SUPERIOR UNDERGROUND LLC
AUTHORIZEDUSDOT
3132119
MC Number
N/A
Fleet Size
53
Total Drivers
39
Last updated: March 16, 2026
Broker verification report
Want a verification report for this carrier?
Request a sample CarrierOwl report for SUPERIOR UNDERGROUND LLC. We will use this DOT profile to show authority, insurance, safety, contact consistency, and timestamped notes your team can save before sending a rate con.
Safety overview
SUPERIOR UNDERGROUND LLC is a mid-size interstate motor carrier based in DENVER, Colorado, operating 53 power units with 39 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 2.9% comes in under the 5.51% national average. No crashes on file. FMCSA records show 34 inspections for this carrier.
Truck insurance quotes
Need insurance for this carrier?
Enter your email and we'll use this FMCSA profile to prepare truck insurance quotes.
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 Colorado is 11.1% and the average vehicle OOS rate is 26.1% across 48,014 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
34
Total
65%
Driver %
Insurance on file
No insurance records on file with FMCSA.
Crash history
0
Total Crashes
Similar carriers in Colorado
Other carriers in the same state with a similar fleet size.
AMERICAN DISPOSAL SERVICES OF COLORADO INC
HIGH COUNTRY BEVERAGE CORP
ROCK SOLID LANDSCAPES INC
VAN HEUKELEM CONCRETE INC
CITY OF BOULDER
Frequently asked questions
Is SUPERIOR UNDERGROUND LLC authorized to operate?
Yes. SUPERIOR UNDERGROUND LLC (USDOT #3132119) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SUPERIOR UNDERGROUND LLC's safety record?
SUPERIOR UNDERGROUND LLC has 34 inspections on file and no crashes on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles directly with FMCSA before relying on them.
How many trucks does SUPERIOR UNDERGROUND LLC operate?
SUPERIOR UNDERGROUND LLC operates 53 power units with 39 drivers on file. That puts them in the mid-size range.
Does SUPERIOR UNDERGROUND LLC transport hazardous materials?
No. SUPERIOR UNDERGROUND LLC does not have a hazardous materials flag in the FMCSA database.
Where is SUPERIOR UNDERGROUND LLC located?
SUPERIOR UNDERGROUND LLC is based in DENVER, Colorado at 6500 FRANKLIN ST UNIT C, 80229. Phone: (720) 386-5655.
What are SUPERIOR UNDERGROUND LLC's out-of-service rates?
SUPERIOR UNDERGROUND LLC's driver out-of-service rate is 2.9%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 16.7% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.