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VALIDATED

DIAMOND MATERIALS LLC

Trust Score

87 Excellent
Excellent Why this score?
Company CheckDIAMOND MATERIALS LLC · DOT 45597
924 S HEALD ST, WILMINGTON, DE, 19801
DOT# 45597 MC# 76472 Wilmington, Delaware 44 years
CARRIER
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139
Power Units
117
Drivers
7
Crashes (24-Month)
$1,000,000
Insurance
Conditional
Safety Rating
204
Inspections
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Public record

8 events tracked · latest Sep 8, 2026 Show details
Safety & compliance 7
  • Aug 3, 2026
    Roadside inspection, 1 violation (no OOS).
  • Aug 3, 2026
    Clean roadside inspection, no violations.
  • Jul 23, 2026
    Clean roadside inspection, no violations.
  • Jul 22, 2026
    Clean roadside inspection, no violations.
  • Apr 20, 2026
    Crash reported (no fatalities).
  • Apr 13, 2026
    Crash reported (no fatalities).
  • Aug 27, 2025
    Crash reported (no fatalities).
Insurance 1
  • Current
    Active insurance on file ($1,000,000).
Public FMCSA record · blue clean · orange change · red risk.

Company Information

Legal NameDIAMOND MATERIALS LLC
DOT Number45597
MC Number76472
Entity TypeCarrier
Operating StatusA - Active
LocationWilmington, Delaware
Added06/01/1974
MCS-15007/02/2025

Contact Details

Physical Address924 S HEALD ST, WILMINGTON, DE, 19801
Mailing Address242 N JAMES ST SUITE 102, NEWPORT, DE, 19804

Other Companies at This Address

Address924 S HEALD ST, WILMINGTON, DE 19801
This looks like a commercial registered-agent / virtual office address. Sharing such an address is legal and common, many legitimate carriers use a registered agent for mail, insurance and compliance. It is not by itself a sign of any problem.
1
Others here
2
Distinct phones
1
Active
CompanyDOTPhoneStatus
DIAMOND MATERIALS LLC this company45597Sign inActive
MATERIAL TRANSIT INC64841Sign inInactive
Note: sharing an address is legal and common (registered agents, virtual offices, business centers). A shared address never reduces the Trust Score.

Operating Authorities

Authority TypePRIVATE PROPERTY;AUTHORIZED FOR HIRE
Carrier OperationA - Interstate
DocketMC076472
CommonActive
ContractNot Active
BrokerNot Active
Operating44 years

All Docket Numbers

MC76472

Cargo Transported

Logs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsLiquids/GasesGarbage, Refuse, TrashChemicalsCommodities Dry BulkConstruction

Operation Classification

Authorized For HirePrivate (Property) Hazardous Materials

SMS BASIC Scores

FMCSA safety categories, last 24 months. Above Cutoff = FMCSA flags a problem · Below cutoff = within limits · Clean = no violations.
Unsafe Driving
measure .79 · 12 insp with violations
Below cutoff
Hours-of-Service Compliance
measure 0 · 0 insp with violations
Clean
Driver Fitness
measure .23 · 5 insp with violations
Below cutoff
Controlled Substances / Alcohol
measure 0 · 0 insp with violations
Clean
Vehicle Maintenance
measure 1.65 · 22 insp with violations
Below cutoff
Source: FMCSA SMS, updated monthly.

Mileage

Annual Mileage676,737 miles
Mileage Year2025
VMT SourceMCS-150 Form

Drivers

117
Interstate
0
Intrastate
0
CDL
117
Total
Interstate >100mi0
Interstate <100mi0
Intrastate >100mi0
Intrastate <100mi0

Equipment

No equipment breakdown on file with FMCSA.

HazMatYes

Safety Summary

Safety RatingConditional
Total Crashes (24-mo)7
Fatal0
Driver OOS2.5% avg 5.5%
Vehicle OOS10.8% avg 20.7%
SmartWay PartnerNo
Last Review09/26/2022

Insurance

Amount$1,000,000
Type91X
VerifiedFMCSA · 07/08/2026
CompanyARCH INSURANCE COMPANY
Policy #ZACAT9130400
Last checked09/07/2026

Quick Facts

StatusActive
TypeCarrier
Fleet139 units
Drivers117
Mileage676,737 mi
Operating44 years
MCS-15007/2025

Safety & Inspection Data

Crash Summary
Total Crashes (24-mo)7
Fatal0
Injury5
Tow-Away2
Safety RatingConditional
Driver Inspections
Total121
Out of Service3
OOS Rate2.5%
National Avg5.5%
Below National Average
Vehicle Inspections
Total83
Out of Service9
OOS Rate10.8%
National Avg20.7%
Below National Average
HazMat Inspections
Total9
OOS0
OOS Rate0.0% (avg 4.5%)
Last FMCSA Review: 09/26/2022 | Rated: 05/26/1988

Safety Trends by Year

Roadside inspections and crashes on file, year over year. The red portion of each inspection bar is the out-of-service share; ▲/▼ compares to the prior year.

Inspections · red = OOS
2023
22 · 2 OOS -
2024
62 · 5 OOS
2025
50 · 4 OOS
2026
50 · 6 OOS
Crashes
2023
0 crashes -
2024
2 crashes
2025
5 crashes
2026
2 crashes
Based on FMCSA crash and roadside inspection records (rolling 3-year window). The latest year may be partial.

Out-of-Service Summary Last 24 months

Live FMCSA roadside inspections through Aug 2026, 127 inspections, 10 resulted in out-of-service (7.9% OOS rate).

Driver Out-of-Service 3 OOS
Vehicle Out-of-Service 11 OOS
Live FMCSA roadside inspection records, refreshed monthly.

Crash Records (9)

Full crash history on file (all years), newest first. This list may show more than the headline Crashes figure above, because that figure follows the official FMCSA 24-month SMS window used for the Trust Score, older crashes still appear here for transparency.
DateLocationStateFatalInjuriesTowVehiclesWeatherRoadLight
04/20/2026 NORTH EAST MD 0 0 1 2 Clear Dry Daylight
04/13/2026 QUINTON TWP NJ 0 0 1 2 Clear Dry Daylight
08/27/2025 ELKTON MD 0 0 1 2 Clear Dry Daylight
06/09/2025 NEWPORT DE 0 2 1 2 Freezing Rain Dry Daylight
04/24/2025 ELK TWP NJ 0 1 1 1 Clear Dry Dawn
02/18/2025 HAMILTON TWP NJ 0 0 1 2 Clear Dry Daylight
02/18/2025 UPPER PITTSGROVE TWP NJ 0 1 1 2 Blowing Snow Dry Dark - Not Lighted
11/12/2024 STRASBURG TOWNSHIP PA 0 1 1 1 Severe Crosswinds Dry Daylight
11/12/2024 MIDDLETOWN DE 0 1 1 3 Clear Dry Dusk

Roadside Violations by Safety Category Last 24 months

78 roadside violations across 127 inspections, grouped into FMCSA safety-behavior categories. The shaded portion shows how many were serious enough to result in an out-of-service order.

ViolationsOut-of-service
Unsafe Driving 36 violations · 0 OOS
Vehicle Maintenance 34 violations · 11 OOS
Driver Fitness 7 violations · 5 OOS
Other (General) 1 violation · 0 OOS
Categories follow FMCSR violation parts (Part 393/396 = Vehicle Maintenance, Part 395 = HOS; "Other" = general/administrative parts such as 390). Raw violation counts and out-of-service results, not FMCSA percentile rankings, which are not published for property carriers.

Inspection Records (100)

DateStateLevelLocationViolationsOOSDriver ViolDriver OOSVehicle ViolVehicle OOSHazMat
08/03/2026 NJ Driver-Only (Level III) NJ 1 0 1 0 0 0 - Detail
08/03/2026 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
07/23/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
07/22/2026 DE Walk-Around (Level II) TOWNSEND DE 0 0 0 0 0 0 - Detail
07/17/2026 DE Walk-Around (Level II) LINCOLN DE 1 0 1 0 0 0 - Detail
07/15/2026 NJ Walk-Around (Level II) NJ 1 0 0 0 1 0 - Detail
07/10/2026 MD Walk-Around (Level II) PERRYVILLE MD 5 3 0 0 5 3 - Detail
07/01/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/30/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/30/2026 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
06/30/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
06/25/2026 DE Walk-Around (Level II) TOWNSEND DE 1 0 0 0 1 0 - Detail
06/17/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/16/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/16/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/15/2026 DE Driver-Only (Level III) DOVER DE 1 0 1 0 0 0 - Detail
06/11/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
06/05/2026 MD Full (Level I) DARLINGTON MD 1 0 0 0 1 0 - Detail
06/02/2026 NJ Full (Level I) NJ 0 0 0 0 0 0 - Detail
06/01/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
05/26/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
05/15/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
05/12/2026 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
05/11/2026 DE Driver-Only (Level III) NEW CASTLE DE 0 0 0 0 0 0 - Detail
05/08/2026 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
05/06/2026 DE Driver-Only (Level III) NEWARK DE 0 0 0 0 0 0 - Detail
05/06/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
05/04/2026 MD Walk-Around (Level II) PERRYVILLE MD 2 2 0 0 2 2 - Detail
04/21/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
04/14/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
04/14/2026 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
04/01/2026 DE Driver-Only (Level III) DOVER DE 1 0 1 0 0 0 - Detail
03/26/2026 MD Full (Level I) DARLINGTON MD 0 0 0 0 0 0 - Detail
03/26/2026 MD Full (Level I) DARLINGTON MD 1 0 0 0 1 0 - Detail
03/13/2026 MD Full (Level I) DARLINGTON MD 1 1 1 1 0 0 - Detail
03/09/2026 MD Full (Level I) DARLINGTON MD 2 1 0 0 2 1 - Detail
03/09/2026 MD Full (Level I) DARLINGTON MD 5 1 0 0 5 1 - Detail
03/09/2026 MD Full (Level I) DARLINGTON MD 0 0 0 0 0 0 - Detail
03/06/2026 MD Full (Level I) DARLINGTON MD 0 0 0 0 0 0 - Detail
02/27/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/27/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/19/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/19/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/19/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/19/2026 NJ Walk-Around (Level II) NJ 0 0 0 0 0 0 - Detail
02/18/2026 MD Walk-Around (Level II) ELKTON MD 1 0 1 0 0 0 - Detail
02/09/2026 DE Driver-Only (Level III) NEWARK DE 0 0 0 0 0 0 - Detail
02/05/2026 MD Walk-Around (Level II) ELKTON MD 0 0 0 0 0 0 - Detail
02/02/2026 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
01/14/2026 NJ Full (Level I) NJ 1 1 0 0 1 1 - Detail
12/24/2025 DE Driver-Only (Level III) FREDERICA DE 1 0 1 0 0 0 - Detail
12/23/2025 NJ Driver-Only (Level III) NJ 0 0 0 0 0 0 - Detail
12/22/2025 NJ Full (Level I) NJ 1 0 0 0 1 0 - Detail
12/02/2025 NJ Full (Level I) RT 206 @ 30 0 0 0 0 0 0 - Detail
12/01/2025 DE Walk-Around (Level II) TOWNSEND DE 0 0 0 0 0 0 - Detail
12/01/2025 DE Walk-Around (Level II) TOWNSEND DE 0 0 0 0 0 0 - Detail
11/28/2025 NJ Driver-Only (Level III) ROADSIDE 4 2 3 2 1 0 - Detail
11/26/2025 NJ Full (Level I) 2700 HAMILTON BLVD. SO. PLAIN 1 0 0 0 1 0 - Detail
11/25/2025 DE Driver-Only (Level III) TOWNSEND DE 1 0 1 0 0 0 - Detail
11/03/2025 NJ Walk-Around (Level II) US538/US694 1 0 0 0 1 0 - Detail
10/20/2025 DE Walk-Around (Level II) DOVER DE 0 0 0 0 0 0 - Detail
10/17/2025 NJ Full (Level I) FOLSOM 1 0 0 0 1 0 - Detail
10/08/2025 NJ Full (Level I) CARNEYS POINT SCALE 2 0 0 0 2 0 - Detail
09/26/2025 MD Walk-Around (Level II) PERRYVILLE MD 0 0 0 0 0 0 - Detail
09/25/2025 NJ Full (Level I) SH38 E / HAINESPORT MT LAUREL 2 0 1 0 1 0 - Detail
09/08/2025 DE Full (Level I) MIDDLETOWN DE 0 0 0 0 0 0 - Detail
08/22/2025 NJ Walk-Around (Level II) ROADSIDE 0 0 0 0 0 0 - Detail
08/19/2025 DE Walk-Around (Level II) MIDDLETOWN DE 0 0 0 0 0 0 - Detail
08/18/2025 MD Driver-Only (Level III) PERRYVILLE MD 1 0 0 0 0 0 - Detail
08/14/2025 NJ Full (Level I) CARNEY'S POINT SCALE 0 0 0 0 0 0 - Detail
08/13/2025 MD Walk-Around (Level II) WARWICK MD 0 0 0 0 0 0 - Detail
07/22/2025 NJ Walk-Around (Level II) US 322 AND SH 50 1 0 0 0 1 0 - Detail
07/21/2025 NJ Walk-Around (Level II) CR 694 / CR 538 1 1 0 0 1 1 - Detail
07/07/2025 DE Driver-Only (Level III) MIDDLETOWN DE 0 0 0 0 0 0 - Detail
07/01/2025 DE Driver-Only (Level III) NEW CASTLE DE 0 0 0 0 0 0 - Detail
06/21/2025 NJ Driver-Only (Level III) CARNEYS POINT 1 0 1 0 0 0 - Detail
06/20/2025 MD Walk-Around (Level II) NORTH EAST MD 0 0 0 0 0 0 - Detail
06/16/2025 NJ Walk-Around (Level II) US 322 / SH 55 2 1 0 0 2 1 - Detail
05/21/2025 NJ Driver-Only (Level III) CARNEYS POINT SCALE 0 0 0 0 0 0 - Detail
05/13/2025 NJ Driver-Only (Level III) CARNEYS POINT SCALE 0 0 0 0 0 0 - Detail
05/12/2025 NJ Walk-Around (Level II) WESTVILLE 0 0 0 0 0 0 - Detail
05/02/2025 NJ Walk-Around (Level II) CARNEYS POINT SCALE 0 0 0 0 0 0 - Detail
05/01/2025 DE Driver-Only (Level III) MIDDLETOWN DE 1 0 0 0 0 0 - Detail
04/14/2025 DE Walk-Around (Level II) MIDDLETOWN DE 0 0 0 0 0 0 - Detail
04/11/2025 DE Driver-Only (Level III) FREDERICA DE 1 0 0 0 0 0 - Detail
04/01/2025 NJ Walk-Around (Level II) CR-551 @ RT-48 2 0 0 0 2 0 - Detail
04/01/2025 NJ Walk-Around (Level II) CARNEYS POINT 0 0 0 0 0 0 - Detail
04/01/2025 NJ Walk-Around (Level II) CARNEYS POINT 0 0 0 0 0 0 - Detail
03/31/2025 NJ Driver-Only (Level III) TRENTON TUNNEL 1 0 1 0 0 0 - Detail
03/27/2025 NJ Full (Level I) US206/TUCKERTON RD 4 1 2 0 2 1 - Detail
03/20/2025 NJ Walk-Around (Level II) CARNEYS POINT 2 0 0 0 2 0 - Detail
03/20/2025 NJ Full (Level I) CARNEYS POINT SCALE 1 0 0 0 1 0 - Detail
03/19/2025 NJ Walk-Around (Level II) RT 40 MP 2.5 0 0 0 0 0 0 - Detail
02/28/2025 DE Walk-Around (Level II) MIDDLETOWN DE 0 0 0 0 0 0 - Detail
02/17/2025 NJ Walk-Around (Level II) 168 @ NJTP TOLL 3 0 0 0 0 0 0 - Detail
02/11/2025 NJ Walk-Around (Level II) US 130 AND PROMENADE BLVD 0 0 0 0 0 0 - Detail
01/16/2025 NJ Driver-Only (Level III) CARNEYS POINT SCALE 0 0 0 0 0 0 - Detail
01/02/2025 NJ Driver-Only (Level III) I-295/US40 0 0 0 0 0 0 - Detail
01/02/2025 NJ Driver-Only (Level III) I-295/US40 0 0 0 0 0 0 - Detail
01/02/2025 NJ Driver-Only (Level III) I-295/US40 0 0 0 0 0 0 - Detail
Detailed Inspection Report

Safety Performance Percentiles

FMCSA SMS percentile rankings. Higher percentile = worse performance relative to peers.

Total Inspections131
Unsafe Driving 12 viols
Driver Fitness 5 viols
Vehicle Maintenance 22 viols

Licensing & Insurance

FormTypeInsurance CompanyPolicyCoverageEffectiveCancel DateMethod
34CARGOSELECTIVE WAY INSURANCE COMPANYSW-3207682$005/23/199702/02/2007Cancelled
91BIPDMARYLAND CASUALTY CO.CA29414715$004/01/198807/23/2008Cancelled
34CARGOPENNSYLVANIA MANUF. ASSOC. INS.8187005532585$004/01/198701/13/1995Cancelled
34CARGOSELECTIVE INSURANCE COMPANY OF AMERICASW-3207682$001/13/199505/23/1997Replaced

No active insurance policies.

DocketTypeActionServedDispositionDisp Date
MC076472MOTOR PROPERTY COMMON CARRIERGRANTED05/26/1982REVOKED02/12/2007
MC076472COMMONINVOLUNTARY REVOCATION05/12/2023DISCONTINUED REVOCATION06/20/2023
MC076472MOTOR PROPERTY COMMON CARRIERREINSTATED02/15/2012--
MC076472COMMONINVOLUNTARY REVOCATION01/13/1995DISCONTINUED REVOCATION02/21/1995

No revocation records.

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