ADVANCED UNDERGROUND INC
Hamilton, OH · MC identifier not reported
Based in Hamilton, Ohio, ADVANCED UNDERGROUND INC (USDOT 3966240) operates a private fleet with 29 power units and 43 drivers. It is registered as a hazmat carrier. Its MCS-150 shows 260,000 miles driven in 2023.
From CarrierTrail’s copy of the FMCSA census, published Oct 28, 2026. Record present in this snapshot. Official record: SAFER · Motus
- MCS-150 last updated more than 2 years ago
Company identity and reported operations
| USDOT number | 3966240 |
|---|---|
| Legal name | ADVANCED UNDERGROUND INC |
| Doing business as / DBA | Not reported |
| MC docket identifiers | Not reported |
| Reported physical address | 4440 HAMILTON SCIPIO RD, HAMILTON, OH, 45013-9129, US |
| Reported business phone | (513) 867-0200 |
| Reported power units | 29 |
| Reported drivers | 43 |
| Reported MCS-150 date | Oct 16, 2024 |
| Company officers (as filed) | Steven Christopher Combs, Lisa Marie Combs |
| Carrier operation | Interstate |
| Entity type | Carrier |
| Hazmat indicator | Yes |
| Census status code | A |
| Safety rating | Not reported |
| Safety rating date | Not reported |
Fleet, equipment and drivers
ADVANCED UNDERGROUND INC reports this equipment and these drivers on its MCS-150. Owned, term-leased and trip-leased units are counted separately.
No change in power units or drivers since CarrierTrail first recorded this carrier on Sep 12, 2026.
Counts as filed on the carrier’s MCS-150. Miles per power unit divides the reported annual miles by the reported power units.
Public inspection, violation and crash summary
FMCSA public SMS input records from 2024-09-25 through 2026-09-24.
1 roadside inspection between Sep 2024 and Sep 2026, in 1 state. Inspected in 1 of 25 months; busiest Jul 2026 with 1.
| Inspections | 1 |
|---|---|
| Driver out-of-service rate | 100.0% (1 of 1) |
| Vehicle out-of-service rate | 100.0% (1 of 1) |
| Violations | 3 across 1 inspections |
| Out-of-service violations | 2 |
| Crashes | 0 |
| Fatal / injury / tow-away crashes | 0 / 0 / 0 |
| Fatalities / injuries reported | 0 / 0 |
| Placarded hazmat inspections | 0 · 0 with a hazmat out-of-service order |
Most frequent published violation codes
39141APCMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency139343DBMABrake - Breakaway not attached to the towing vehicle139617CPIOperating a CMV without documentation of a periodic inspection1
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Compare the reported Hamilton record
ADVANCED UNDERGROUND INC reports 29 power units. The Hamilton, Ohio directory contains 1,098 census records, of which 918 report at least one power unit.
Reported cargo and business classification
ADVANCED UNDERGROUND INC reports PRIVATE PROPERTY in the census and lists 7 cargo categories.
- General freight
- Building materials
- Machinery and large objects
- Liquids and gases
- Utility
- Construction
- Other: DIRECTIONAL DRILLS
Fleet size in local context
| Power units | Records | Share of all city records |
|---|---|---|
| 0 | 180 | 16.4% |
| 1 | 548 | 49.9% |
| 2–5 | 252 | 23.0% |
| 6–20 | 91 | 8.3% |
| 21–100: this carrier’s band | 23 | 2.1% |
| Over 100 | 4 | 0.4% |
| Unknown / other | 0 | 0.0% |
Record dates and observed changes
- Added to the census (not company founding date)
- Oct 07, 2022
- Carrier-reported MCS-150 filing date
- Oct 16, 2024
- Census source publication
- Oct 28, 2026 10:49 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
No matching authority or insurance filings were found in the latest check.
Shared contact details
How many other records in the current FMCSA census report the same phone number or the same physical address as USDOT 3966240. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Explore these reported cargo categories
General freightBuilding materialsMachinery and large objects
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
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