SIOUX CITY ENGINEERING CO.

DOT# 1132605 MC# 460956CARRIER

ACTIVE

Trust Score

95 / 100

A Excellent

Components

Compliance · 40% 90

Safety · 35% 98

Insurance · 25% 100

Confidence: medium · based on FMCSA safety, insurance & authority data How is this calculated?

Potential Chameleon Carrier

This carrier shares strong identity signals with a carrier that had safety concerns. This is a heuristic flag, not a confirmed finding.

low DOT# 69900—May be a successor to DOT 69900 (SPECIALIZED HAULING, INC., inactive). Linked by: address, phone

Overview

Address

5000 S LEWIS BLVD

SIOUX CITY, IA 51106

View on Google Maps ↗

Contact

Phone: (712) 255-7683

Fax: (712) 233-6024

Email: janet@siouxcityengineering.com

Company Officers

JON SULZBACH

JASON SULZBACH

Business Info

Fleet

Power Units

Drivers

Equipment Breakdown

Term Trucks3

Term Tractors3

Term Trailers7

Authority

Status: ACTIVE

FMCSA add date: May 23, 2003

Common authority: Jul 21, 2003

Authority History (1)

Authority Type	Action	Date
MOTOR PROPERTY COMMON CARRIER	GRANTED	Jul 21, 2003

Cargo Types

General FreightMetal/Sheets/CoilsLogs/Poles/LumberBuilding MaterialsMachinery/Large Objects

Active Certifications

Property

MCS-150

Last updated: Jan 5, 2024

Mileage: 41,945 (2023)

Operation Classification

PRIVATE PROPERTYAUTHORIZED FOR HIRE

Carrier Operation

Interstate

Related Companies

Company	DOT#	MC#	Location	Status	Linked By
SPECIALIZED HAULING, INC.	69900	135117	SIOUX CITY, IA	INACTIVE	AddressPhone

Recent Changes

New Carrierphy state: → IAJun 23, 2026

Removedphy state: IA → (removed)Jun 22, 2026

Safety

Out-of-Service Rates

Driver2 inspections

0.0%

6.2%

Carrier National avg

Vehicle2 inspections

100.0%

22.8%

Carrier National avg

Hazmat

No hazmat inspections

Overall2 inspections

100.0%

Carrier

Crash Summary

Fatal

Injury

1.0

per 1M miles

Towaway

Total

BASIC Violations

Unsafe Driving0

Driver Fitness0

Hours of Service0

Drug / Alcohol0

Vehicle Maintenance4

Safety Measurement System (SMS)

FMCSA's official per-BASIC roadside-performance measures over the trailing 24 months, computed from the 2 inspections below. A measure of 0 means no recorded violations in that BASIC — not necessarily a strong safety record on a small sample. FMCSA does not publish peer-group percentiles for property carriers, so the underlying measures — not percentile rankings — are shown; Hazmat Compliance and Crash Indicator are not published. Based on fewer than 11 inspections — treat these measures as a weak signal.

SMS Inspections (24 mo)

Total

Driver OOS

Vehicle OOS

BASIC Measures

Unsafe Driving0.000 insp w/ viol

Hours of Service0.000 insp w/ viol

Driver Fitness0.000 insp w/ viol

Controlled Substances0.000 insp w/ viol

Vehicle Maintenance10.752 insp w/ viol

Insurance

$750,000

BIPD Coverage

On file

Cargo Coverage

2 policies on file2 active

Type	Status	Insurer	Policy #	Coverage	Effective	Expires	Form
BIPD	Active	THE CINCINNATI INSURANCE CO.	CPP 553 44 90 AWR	$750,000	Jan 1, 2003	—	91X
CARGO	Active	THE CINCINNATI INSURANCE CO.	CPP 553 44 90 AWR	—	Jan 1, 2003	—	34

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API Reference

curl https://api.dotlookup.dev/v1/carriers/1132605