CALMAT CO

AUTHORIZED

DBA: VULCAN MATERIALS COMPANY SHAMROCK MATERIALS INC

16013 E FOOTHILL BLVD, IRWINDALE, CA, 91702|(626) 633-2421

USDOT

1024955

MC Number

N/A

Fleet Size

89

Total Drivers

89

Last updated: March 15, 2026

Safety overview

CALMAT CO is a mid-size interstate motor carrier based in IRWINDALE, California, operating 89 power units with 89 drivers. 1 of their 5 BASIC scores sits above the 75th percentile intervention threshold. The rest fall within acceptable ranges. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. They have 1 crash on file (1 with injuries). FMCSA records show 48 inspections for this carrier.

BASIC scores

SMS Percentiles

Higher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.

Unsafe Driving
0%
HOS / Fatigue
82%
👤Driver Fitness
0%
Controlled Substances
0%
🔧Vehicle Maintenance
67%

Out-of-service rates vs. national average

An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.

Driver OOS rate0.0%
National average5.5%
Vehicle OOS rate2.5%
National average20.7%

For reference, the average driver OOS rate in California is 8.9% and the average vehicle OOS rate is 22.4% across 312,857 carriers.

Company details

Entity Type
N/A
Carrier Operation
Interstate
Operation Classification
Private (Property)
Cargo Carried
N
Hazmat
Yes
Safety Rating Date
N/A

What are BASIC scores?

FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.

A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.

Unsafe driving
Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
HOS / Fatigue
Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
Driver fitness
Licensing problems, expired medical certificates, and other driver qualification issues.
Controlled substances
Drug and alcohol testing violations, possession, or impairment.
Vehicle maintenance
Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
Crash indicator
Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.

Inspections

48

Total

51%

Driver %

Driver Inspections42
Vehicle Inspections40
Driver OOS Rate0.0%
Vehicle OOS Rate2.5%

Crash history

1

Total Crashes

Fatal Crashes0
Injury Crashes1
Tow Crashes1

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Frequently asked questions

Is CALMAT CO authorized to operate?

Yes. CALMAT CO (USDOT #1024955) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.

What is CALMAT CO's safety record?

CALMAT CO has 1 BASIC score above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.

How many trucks does CALMAT CO operate?

CALMAT CO operates 89 power units with 89 drivers on file. That puts them in the mid-size range.

Does CALMAT CO transport hazardous materials?

Yes. CALMAT CO is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.

Where is CALMAT CO located?

CALMAT CO is based in IRWINDALE, California at 16013 E FOOTHILL BLVD, 91702. Phone: (626) 633-2421.

What are CALMAT CO's out-of-service rates?

CALMAT CO's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 2.5% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.