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SU

SUPERIOR UNDERGROUND LLC

DOT 3132119ActiveIntrastate Non-HazmatDENVER, CO

COMPANY

Authority since
—
MCS-150
2026-03-12 · 265,000 mi (2025)
Fleet
25 units · — trailers · 25 drivers
Annual mileage (VMT)
265,000 mi (2025)

ADDRESS

Physical
6500 FRANKLIN ST UNIT C
DENVER, CO 80229
Mailing
Same as physical

CONTACT

Phone
7203865655
Email
chuck@superiorunderground.com

OFFICERS

Primary Officer
CHARLES HAMMACK JR
Title
DIRECTOR OF SAFETY & QUALITY
Origin
Anglosphere

OPERATION & CARGO

Operation classification
Private Property
Specialty
Heavy Haul / Oilfield
Cargo types
3
General FreightMachinery, Large ObjectsOther: CONSTRUCTION EQUIPMENT
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
—
Active authority
INSURANCE
None
No coverage on file
RISK GRADE
Elevated Risk
3 risk factors · 2 strengths
OOS RATE
10.7%
6 / 56 inspections

Fleet vs Reality

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

Elevated Risk

3 risk factors · 2 strengths · 5 data points

SAFETY PERFORMANCE

Crash Record
0 crashes · 0 fatal · 0 with injuries · 0 tow-away
Clean Inspection Rate
89% — 50 clean of 56 inspections
Out-of-Service Rate
10.7% — driver OOS 1, vehicle OOS 5

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-03-12

INSURANCE

Active Coverage
No insurance policies on file

SUMMARY

Elevated OOS rate 16% (last 24 mo)
1.6 violations per inspection
No active insurance on file
No crashes in the last 24 months
89% clean inspections

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