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MU

MAINLINE UNDERGROUND CORPORATION

DOT 4270233ActiveIntrastate Non-HazmatBRIGHTON, CO

COMPANY

Authority since
—
MCS-150
2025-03-03 · 95,000 mi (2024)
Fleet
5 units · 5 trailers · 5 drivers
Annual mileage (VMT)
95,000 mi (2024)
Owner origin
Western-northern-european
Origin candidates
French 31%

ADDRESS

Physical
599 S MAIN ST
BRIGHTON, CO 80601-3044
Mailing
Same as physical

CONTACT

Phone
7209801466
Email
michelle.salas@szt-ml.com

OFFICERS

Primary Officer
MICHELLE SALAS
Title
OWNER
Origin
Western-northern-european

OPERATION & CARGO

Operation classification
Private Property
Specialty
Construction & Building Materials
Cargo types
2
Building MaterialsConstruction
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
Moderate Risk
1 risk factors · 1 strengths
OOS RATE
50.0%
2 / 4 inspections

Fleet vs Reality

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

Moderate Risk

1 risk factor · 1 strengths · 3 data points

SAFETY PERFORMANCE

Crash Record
0 crashes · 0 fatal · 0 with injuries · 0 tow-away
Clean Inspection Rate
50% — 2 clean of 4 inspections
Out-of-Service Rate
50.0% — driver OOS 0, vehicle OOS 2

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2025-03-03

INSURANCE

Active Coverage
No insurance policies on file

SUMMARY

No active insurance on file
No crashes in the last 24 months

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