Carrier profile · USDOT 459139 · MC-307464 · Updated Jun 13, 2026

PORTZEN CONSTRUCTION INC

75 power unitsLocal · 2 statesDUBUQUE, IA87/100

CARRIER ACTIVEMC-307464 ACTIVE

Authority & Insurance

Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.

Operating authority· 49 CFR · per type

Operating authority

Common: None
Contract: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’25 · 4 insurers · 0 lapsesInsurer churn

West Bend’96–’11

Cincinnati’10–’20

Middlesex’20–’25

1996200420122020now

Shorter eras are too brief to label at this scale — all 4 insurers are named in the list below.

BIPD in force — $1,000,000 · UNITED FIRE & CASUALTY CO. · since Dec 2025

All 4 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
UNITED FIRE & CASUALTY CO.	Jan 2025 → Dec 2025	$750K	1
MIDDLESEX INSURANCE CO.	Dec 2020 → Feb 2025	$750K	2
THE CINCINNATI INSURANCE CO.	Dec 2010 → Dec 2020	$750K	1
WEST BEND MUTUAL INSURANCE CO.	Aug 1996 → Sep 2011	$750K	1