Carrierintel
SU

STX UNDERGROUND LLC

CarrierIntel Score: 35/100. 43 inspection violations in the past 12 months. Updated Oct 2026.

DOT 3606119ActiveOut-of-service order: Intrastate Out of Service · 2022-12-31 (rescinded 2025-04-30)Intrastate Non-HazmatBROWNSVILLE, TX

COMPANY

Authority since
—
MCS-150
2025-05-13 · 202 mi (2024)
Fleet
2 units · 2 trailers · 2 drivers
Annual mileage (VMT)
84,000 mi (2025)

ADDRESS

Physical
1511 LOS SABALES DR
BROWNSVILLE, TX 78520
Mailing
Same as physical

CONTACT

Phone
9565727466
Email
stxundergroundllc@gmail.com

OFFICERS

Primary Officer
ROLANDO MARTINEZ JR.
Title
MANAGING MEMBER

OPERATION & CARGO

Operation classification
Private Property
Specialty
Towing & Recovery / Driveaway
Cargo types
5
Motor VehiclesDriveaway / TowawayBuilding MaterialsMachinery, Large ObjectsConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
66 mo
Since USDOT registration
INSURANCE
Verification needed
No federal insurance filing found. Whether this carrier must file one is unclear from its registration; verify coverage through state records or the insurer.
RISK GRADE
Elevated Risk
3 risk factors · 1 strengths
OOS RATE
72.7%
16 / 22 inspections

CarrierIntel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

35
out of 100
Needs Attention
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Checking local VIN index…

Elevated Risk

3 risk factors · 1 strengths · 5 data points

SAFETY PERFORMANCE

Crash Record
0 crashes · 0 fatal · 0 with injuries · 0 tow-away
Clean Inspection Rate
27% — 6 clean of 22 inspections
Out-of-Service Rate
72.7% — driver OOS 9 insp., vehicle OOS 15 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Out-of-service orders
Out-of-service order: Intrastate Out of Service · 2022-12-31 (rescinded 2025-04-30)
Authority Events
No authority history events
MCS-150 Filing
Last filed 2025-05-13

INSURANCE

Active Coverage
Verification needed — No federal insurance filing found. Whether this carrier must file one is unclear from its registration; verify coverage through state records or the insurer.

SUMMARY

Severe OOS rate 60% (last 24 mo)
8.7 violations per inspection
Low clean-inspection rate (27%)
No crashes in the last 24 months

Other motor carriers in Brownsville, TX

All carriers in Brownsville, TX →

More carriers in Texas

All Texas carriers →Browse every state →