MAINLINE UNDERGROUND CORPORATION
USDOT 4270233
Active, intrastate (non-hazmat) carrier, small fleet (5 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate50% vs 19.1% national avg
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 | 4270233 |
|---|---|
| MC Number | — |
| Legal Name | MAINLINE UNDERGROUND CORPORATION |
| DBA Name | — |
| Entity Type | — |
| Phone | 7209801466 |
| Address | 599 S MAIN ST, Brighton, CO, 80601-3044 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Intrastate (Non-Hazmat) |
| 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.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 4 |
|---|---|
| Out-of-Service Rate | 50% vs 19.1% national average |
Most frequent violation categories: 20 (2), 25 (2), 28 (2).
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) | 5 |
|---|---|
| Drivers | 5 |
| Recent Annual Mileage | 95,000 |
| Last MCS-150 Filing | 03-MAR-25 |
MAINLINE UNDERGROUND CORPORATION operates 5 power units — a larger fleet than 88% of carriers registered in CO.
Nearby
Other carriers in Brighton, CO
- SAKATA FARMS INC. — USDOT 6280804, 27 power units
- SAFETY ZONE TRAFFIC CONTROL LLC — USDOT 4206658, 25 power units
- GREAT PLAINS LOGISTICS LLC — USDOT 4134020, 14 power units
- VENCO CONCRETE LLC — USDOT 4279610, 12 power units
- OAK PINE CONSTRUCTION LLC — USDOT 7373940, 12 power units
Browse all carriers in Brighton, CO or all CO carriers.