Carrier profile · USDOT 568553 · Updated Jun 13, 2026

Builders Bloc Contracting Services LLC

67 power unitsLocal · 1 statesCHESTERFIELD, MO50/100
AUTHORITY STATUS UNKNOWN
Verified linksbuildersbloc.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 66.7%24-mo cumulative
050%nat'l 22.26%
Driver OOS 66.7%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 3 vehicle and 3 driver inspections over 24 months.

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

66.7% · latest 6-mo window

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. One window of data — no trend yet. 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

3 inspections in the charted months · busiest month Sep '25 · 1

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 67-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
67
Inspections · 24 mo
3
Annualized
≈2 / yr
Coverage
≈0.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
.12measure
SMS · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
11.5measure
SMS · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
Vehicle Maintenance
30measure
SMS · per-BASIC

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.

  • 393.9 Inoperative required lampsVehicle Maintenance7 · 4 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance4 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance2 · 0 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
  • 177.801 Other violationOther1 · 0 OOS
  • 383.23 Operating without a valid CDLDriver Fitness1 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1 · 1 OOS
  • 391.11 Driver not qualifiedDriver Fitness1 · 1 OOS
  • 391.41 No / expired medical certificateDriver Fitness1 · 1 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 4 inspections — a clean logging history.

Crash history· 11 total · 1 in 24 mo

11
Total crashes
1
In last 24 mo
0
Fatal
1
Injury
YearCrashesFatalInjuryTow
20241001
20191001
20172002
20151001
20131001
20062002
20042002
19981011
DateStateFatalitiesInjuriesTow-away
Oct 30, 2024MO00Yes
Nov 5, 2019MO00Yes
Nov 9, 2017MO00Yes
Aug 16, 2017MO00Yes
Jun 10, 2015MO00Yes
Apr 5, 2013MO00Yes
Oct 20, 2006MO00Yes
May 24, 2006MO00Yes
Oct 7, 2004MO00Yes
Feb 11, 2004MO00Yes
Nov 9, 1998MO02Yes