ST
STONE TRANSPORT LIMITED PARTNERSHIP
DOT 300960MC 170956ActiveMotor CarrierInterstateZURICH AMERICAN INSURANCE COMPANY · $1,000,000 · 1 policySAGINAW, MI
COMPANY
Authority since
2001-11-21
MCS-150
2025-10-24 · 14,544,952 mi (2023)
Fleet
247 units · 506 trailers · 225 drivers
ADDRESS
Physical
3495 HACK ROAD
SAGINAW, MI 48601
SAGINAW, MI 48601
Mailing
Same as physical
CONTACT
Phone
9897544788
Email
SWIEGERS@STONETRANSPORT.COM
OFFICERS
Primary Officer
DEAN DARBY
Title
OWNER
OPERATION & CARGO
Operation classification
Authorized For Hire
Specialty
Auto Transport
Cargo types
16
General FreightMetal: Sheets, Coils, RollsMotor VehiclesLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsFresh ProduceLiquids / GasesOilfield EquipmentCoal / CokeGarbage, Refuse, TrashChemicalsCommodities Dry BulkPaper ProductsConstructionOther
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
302 mo
Active authority
INSURANCE
1 active
ZURICH AMERICAN INSURANCE COMPANY
RISK GRADE
Elevated Risk
3 risk factors · 2 strengths
OOS RATE
26.6%
190 / 713 inspections
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Elevated Risk
36/100 risk points3 risk factors · 2 strengths · 7 data pointshigh 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
389 crashes · 16 fatal · 162 with injuries · 336 tow-away
Clean Inspection Rate
73% — 523 clean of 713 inspections
Out-of-Service Rate
26.6% — driver OOS 9, vehicle OOS 183
COMPLIANCE & AUTHORITY
Operating Authority
Active operating authority on file
Authority Events
14 historical event(s) on file
MCS-150 Filing
Last filed 2025-10-24
INSURANCE
Active Coverage
1 active policy(ies) · total max coverage $1,000,000
SUMMARY
High OOS rate 27% (last 24 mo)
6.1 crashes per 100 trucks/yr
1.8 violations per inspection
Active insurance on file
Coverage $1.0M
1 fatal crash in the last 24 months — 0.20 per 100 trucks/yr, at or below the industry norm for a fleet this size
FMCSA crash records do not state who was at fault
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