037
20025035
20013013
20002002
DateStateFatalitiesInjuriesTow-away
Mar 27, 2026TX00Yes
Dec 26, 2025TX01Yes
Dec 16, 2025TX00Yes
Dec 5, 2025TX11Yes
Aug 8, 2025TX01Yes
Aug 6, 2025TX01Yes
Jul 24, 2025TX00Yes
Jun 3, 2025TX02No
Jan 13, 2025TX00Yes
Sep 3, 2024TX10Yes
Aug 21, 2024TX00Yes
Aug 11, 2023TX00Yes
Oct 20, 2022TX01No
Sep 22, 2022TX01Yes
Aug 17, 2022TX00Yes
May 17, 2022TX01Yes
Jul 9, 2021TX00Yes
Feb 7, 2021TX00Yes
Jan 17, 2021TX00Yes
Jan 9, 2021TX01Yes
Oct 23, 2020TX00Yes
Oct 16, 2020TX00Yes
Sep 28, 2020TX00Yes
Apr 23, 2020TX00Yes
Apr 22, 2020TX00Yes