UNIMARK LOWBOY TRANSPORTATION LLC
Pleasant Prairie, WI · MC 593409
From CarrierTrail’s copy of the FMCSA census, published Sep 30, 2026. Record present in this snapshot. Official record: SAFER · Motus
1 to review · 2 notes
- 2 fatal crashes in the 24-month window
- Phone number shared with 6 other census records
- Address shared with 11 other census records
Observations from public fields, not findings about the company. Check the official record and the context before deciding.
Company identity and reported operations
| USDOT number | 1604546 |
|---|---|
| Legal name | UNIMARK LOWBOY TRANSPORTATION LLC |
| Doing business as / DBA | Not reported |
| MC docket identifiers | MC 593409 |
| Reported physical address | 10801 CORPORATE DRIVE, PLEASANT PRAIRIE, WI, 53158, US |
| Reported business phone | (262) 564-7282 |
| Reported power units | 154 |
| Reported drivers | 163 |
| Reported MCS-150 date | Jun 24, 2026 |
| Company officers (as filed) | Stephanie Johnston, Mike Smith |
| Carrier operation | Interstate |
| Census status code | A |
| Safety rating | Not reported |
| Safety rating date | Not reported |
Public inspection, violation and crash summary
FMCSA public SMS input records from 2024-08-28 through 2026-08-27.
| Inspections | 110 |
|---|---|
| Driver out-of-service rate | 1.8% (2 of 110) |
| Vehicle out-of-service rate | 18.8% (9 of 48) |
| Violations | 55 across 39 inspections |
| Out-of-service violations | 12 |
| Crashes | 15 |
| Fatal / injury / tow-away crashes | 2 / 5 / 15 |
| Fatalities / injuries reported | 3 / 10 |
Most frequent published violation codes
39375A3TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS63922SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit53922SLLLRState/Local Laws - Lane restriction violation439216DDriver - Failed to use seat belt while operating a CMV239360DWindshield / Windows - Tinting permits less than 70% of light transmittance2
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Reported cargo and business classification
UNIMARK LOWBOY TRANSPORTATION LLC reports AUTHORIZED FOR HIRE in the census and lists 2 cargo categories.
- Motor vehicles
- Driveaway / towaway
Record dates and observed changes
- Added to the census (not company founding date)
- Feb 06, 2007
- Carrier-reported MCS-150 filing date
- Jun 24, 2026
- Census source publication
- Sep 30, 2026 10:52 UTC
- First observed by CarrierTrail
- Sep 12, 2026 19:56 UTC
Source publication, carrier filing and our observation dates describe different events. An older filing date alone does not establish noncompliance.
Public-field differences from up to ten recent census change events are shown below.
No public-field changes are recorded in our observation window for this carrier. This does not mean the carrier never changed its details; tracking begins at the first observation shown above.
Authority and insurance
Authority filings
| Docket | Reported authority type | Reported status | BIPD required | BIPD on file |
|---|---|---|---|---|
| MC593409 | Motor Carrier of Property (Except Household Goods) | Active | $750,000 | $1,000,000 |
Insurance filings
| Docket | Insurer | Coverage | Effective date | Form | Policy |
|---|---|---|---|---|---|
| MC593409 | LM Insurance Corporation | $1,000,000 | Dec 19, 2023 | BMC-82 | 016242671 |
Sources and check dates
Checked Oct 01, 2026 16:21 UTC.
- Authority filings source · Published Oct 01, 2026 10:54 UTC.
- Insurance filings source · Published Oct 01, 2026 10:53 UTC.
Missing matches do not establish missing authority or insurance. Filing records are shown as published; check current status before booking.
Operating authority timeline
Status changes and notices recorded against UNIMARK LOWBOY TRANSPORTATION LLC’s operating authority dockets, newest first, from the FMCSA authority history and notices datasets.
- GrantedMC593409 · Motor Carrier of Property (Except Household Goods)
A notice or status line describes the docket, not the reason behind it. Check Motus for the current status before booking.
Shared contact details
How many other records in the current FMCSA census report the same phone number or the same physical address as USDOT 1604546. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Check the official record
Monitor this carrier after your review
Use a private workspace to save USDOT 1604546, review contact connections and filing observations, and document your team’s decisions. This public page does not include customer notes or approval decisions.