STACK BROS MECHANICAL CONTRACTORS INC
DBA STACK BROS · Superior, WI · MC 1583591
From CarrierTrail’s copy of the FMCSA census, published Sep 30, 2026. Record present in this snapshot. Official record: SAFER · Motus
Nothing flagged in the public fields we check
That is not a clearance. Check current authority, insurance and your own requirements before booking.
Company identity and reported operations
| USDOT number | 1280175 |
|---|---|
| Legal name | STACK BROS MECHANICAL CONTRACTORS INC |
| Doing business as / DBA | STACK BROS |
| MC docket identifiers | MC 1583591 |
| Reported physical address | 3119 HILL AVE, SUPERIOR, WI, 54880, US |
| Reported business phone | (715) 398-2964 |
| Reported power units | 134 |
| Reported drivers | 143 |
| Reported MCS-150 date | May 27, 2025 |
| Company officers (as filed) | William E Stack |
| 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 | 8 |
|---|---|
| Driver out-of-service rate | 12.5% (1 of 8) |
| Vehicle out-of-service rate | 42.9% (3 of 7) |
| Violations | 20 across 7 inspections |
| Out-of-service violations | 6 |
| Crashes | 0 |
| Fatal / injury / tow-away crashes | 0 / 0 / 0 |
| Fatalities / injuries reported | 0 / 0 |
Most frequent published violation codes
39345B2BAIRAir Brake - Hose/tubing damaged or not secured239375A3TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS23965BLLubrication - Oil or grease leak239111B4Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or139216DDriver - Failed to use seat belt while operating a CMV1
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Reported cargo and business classification
STACK BROS MECHANICAL CONTRACTORS INC reports PRIVATE PROPERTY;AUTHORIZED FOR HIRE in the census and lists 3 cargo categories.
- Building materials
- Machinery and large objects
- Construction
Record dates and observed changes
- Added to the census (not company founding date)
- Aug 27, 2004
- Carrier-reported MCS-150 filing date
- May 27, 2025
- 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 |
|---|---|---|---|---|
| MC1583591 | Motor Carrier of Property (Except Household Goods) | Active | $1,000,000 | $750,000 |
Insurance filings
| Docket | Insurer | Coverage | Effective date | Form | Policy |
|---|---|---|---|---|---|
| MC1583591 | Travelers Indemnity Co | $750,000 | Sep 27, 2023 | BMC-91X | 3L209924 |
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 STACK BROS MECHANICAL CONTRACTORS INC’s operating authority dockets, newest first, from the FMCSA authority history and notices datasets.
- GrantedMC1583591 · 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 1280175. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Explore these reported cargo categories
Building materialsMachinery and large objects
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
Use a private workspace to save USDOT 1280175, review contact connections and filing observations, and document your team’s decisions. This public page does not include customer notes or approval decisions.