SUPERIOR BULK INC
AUTHORIZEDUSDOT
2325622
MC Number
951261
Fleet Size
77
Total Drivers
94
Last updated: March 11, 2026
Safety overview
SUPERIOR BULK INC is a mid-size interstate motor carrier based in MAYER, Arizona, operating 77 power units with 94 drivers. Their safety profile raises flags: 4 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 1.6% comes in under the 5.51% national average. They have 11 crashes on file (1 fatal, 5 with injuries). FMCSA records show 62 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
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.
For reference, the average driver OOS rate in Arizona is 12.4% and the average vehicle OOS rate is 26.7% across 29,008 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- 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
62
Total
58%
Driver %
Crash history
11
Total Crashes
Need trucking insurance?
Compare quotes from commercial truck insurers. Liability, cargo, physical damage coverage and more.
Get quotes (coming soon)Similar carriers in Arizona
Other carriers in the same state with a similar fleet size.
UNISOURCE ELECTRIC INC
HARVEY TRUCKING INC
DIAMOND TRUCKING INC
YOUNGER BROTHERS DOOR AND TRIM LLC
EARTH RESOURCES CORPORATION
Frequently asked questions
Is SUPERIOR BULK INC authorized to operate?
Yes. SUPERIOR BULK INC (USDOT #2325622) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SUPERIOR BULK INC's safety record?
SUPERIOR BULK INC has 4 BASIC scores 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 SUPERIOR BULK INC operate?
SUPERIOR BULK INC operates 77 power units with 94 drivers on file. That puts them in the mid-size range.
Does SUPERIOR BULK INC transport hazardous materials?
No. SUPERIOR BULK INC does not have a hazardous materials flag in the FMCSA database.
Where is SUPERIOR BULK INC located?
SUPERIOR BULK INC is based in MAYER, Arizona at 14325 S CROSS L ROAD, 86333. Phone: (602) 585-9006.
What are SUPERIOR BULK INC's out-of-service rates?
SUPERIOR BULK INC's driver out-of-service rate is 1.6%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 18.2% (national average: 20.72%).