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Carrier profile · USDOT 190744 · Updated 06/13/2026

FOUR CORNERS MATERIALS INC

DBA OLD CASTLE SOUTHWEST GROUP INC

120 power unitsDURANGO, CO
AUTHORITY STATUS UNKNOWN
Verified linksFMCSA SAFERCall
Observed fleet · trailing 24 mo daily
120Power units
Self-reported · MCS-150
Trailers seen
None observed · 24 mo
Avg age (yr)
Awaiting decode

Carrier verification summary for FOUR CORNERS MATERIALS INC

FOUR CORNERS MATERIALS INC (USDOT 190744) is unrated by Vektor because the deterministic FMCSA record does not contain enough evidence for a safety score as of 06/13/2026.

FOUR CORNERS MATERIALS INC (USDOT 190744) has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of 06/13/2026.

FOUR CORNERS MATERIALS INC (USDOT 190744) has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot row is available as of 06/13/2026.

FOUR CORNERS MATERIALS INC (USDOT 190744) has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of 06/13/2026.

FOUR CORNERS MATERIALS INC (USDOT 190744) reports 120 power units and 131 drivers in its most recent MCS-150 filing dated 10/08/2001.

FOUR CORNERS MATERIALS INC (USDOT 190744) has no FMCSA-assigned safety rating in the federal record refreshed 06/13/2026.

USDOT registration52 yr registered
Authority not on file
Insurance (BIPD) unknown
No filing on record
Vehicle OOS · 24-mo
No inspections · 24 mo
Crashes · fatal0
No activity in window
Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet typeIdentity

Asset-based

120 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

Awaiting VIN decode

Identity stabilityStable

52 yr unchanged

Same registration since 1974 — no chameleon / reincarnation signal.

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Frequently asked

What is FOUR CORNERS MATERIALS INC's USDOT number?

FOUR CORNERS MATERIALS INC's USDOT number is 190744.

Is FOUR CORNERS MATERIALS INC authorized to operate?

As of 2026-06-13, FOUR CORNERS MATERIALS INC is inactive in the FMCSA register.

How big is FOUR CORNERS MATERIALS INC's fleet?

FOUR CORNERS MATERIALS INC operates 120 power units and 131 drivers per its most recent MCS-150 filing.

Where is FOUR CORNERS MATERIALS INC based?

FOUR CORNERS MATERIALS INC is based in DURANGO, CO.

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