Superior Bulk Inc
USDOT 2325622 · MC-951261 · Mayer, Arizona · Interstate for-hire carrier · 50–99 power units
Superior Bulk Inc is a company based in Mayer, Arizona, registered with the FMCSA as an interstate carrier (authorized for hire). It reports 96 power units and 125 drivers, which ranks it #73 by fleet size among 134 active for-hire carriers with 50+ power units headquartered in Arizona. In the 24 months to Sep 24, 2026 its trucks were inspected 67 times – about 0.7 inspections per power unit. 18.5% of vehicle inspections and 1.5% of driver inspections ended with an out-of-service order, against 20.5% and 3.3% for carriers of the same size nationally. FMCSA records 12 reportable crashes in the last 24 months (4 injuries, 0 fatalities, 11 tow-away), or 12.5 per 100 power units versus 4.8 for its size band. Crash counts in FMCSA data do not indicate fault. Its registered cargo types are building materials, commodities dry bulk, construction.
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Registration and contact
| Legal name | Superior Bulk Inc |
|---|---|
| DBA name | — |
| USDOT number | 2325622 |
| Operating authority (docket) | MC-951261 |
| Entity type | Authorized for Hire |
| Operation | Interstate |
| Business type | — |
| Physical address | 14325 S Cross L Road, Mayer, AZ 86333 |
| Phone | (602) 585-9006 |
| First registered | Jul 18, 2012 |
| Last MCS-150 update | Mar 23, 2026 |
| Hazmat carrier | No |
Check live authority, insurance and out-of-service status: FMCSA SAFER snapshot for USDOT 2325622.
Fleet and drivers
| Equipment | Owned | Term-leased | Trip-leased |
|---|---|---|---|
| Straight trucks | 7 | 0 | 0 |
| Truck tractors | 89 | 0 | 0 |
| Trailers | 96 | 0 | 0 |
- 1.30 drivers per power unit (national median for 50+ unit fleets: 0.99) – suggests team driving, slip-seating or multiple shifts.
- 1.1 trailers per tractor.
- 8,400,000 miles reported for 2025 – about 87,500 miles per power unit vs a 38,151 median for 50–99-unit fleets.
- 100% of listed equipment is owned rather than leased.
- 125 CDL drivers; 10 drivers operate interstate beyond 100 miles, 0 within 100 miles.
Safety record
Roadside inspections Sep 25, 2024 – Sep 24, 2026; crashes Nov 1, 2024 – Oct 31, 2026. Benchmarks: 50–99-unit for-hire carriers nationally (5,500) and Arizona carriers with 50+ units (134).
| Measure | Superior Bulk Inc | Same size, US | AZ average | |
|---|---|---|---|---|
| Vehicle out-of-service rate | 18.5% | 20.5% | 18.8% | about average |
| Driver out-of-service rate | 1.5% | 3.3% | 1.3% | 55% lower than average |
| Crashes per 100 power units | 12.5 | 4.8 | 4.5 | 163% higher than average |
| Inspections | 67 | 67 with a driver check, 54 with a vehicle check, 73 BASIC violations recorded | ||
| FMCSA safety rating | Not rated – most carriers have never had a compliance review; this is not a negative finding. | |||
Cargo carried
Similar carriers in Arizona
Closest fleet size and cargo mix among Arizona carriers in this directory.
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| D L Campbell Co USDOT 1731208 | Lake Havasu City | 86 | 65 | 11 | 12.5% | 0 |
| Desert Ready Mix LLC USDOT 2517747 | Mesa | 85 | 104 | 10 | 22.2% | 0 |
| Harvey Trucking Inc USDOT 468159 | Tucson | 77 | 42 | 17 | 53.3% | 2 |
| Zip Delivery Services LLC USDOT 4151097 | Tucson | 100 | 100 | 21 | 20.0% | 0 |
| Solar Industries Inc USDOT 524112 | Tucson | 82 | 41 | 52 | 12.5% | 0 |
| Rutherford Diversified Industries Inc USDOT 663062 | Sierra Vista | 81 | 81 | 12 | 33.3% | 0 |
Other carriers near Mayer
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| Fann Contracting Inc USDOT 1165845 | Prescott | 131 | 56 | 21 | 21.1% | 2 |
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FAQ
What is the USDOT number of Superior Bulk Inc?
Superior Bulk Inc is registered with USDOT number 2325622 and operating authority MC-951261.
How many trucks does Superior Bulk Inc have?
It reports 96 power units (89 tractors, 7 straight trucks) and 96 trailers, with 125 drivers, on its last MCS-150 update (Mar 23, 2026).
Where is Superior Bulk Inc located?
Its registered physical address is in Mayer, Arizona 86333.
What is the out-of-service rate of Superior Bulk Inc?
Over 24 months, 18.5% of vehicle inspections and 1.5% of driver inspections resulted in an out-of-service order (same-size national average: 20.5% vehicle, 3.3% driver).
Source: FMCSA Company Census File, SMS inspection file and Crash File (data.transportation.gov), refreshed 2026-11-04. Figures are as reported to FMCSA and may lag. How we calculate these numbers. Spotted an error? Carriers update their record with FMCSA via the MCS-150 form; see corrections.