Carrier profile · USDOT 393555 · MC-568747 · Updated Jun 13, 2026

CEMSTONE CONCRETE MATERIALS LLC

187 power unitsavg 11.6 yrRegional · 3 statesMENDOTA HEIGHTS, MN74/100
CARRIER ACTIVEMC-568747 ACTIVE
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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 40.0%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 — 5 vehicle and 18 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 17.9 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

18 inspections in the charted months · busiest month Sep '24 · 2

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
≈0.0 / unit·yr
thin signalabundant signal
Few roadside inspections for a 187-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
187
Inspections · 24 mo
18
Annualized
≈9 / yr
Coverage
≈0.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

4%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
23%
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 Driving16 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance6 · 0 OOS
  • 392.16 Failure to use seat beltUnsafe Driving5 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance3 · 2 OOS
  • 393.207 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 0 OOS
  • 393.25 Lighting device requirementsVehicle Maintenance1 · 0 OOS
  • 393.100 Cargo securement (general)Vehicle Maintenance1 · 1 OOS
  • 393.60 Windshield / glazingVehicle Maintenance1 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance1 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 31 inspections — a clean logging history.

Crash history· 30 total · 8 in 24 mo

30
Total crashes
8
In last 24 mo
1
Fatal
13
Injury
YearCrashesFatalInjuryTow
20263013
20255035
20242002
20233003
20221001
20204113
20191011
20183023
20171011
20161011
20153023
20142002
20061010
DateStateFatalitiesInjuriesTow-away
Jul 16, 2026IA02Yes
Jun 5, 2026MN00Yes
May 1, 2026MN00Yes
Nov 14, 2025IA00Yes
Nov 4, 2025MN00Yes
Aug 12, 2025MN01Yes
Apr 29, 2025MN01Yes
Feb 25, 2025IA01Yes
Mar 12, 2024MN00Yes
Jan 4, 2024MN00Yes
Jul 24, 2023IA00Yes
Jun 29, 2023IA00Yes
Jun 22, 2023WI00Yes
Sep 29, 2022MN00Yes
Aug 28, 2020MN00Yes
Jul 30, 2020MN10Yes
Jun 12, 2020IA00Yes
May 30, 2020MN01No
Jul 17, 2019IA02Yes
Aug 1, 2018MN01Yes
Jul 3, 2018MN02Yes
May 21, 2018MN00Yes
Sep 30, 2017IA01Yes
May 16, 2016MN01Yes
Aug 12, 2015MN01Yes