SOUTHWORTH MILTON INC
AUTHORIZEDDBA: MILTON CAT
USDOT
305115
MC Number
N/A
Fleet Size
162
Total Drivers
162
Last updated: March 16, 2026
Safety overview
SOUTHWORTH MILTON INC is a large interstate motor carrier based in MILFORD, Massachusetts, operating 162 power units with 162 drivers. 2 of their 5 BASIC scores sit above the 75th percentile intervention threshold. The rest fall within acceptable ranges. Their driver out-of-service rate of 4.0% comes in under the 5.51% national average. They have 2 crashes on file (1 fatal, 1 with injuries). FMCSA records show 101 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
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 Massachusetts is 13.3% and the average vehicle OOS rate is 27.8% across 37,564 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
101
Total
63%
Driver %
Insurance on file
No insurance records on file with FMCSA.
Crash history
2
Total Crashes
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Frequently asked questions
Is SOUTHWORTH MILTON INC authorized to operate?
Yes. SOUTHWORTH MILTON INC (USDOT #305115) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SOUTHWORTH MILTON INC's safety record?
SOUTHWORTH MILTON INC has 2 BASIC scores above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.
How many trucks does SOUTHWORTH MILTON INC operate?
SOUTHWORTH MILTON INC operates 162 power units with 162 drivers on file. That puts them in the large carrier category by FMCSA standards.
Does SOUTHWORTH MILTON INC transport hazardous materials?
No. SOUTHWORTH MILTON INC does not have a hazardous materials flag in the FMCSA database.
Where is SOUTHWORTH MILTON INC located?
SOUTHWORTH MILTON INC is based in MILFORD, Massachusetts at 100 QUARRY DRIVE, 01757. Phone: (508) 634-3400.
What are SOUTHWORTH MILTON INC's out-of-service rates?
SOUTHWORTH MILTON INC's driver out-of-service rate is 4.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 6.7% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.