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Freight Carrier · Dubuque, IA

PORTZEN CONSTRUCTION INC

205 STONE VALLEY DRIVE · Dubuque, IA 52003

AUTHORIZED FOR:
(563) 557-7642 Tap to call
  • MC #307464
  • USDOT #459139 USDOT Active
  • 75
    Power Units
  • 120
    Drivers
  • Carrier
    Entity Type

About this carrier

PORTZEN CONSTRUCTION INC is a Dubuque, IA freight carrier that is authorized for: in the state of Iowa. This company has 75 truck(s) in their fleet and 120 truck drivers. Their motor carrier number is MC-307464 and their USDOT number is 459139.

Sourced from FMCSA SAFER · last filed 05/28/2025 · last updated Jun 28, 2026.

Carrier Details

  • Operating Status AUTHORIZED FOR:
  • MCS-150 Filed 05/28/2025
  • MCS-150 Mileage 1,760,000 (2024)

Authority & Operations

Operation Classification
  • Authorized for Hire
  • Private (Property)
Carrier Operation
  • Interstate

Cargo Authorized

  • Building Materials
  • Machinery, Large Objects
  • Construction

Operating Territory

Map of states where this carrier has roadside inspections Wisconsin — 9 inspections (past 24 months) Iowa — 2 inspections (past 24 months)

Inspection activity   Inspected in 2 states over the past 24 months: WI (9), IA (2). Home base: Dubuque, Iowa.

Safety Record

4 Severe Violations Updated Jul 18, 2026

Crashes (24 mo)

  • 0
    Fatal
  • 0
    Injury
  • 0
    Tow
  • 0
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0.51 5 Crash Indicator Not Public — Hours of Service 0 0 Vehicle Maintenance 6.6 7 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0.23 2

Inspection Summary

  • 11
    Total
  • 1
    Clean
  • 10
    With violations

24-month window ending Jun 26, 2026

Violations Cited 17 unique codes

Critical 5

  • 392.82(a)1Using a hand-held mobile telephone while operating a CMV1× SW 10
  • 393.43D-BBrake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly2× OOS×2 SW 4
  • 393.41-BNPBBrake - Inoperative or missing parking brake on power unit1× OOS×1 SW 4
  • 393.70D-CDTSDNSCoupling - Full Trailer, safety devices not attached/not able to be secured1× OOS×1 SW 3
  • 391.41APCMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency when medical certification is required.1× OOS×1 SW 1

Unsafe Driving 4

  • 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit2× SW 7
  • 392.16Failing to use seat belt while operating a CMV1× SW 7
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other2× SW 5
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit1× SW 4

Vehicle Maintenance 7

  • 396.17C-PIOperating a CMV without documentation of a periodic inspection1× SW 4
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19981× SW 4
  • 393.9A-LILLighting - Identification lamp(s) inoperative3× SW 2
  • 393.95A4-EEUSEmergency Equipment - Fire Extinguishers - unsecured1× SW 2
  • 393.95(f)Emergency Equipment - Stopped vehicle warning devices missing or improper1× SW 2
  • 393.9A-LCLLighting - Clearance lamp(s) inoperative1× SW 2
  • 393.9A-LSMLLighting - Side marker lamp(s) inoperative1× SW 2

Driver Fitness 1

  • 391.41A-MCPCMedical (Certificate) - Operating a commercial motor vehicle without showing proof of a valid medical certification upon request, but presents proof prior to completion of inspection.1× SW 1

Locations

Physical Address
PORTZEN CONSTRUCTION INC
205 STONE VALLEY DRIVE
DUBUQUE, IA 52003
Mailing Address
Same as physical.

Location on Map

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