UNITED PIPING INC

DOT# 676883 MC# 1026836

ACTIVE

Trust Score

100 / 100

A Excellent

Components

Compliance · 40% 100

Safety · 35% 100

Insurance · 25% 100

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

Overview

Address

4510 AIRPORT RD

DULUTH, MN 55811

View on Google Maps ↗

Contact

Phone: (218) 727-7676

Fax: (218) 727-1536

Email: holly.dobson@unitedpiping.us

Company Officers

TIM DARIF

BART SEGER

Business Info

Organization: CORPORATION

D&B #: 94037843

HazMat: HazMat Carrier

Fleet

Power Units

Drivers

Equipment Breakdown

Owned Trucks15

Owned Tractors3

Term Trucks8

Term Tractors3

Authority

Status: ACTIVE

FMCSA add date: Feb 18, 1997

Common authority: Apr 4, 2019

Contract authority: Apr 4, 2019

Authority History (2)

Authority Type	Action	Date
MOTOR PROPERTY CONTRACT CARRIER	GRANTED	Apr 4, 2019
MOTOR PROPERTY COMMON CARRIER	GRANTED	Apr 4, 2019

Cargo Types

Metal/Sheets/CoilsMotor VehiclesLogs/Poles/LumberMachinery/Large ObjectsOilfield Equipment

Active Certifications

Property

MCS-150

Last updated: Mar 24, 2026

Mileage: 520,000 (2025)

Operation Classification

PRIVATE PROPERTYAUTHORIZED FOR HIRE

Carrier Operation

Interstate

Related Companies

Company	DOT#	MC#	Location	Status	Linked By
PROFILE CONTRACTING LLC	2638430	958044	BETTENDORF, IA	ACTIVE	Officer

Recent Changes

Safetyvehicle oos rate: 23.076923 → 16.666666Aug 22, 2026

Contactemail: HOLLY.DOBSON@UNITEDPIPING.US → holly.dobson@unitedpiping.usAug 20, 2026

Identitycompany officer 1: BART SEGER → TIM DARIFAug 20, 2026

Contactemail: → HOLLY.DOBSON@UNITEDPIPING.USAug 15, 2026

Identitycompany officer 1: → BART SEGERAug 15, 2026

Safety

Out-of-Service Rates

Driver18 inspections

0.0%

6.2%

Carrier National avg

Vehicle12 inspections

16.7%

22.8%

Carrier National avg

Hazmat

No hazmat inspections

Overall18 inspections

11.1%

Carrier

Crash Summary

Fatal

Injury

Towaway

Total

BASIC Violations

Unsafe Driving5

Driver Fitness0

Hours of Service3

Drug / Alcohol0

Vehicle Maintenance9

Safety Measurement System (SMS)

FMCSA's official per-BASIC roadside-performance measures over the trailing 24 months, computed from the 19 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.

SMS Inspections (24 mo)

Total

Driver OOS

Vehicle OOS

BASIC Measures

Unsafe Driving0.522 insp w/ viol

Hours of Service0.332 insp w/ viol

Driver Fitness0.000 insp w/ viol

Controlled Substances0.000 insp w/ viol

Vehicle Maintenance3.668 insp w/ viol

Insurance

$5,000,000

BIPD Coverage

On file

Cargo Coverage

2 policies on file2 active

Type	Status	Insurer	Policy #	Coverage	Effective	Expires	Form
BIPD	Active	NATIONAL UNION FIRE INS. CO. OF PITSBGH. PA	6579331	$5,000,000	Dec 31, 2018	—	91X
CARGO	Active	NATIONAL UNION FIRE INS. CO. OF PITSBGH. PA	6579331	—	Dec 31, 2018	—	34

Get this data via API

API Reference

curl https://api.dotlookup.dev/v1/carriers/676883