License Plate IA FP4928 (Iowa) — Portzen Construction Inc
USDOT 459139 · 2022 Western Star 4700
Most recently recorded carrier for this plate
Portzen Construction Inc Active
- USDOT
- 459139
- MC
- 307464
- Status
- Active
- Type
- Motor Carrier
- Based in
- Dubuque, IA
- Power units
- 75
- Drivers
- 120
- Inspections (24 mo)
- 11
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 30%
Carrier recorded at the latest inspection in the available records (2025-08-13). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.
What this means
License plate IA-FP4928 appears in FMCSA inspection records 1 time. Recorded on one vehicle: VIN 5KJJAVFM0NPNA4926 (2022 Western Star 4700). Most recent operating carrier: Portzen Construction Inc (USDOT 459139). Vehicle make on file: Western Star (WESTERN ST) (TRUCK TRACTOR). No out-of-service violations are recorded under this plate in the available inspection records. Other violations may still be present.
About this plate
Commercial license plate IA-FP4928 (Iowa) appears in FMCSA roadside inspection records tied to one commercial vehicle. The most recent inspection activity under this plate was 2025-08-13. The latest inspection was in Wisconsin, a Level II — walk-around inspection of the driver and the vehicle. That is outside the plate's issuing jurisdiction (Iowa).
Vehicle on this plate
This plate is associated with a single vehicle, a 2022 Western Star 4700 — VIN 5KJJAVFM0NPNA4926 (truck tractor).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 1 inspection on FMCSA record. No out-of-service violations appear in the available records under this plate. This does not mean that every inspection was free of other violations. The leading violation category is Vehicle Maintenance (2). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operators
Operated by Portzen Construction Inc (USDOT 459139) in every inspection on record.
Vehicle detail (inspections per unit)
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 2 | ! Moderate |
| Unsafe Driving | 0 | ✓ Clean |
| Driver Fitness | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |