Data / Carriers / Delaware / Diamond Materials LLC
Diamond Materials LLC, Wilmington, DE: USDOT 45597, 139 power units, 124 inspections, 9 crashes
Diamond Materials LLC (USDOT 45597) is an interstate carrier in Wilmington, DE, registered with FMCSA with 139 power units and 117 drivers as it reports them. FMCSA recorded 124 roadside inspections from November 7, 2024 to November 7, 2026, the latest on November 4, 2026. Its vehicle out of service rate was 9.2% against 22.9% for all carriers (8 of 87 vehicle inspections). The states reported 9 crashes in the same period, with 0 deaths and 6 injuries.
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- USDOT number
- 45597
- Location
- 924 S Heald ST, Wilmington, DE 19801
- Phone
- (302) 658 6524
- Operation
- Interstate; private property, for hire
- Docket
- MC 76472
- Operating authority
- Active common carrier authority for property
- Liability insurance on file
- $1,000,000 (bodily injury and property damage)
- Power units
- 139
- Drivers
- 117 (117 with a commercial licence)
- Miles reported
- 676,737 in 2025
- Cargo carried
- Logs, poles, beams and lumber, Building materials, Machinery and large objects, Liquids and gases, Garbage, refuse and trash, Chemicals, Dry bulk commodities
- Hazardous materials
- Yes, as the carrier reports
- Compliance review rating
- Conditional (May 26, 1988)
- Last registration update
- July 2, 2025
- In the FMCSA register since
- June 1, 1974
- FMCSA safety measurement page
- ai.fmcsa.dot.gov
Inspections and out of service rates
Roadside inspections from November 7, 2024 to November 7, 2026. The national rate is the rate across every carrier in the same window.
| Measure | Inspections | Out of service | Rate | National rate | Against national |
|---|---|---|---|---|---|
| Vehicle inspections | 87 | 8 | 9.2% | 22.9% | 13.7 points below the national rate |
| Driver inspections | 124 | 3 | 2.4% | 6.3% | 3.9 points below the national rate |
| All inspections, any out of service order | 124 | 11 | 8.9% | 19.4% |
Crashes
9 crashes reported from November 7, 2024 to November 7, 2026.
| Date | City | State | Deaths | Injuries | Towed away |
|---|---|---|---|---|---|
| April 20, 2026 | North East | MD | 0 | 0 | Yes |
| April 13, 2026 | Quinton TWP | NJ | 0 | 0 | Yes |
| August 27, 2025 | Elkton | MD | 0 | 0 | Yes |
| June 9, 2025 | Newport | DE | 0 | 2 | Yes |
| April 24, 2025 | Elk TWP | NJ | 0 | 1 | Yes |
| February 18, 2025 | Upper Pittsgrove TWP | NJ | 0 | 1 | Yes |
| February 18, 2025 | Hamilton TWP | NJ | 0 | 0 | Yes |
| November 12, 2024 | Middletown | DE | 0 | 1 | Yes |
| November 12, 2024 | Strasburg Township | PA | 0 | 1 | Yes |
The carrier's full record on the FMCSA safety measurement page
Also on SpecStream
- Carriers in Delaware
- Carriers in Wilmington, DE
- Logs, poles, beams and lumber carriers in Delaware
- Building materials carriers in Delaware
- Machinery and large objects carriers in Delaware
Updated November 7, 2026. Read from US Department of Transportation, FMCSA Motor Carrier Census, Inspection, Crash and Licensing files. Public domain (U.S. government work). Inspection and crash counts cover November 7, 2024 to November 7, 2026. Fleet size, drivers, cargo and operation are as each carrier reports them to FMCSA and can be out of date. A vehicle or driver out of service order means an inspector ordered the vehicle or driver off the road until the problem was fixed. The national rate comes from every inspection in the same window. Crashes are those state police reported to FMCSA and are not a finding of fault. This page uses US Department of Transportation data and is not endorsed or certified by the Department of Transportation or FMCSA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.