Carrier profile · USDOT 461096 · Updated Jun 13, 2026

DIAMOND B CONSTRUCTION CO LLC

15 power unitsavg 8.9 yrLocal · 1 statesALEXANDRIA, LA81/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONALHAZMAT
Verified linksdiamondb.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 33.3%24-mo cumulative
050%nat'l 22.26%
Driver OOS 8.3%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 6 vehicle and 12 driver inspections over 24 months.

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

50.0% · 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 15.8 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

11 inspections in the charted months · busiest month May '25 · 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.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.4 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 15-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
15
Inspections · 24 mo
12
Annualized
≈6 / yr
Coverage
≈0.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
66%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
81%
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.

  • 393.9 Inoperative required lampsVehicle Maintenance3 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving2 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance2 · 0 OOS
  • 393.207 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance1 · 0 OOS
  • 393.51 Brake warning devicesVehicle Maintenance1 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1 · 1 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 15 inspections — a clean logging history.

Crash history· 17 total · 2 in 24 mo

17
Total crashes
2
In last 24 mo
0
Fatal
7
Injury
YearCrashesFatalInjuryTow
20261001
20251001
20221011
20171011
20161011
20151001
20123023
20101001
20091011
20071001
20061001
20052011
20031001
19981001
DateStateFatalitiesInjuriesTow-away
May 22, 2026LA00Yes
Jun 24, 2025LA00Yes
Nov 21, 2022LA01Yes
May 3, 2017LA01Yes
Oct 4, 2016LA01Yes
May 14, 2015LA00Yes
Sep 16, 2012LA01Yes
Sep 16, 2012LA01Yes
Feb 9, 2012LA00Yes
May 14, 2010LA00Yes
Sep 10, 2009LA02Yes
Mar 20, 2007LA00Yes
Aug 2, 2006LA00Yes
Aug 3, 2005LA01No
Jun 15, 2005LA00Yes
Aug 6, 2003LA00Yes
Mar 17, 1998LA00Yes