Superior Diamond Concrete Cutting (DOT# 2121456) – FMCSA Carrier Profile
doing business as SUPERIOR DIAMOND
DOT# 2121456● Active
Updated: 2026-03-09
Superior Diamond Concrete Cutting is a registered motor carrier with the FMCSA under USDOT number 2121456. The company operates from Superior, WI and maintains an active operating status with 10 power units and 8 drivers on record.
Safety Rating
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Company Information
Address3119 Hill Avenue, Superior, WI, 54880
Phone(715) 394-6757
Entity TypePrivate Property
OperationInterstate
Power Units10
Drivers8
MCS-150 FiledAugust 15, 2025
Annual Mileage21,000 mi (2024)
Inspection Summary
All-time Inspections
All-time5
Total
1
OOS
0
Driver OOS
1
Vehicle OOS
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.
BASICS Safety Scores
BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories1.3
Unsafe Driving
0.0
HOS Compliance
0.0
Driver Fitness
0.0
Controlled Substances
2.2
Vehicle Maintenance
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Frequently Asked Questions
What is USDOT Number 2121456?
USDOT number 2121456 is assigned to Superior Diamond Concrete Cutting, an active motor carrier registered with the FMCSA, based in Superior, WI.
How many inspections has Superior Diamond Concrete Cutting had?
Superior Diamond Concrete Cutting has recorded 5 total inspections with 1 out-of-service orders, representing an OOS rate of 20.00%.
Where is Superior Diamond Concrete Cutting located?
Superior Diamond Concrete Cutting is headquartered at 3119 Hill Avenue, Superior, WI 54880.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 2121456 · Last updated: 2026-03-09. View official FMCSA record →