UNDERDOWN TRENCHING INC
USDOT 4482322
Active, interstate carrier, mid-size fleet (45 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate50% vs 19.1% national avg
- Crashes (24 months)1 reported — involvement does not imply fault
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 4482322 |
|---|---|
| MC Number | — |
| Legal Name | UNDERDOWN TRENCHING INC |
| DBA Name | — |
| Entity Type | — |
| Phone | 6363431321 |
| Address | 1150 QUAIL HOLLOW DR, Fenton, MO, 63026-4956 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 0 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 0 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 92 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 8 |
|---|---|
| Out-of-Service Rate | 50% vs 19.1% national average |
| Crashes | 1 total (0 fatal, 1 with injuries, 1 towaway) |
- 2026-04-01 — MO — 2 injured, towaway
Most frequent violation categories: 20 (12), 16 (6), 29 (6).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 45 |
|---|---|
| Drivers | 33 |
| Recent Annual Mileage | — |
| Last MCS-150 Filing | 16-OCT-25 |
UNDERDOWN TRENCHING INC operates 45 power units — a larger fleet than 99% of carriers registered in MO.
Nearby
Other carriers in Fenton, MO
- TOP CARE LANDSCAPE LLC — USDOT 4351207, 67 power units
- LUBY EQUIPMENT LLC — USDOT 4441089, 23 power units
- BLACKWELL CONTRACTING, LLC — USDOT 9899855, 16 power units
- BLACKWELL CONTRACTING LLC — USDOT 9806651, 15 power units
- IRONMASTERS STEEL LLC — USDOT 4240727, 12 power units
Browse all carriers in Fenton, MO or all MO carriers.