Hi Grade Materials Co (DOT# 478361 · MC# 661249) – FMCSA Carrier Profile
DOT# 478361MC# 661249● Active
Updated monthly · 2026-03-09
This carrier is active with a Satisfactory safety rating.
Hi Grade Materials Co is a registered motor carrier with the FMCSA under USDOT number 478361. The company operates from Hesperia, CA and maintains an active operating status with 140 power units and 100 drivers on record.
Safety Rating
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Company Information
Address17671 Bear Valley Rd, Hesperia, CA, 92345
Phone(760) 244-9325
Emaillclifton@robar.com
Entity TypeAuthorized For Hire
OperationInterstate
Power Units140(Large carrier)
Drivers100
MCS-150 FiledJanuary 20, 2026
Annual Mileage3,743,484 mi (2025)
Inspection Summary
All-time Inspections
All-time30
Total
7
OOS
0
Driver OOS
7
Vehicle OOS
30 inspections reflects moderate road activity.
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 23.3% — above the national vehicle OOS average of ~21%. Review BASICS scores below.
Crash History
Crash Records
All-time4
Total
0
Fatal
4
Injuries
0
Tow-Away
4 crashes on record. This is within a common range for active carriers — assess relative to fleet size and inspection volume.
BASICS Safety Scores
BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories0.0
Unsafe Driving
Measures violations related to speeding, reckless driving, and improper lane changes.
0.0
HOS Compliance
Tracks hours-of-service violations, including driving beyond legal limits without rest.
0.0
Driver Fitness
Reflects issues with driver qualifications, licenses, and medical certifications.
0.0
Controlled Substances
Captures drug and alcohol violations, including failed or refused tests.
5.5
Vehicle Maintenance
Reflects brake, tire, lighting, and other equipment-related inspection violations.
Scores above 65 (general freight) or 50 (passenger/hazmat) trigger an FMCSA Alert. Higher scores indicate more safety risk. National median is approximately 20–30 for active carriers.
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Frequently Asked Questions
What is USDOT Number 478361?
USDOT number 478361 is assigned to Hi Grade Materials Co, an active motor carrier registered with the FMCSA, based in Hesperia, CA.
What is the safety rating of Hi Grade Materials Co?
Hi Grade Materials Co has a safety rating of Satisfactory as of April 7, 2003.
How many inspections has Hi Grade Materials Co had?
Hi Grade Materials Co has recorded 30 total inspections with 7 out-of-service orders, representing an OOS rate of 23.33%.
Where is Hi Grade Materials Co located?
Hi Grade Materials Co is headquartered at 17671 Bear Valley Rd, Hesperia, CA 92345.
What does "Not Rated" mean?
"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.
Is zero crashes always a good sign?
Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.
What is a normal OOS rate?
The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.
How often is FMCSA data updated?
FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.
What is the MC number for Hi Grade Materials Co?
The MC number for Hi Grade Materials Co is MC# 661249. The MC number is issued by the FMCSA and authorizes carriers to operate in interstate commerce.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 478361 · Last updated: 2026-03-09. View official FMCSA record →