MC
MAMMOTH CONSTRUCTION LLC
DOT 2958771ActiveIntrastate Non-HazmatMANITOWOC, WI
COMPANY
Authority since
—
MCS-150
2026-03-04 · 22,583 mi (2025)
Fleet
8 units · 6 trailers · 8 drivers
ADDRESS
Physical
1616 WOLLMER ST
MANITOWOC, WI 54220-3843
MANITOWOC, WI 54220-3843
Mailing
Same as physical
CONTACT
Phone
9204822656
Email
PAT@MAMMOTHBUILDS.COM
OFFICERS
Primary Officer
PAT MATTHIAS
Title
OWNER
OPERATION & CARGO
Operation classification
Private Property;authorized For Hire
Specialty
Construction & Building Materials
Cargo types
5
Building MaterialsMachinery, Large ObjectsCommodities Dry BulkUtilityConstruction
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.
AUTHORITY
—
Active authority
INSURANCE
None
No coverage on file
RISK GRADE
Moderate Risk
1 risk factors · 1 strengths
OOS RATE
0.0%
0 / 2 inspections
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Moderate Risk
25/100 risk points1 risk factor · 1 strengths · 3 data pointslow confidenceWeighted heuristic: crashes are decayed by recency and normalized per 100 power units, out-of-service and violation rates use a rolling 24-month window, plus FMCSA BASIC alerts and the CarrierIntel Safety Score (which also decays when compliance has not been verified by a recent inspection). Not the official FMCSA SMS score.
SAFETY PERFORMANCE
Crash Record
0 crashes · 0 fatal · 0 with injuries · 0 tow-away
Clean Inspection Rate
100% — 2 clean of 2 inspections
Out-of-Service Rate
0.0% — driver OOS 0, vehicle OOS 0
COMPLIANCE & AUTHORITY
Operating Authority
Active operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-03-04
INSURANCE
Active Coverage
No active insurance policies on file
SUMMARY
No active insurance on file
No crashes in the last 24 months
Only 1 inspections in the last 24 months — limited data
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