AU
A1 UNDERGROUND INSTALLATION INC
CarrierIntel Score: 53/100. 16 inspection violations in the past 12 months. Updated Oct 2026.
DOT 1677793ActiveInterstateBAY CITY, MI
COMPANY
Authority since
—
MCS-150
2026-02-12 · 260 mi (2025)
Fleet
20 units · 20 trailers · 17 drivers
Annual mileage (VMT)
260 mi (2025)
ADDRESS
Physical
233 MIDLAND RD
BAY CITY, MI 48706
BAY CITY, MI 48706
Mailing
P O BOX 9
AUBURN, MI 48611
AUBURN, MI 48611
CONTACT
Phone
9896624630
Email
a1underground@a1underground.net
OFFICERS
Primary Officer
CLARENCE PATTERSON JR
Title
TREASURER
OPERATION & CARGO
Operation classification
Private Property
Specialty
Heavy Haul / Oilfield
Cargo types
2
Machinery, Large ObjectsUtility
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
230 mo
Since USDOT registration
INSURANCE
Insurance not verified
Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.
RISK GRADE
Minimal Risk
0 risk factors · 1 strengths
OOS RATE
33.3%
4 / 12 inspections
CarrierIntel Safety Score
Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.
53
out of 100
Below Average
Markers: OOS inspection Crash Fatality
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Minimal Risk
0 risk factors · 1 strengths · 2 data pointsSAFETY PERFORMANCE
Crash Record
4 crashes · 0 fatal · 1 with injuries · 4 tow-away
Clean Inspection Rate
67% — 8 clean of 12 inspections
Out-of-Service Rate
33.3% — driver OOS 1 insp., vehicle OOS 3 insp.
COMPLIANCE & AUTHORITY
USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Out-of-service orders
None on record
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-02-12
INSURANCE
Active Coverage
Insurance not verified — Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.
SUMMARY
Low crash rate (2.5 per 100 trucks/yr)
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