SOUTHWESTERN MOTOR TRANSPORT INC
AUTHORIZEDDBA: SMT LINES
USDOT
136555
MC Number
80252
Fleet Size
1086
Total Drivers
510
FMCSA-derived snapshot updated: October 11, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
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Safety overview
SOUTHWESTERN MOTOR TRANSPORT INC is a large interstate motor carrier based in SAN ANTONIO, Texas, operating 1086 power units with 510 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 1.3% comes in under the 6.7% national average. They have 9 crashes on file (4 with injuries). FMCSA records show 154 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Texas is 13.5% and the average vehicle OOS rate is 29.8% across 187,375 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- Yes
- Safety Rating Date
- N/A
Inspections
154
Total
56%
Driver %
Insurance on file
Liability (BIPD)
Not on file
Cargo
Not on file
Surety Bond
Protective Insurance Company — eff. Oct 1, 2013
Trust Fund
Not on file
Source: FMCSA Motus. Imported Oct 14, 2026. Verify current filings directly with FMCSA before relying on them.
Crash history
9
Total Crashes
Similar carriers in Texas
Other carriers in the same state with a similar fleet size.
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AUGUSTINE CORPORATION
Frequently asked questions
Is SOUTHWESTERN MOTOR TRANSPORT INC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for SOUTHWESTERN MOTOR TRANSPORT INC (USDOT #136555) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is SOUTHWESTERN MOTOR TRANSPORT INC's safety record?
SOUTHWESTERN MOTOR TRANSPORT INC has 154 inspections in CarrierOwl's current imported snapshot and 9 matching crashes. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does SOUTHWESTERN MOTOR TRANSPORT INC operate?
SOUTHWESTERN MOTOR TRANSPORT INC operates 1086 power units with 510 drivers on file. That puts them in the large carrier category by FMCSA standards.
Does SOUTHWESTERN MOTOR TRANSPORT INC transport hazardous materials?
Yes. SOUTHWESTERN MOTOR TRANSPORT INC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is SOUTHWESTERN MOTOR TRANSPORT INC located?
SOUTHWESTERN MOTOR TRANSPORT INC is based in SAN ANTONIO, Texas at 4600 GOLDFIELD, 78218. Phone: (210) 661-6791.
What are SOUTHWESTERN MOTOR TRANSPORT INC's out-of-service rates?
SOUTHWESTERN MOTOR TRANSPORT INC's driver out-of-service rate is 1.3%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 13.0%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.