DIAMOND MATERIALS, LLC

DOT# 45597 MC# 76472CARRIER

ACTIVE

Trust Score

93 / 100

A Excellent

Components

Compliance · 40% 100

Safety · 35% 90

Insurance · 25% 85

No active cargo insurance on file

Confidence: high · based on FMCSA safety, insurance & authority data How is this calculated?

Overview

Address

Physical

924 S HEALD ST

WILMINGTON, DE 19801

View on Google Maps ↗

Mailing

242 N JAMES ST SUITE 102

NEWPORT, DE 19804

Contact

Phone: (302) 658-6524

Fax: (302) 658-0684

Email: diamondMATERIALS@DIAMONDMATERIALS.COM

Company Officers

RICHARD E. PIERSON, JR

TONI WOOD

Business Info

Organization: CORPORATION

D&B #: 884222167

HazMat: HazMat Carrier

Fleet

139

Power Units

117

Drivers

Equipment Breakdown

Owned Trucks117

Owned Tractors19

Authority

Status: ACTIVE

FMCSA add date: Jun 1, 1974

MCS-150

Last updated: Jul 2, 2025

Mileage: 676,737 (2025)

Operation Classification

PRIVATE PROPERTYAUTHORIZED FOR HIRE

Carrier Operation

Interstate

Related Companies

Company	DOT#	MC#	Location	Status	Linked By
TRI COUNTY MATERIALS LLC	4027454	1520690	NEWPORT, DE	ACTIVE	DomainPhone

Safety

Out-of-Service Rates

Driver125 inspections

2.4%

6.0%

Carrier National avg

Vehicle85 inspections

11.8%

22.6%

Carrier National avg

Hazmat5 inspections

0.0%

2.3%

Carrier National avg

Crash Summary

Fatal

Injury

7.0

per 1M miles

Towaway

Total

BASIC Violations

Unsafe Driving32

Driver Fitness6

Hours of Service0

Drug / Alcohol0

Vehicle Maintenance32

Insurance

$1,000,000

BIPD Coverage

—

Cargo Coverage

1 policy on file1 active

Type	Status	Insurer	Policy #	Coverage	Effective	Expires	Form
BIPD	Active	ARCH INSURANCE COMPANY	ZACAT9130400	$1,000,000	Jan 1, 2012	—	91X

Get this data via API

API Reference

curl https://api.dotlookup.dev/v1/carriers/45597