Portzen Construction Inc

USDOT activeAuthority activeCarrier · Interstate
  • USDOT459139
  • MC307464
  • LocationDubuque, IA
  • Phone(563) 557-7642
  • Fleet75 power units · 120 drivers

Portzen Construction Inc (USDOT 459139, MC-307464) is an interstate motor carrier based in Dubuque, Iowa with 75 power units and 120 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 11 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 11, 2026

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Operating authority

Status from the FMCSA Company Census File, November 11, 2026

DocketAuthority typeStatus
MC-307464Contract carrierActive

First granted on September 5, 1996 · see full authority history.

Insurance

FMCSA legacy licensing records (last updated May 2026); filings may have changed since

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$1,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XUnited Fire & Casualty Co.$1,000,000Dec 31, 2025
Insurance history: 4 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)United Fire & Casualty Co.Jan 14, 2025Dec 31, 2025Cancel
Liability (BIPD)Middlesex Insurance Co.Dec 31, 2020Jan 14, 2025Replaced
Liability (BIPD)The Cincinnati Insurance Co.Dec 31, 2010Dec 31, 2020Replaced
Liability (BIPD)West Bend Mutual Insurance Co.Aug 14, 1996Sep 1, 2011Cancel

Process agent (BOC-3)

Truck Process Agents of America, Inc, Fargo, ND

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

11
Inspections
0 with no violations
9.1%
Driver out-of-service
1 of 11 inspections
30.0%
Vehicle out-of-service
3 of 10 inspections
0
Crashes
0 fatal · 0 injury · 0 tow-away

Inspected most often in: Wisconsin (10), Iowa (1).

Most recent inspection on file: October 6, 2026.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary revocation — Contract carrier authorityDiscontinued revocation on December 31, 2025
  2. Involuntary revocation — Contract carrier authorityDiscontinued revocation on January 29, 2025
  3. Reinstated — Contract carrier authority
  4. Involuntary revocation — Contract carrier authority
  5. Granted — Contract carrier authorityRevoked on September 7, 2011

Fleet and operations

From the company’s own registration (Form MCS-150), updated May 28, 2025

Power units
75
Trucks
75
Tractors owned
3
Trucks owned
72
Trailers owned
38
Drivers
120
CDL drivers
30
Interstate drivers
40
Intrastate drivers
80
Miles traveled
1,760,000 (2024)
Classification
Private property; Authorized for hire
Hazardous materials
No
USDOT registered
September 24, 1991
Address
205 Stone Valley Drive, Dubuque, IA 52003
Phone (registered with FMCSA)
(563) 557-7642

Cargo carried

  • General freight
  • Building materials
  • Machinery, large objects
  • Passengers
  • Construction
  • Dirt, sand, gravel

Key facts

  • USDOT number 459139 was registered on September 24, 1991.
  • Operating authority MC-307464 was first granted on September 5, 1996.
  • The company last updated its FMCSA registration (Form MCS-150) on May 28, 2025.
  • It reported 1,760,000 vehicle miles traveled in 2024.
  • One insurance filing is on file in FMCSA’s legacy licensing records (as of May 2026), including Liability (BIPD) coverage with United Fire & Casualty Co..
  • It had 11 roadside inspections in the last 24 months; 0 inspections recorded no violations.
  • Its process agent filing (BOC-3) is with Truck Process Agents of America, Inc.

Other carriers in Dubuque, IA

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