Carrier profile · USDOT 4176000 · Updated Sep 6, 2026

Diamond Construction & Waterproofing Inc

0 power unitsLocal · 1 statesSUN VALLEY, CA50/100
AUTHORITY STATUS UNKNOWN
Verified linksecodiamondrolloff.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 50.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 3 vehicle and 4 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

4 inspections in the charted months · busiest month Aug '26 · 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.

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 Driving2 · 1 OOS
  • 383.23 Operating without a valid CDLDriver Fitness1 · 1 OOS
  • 383.91 Commercial Driver's License (CDL)Driver Fitness1 · 1 OOS

ELD & hours-of-service

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