Carrier profile · USDOT 1634570 · MC-604904 · Updated Jun 13, 2026

MOUNTAIN MATERIALS INC

18 power unitsLocal · 1 statesALPINE, CA71/100
CARRIER ACTIVEMC-604904 ACTIVE
Verified linksmountainmaterials.comFMCSA SAFER

Authority & Insurance

Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.

Operating authority· 49 CFR · per type

Operating authority

Common
Active
Contract
None
Broker
Active

Insurance & bonds

BIPD / liability$1,000,000 in force
Cargo filing (census)Not recorded per census
Surety bond (census)Recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum
$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$1M BIPD last filed ’25 · 5 insurers · 5 lapsesCoverage lapse
2007201220172022now

Shorter eras are too brief to label at this scale — all 11 insurers are named in the list below.

BIPD in force — $1,000,000 · WILLIAMSBURG NATIONAL INS CO. · since Dec 2025

All 11 insurer eras · dates, limits, renewals
InsurerPeriodLimitRenewals
WILLIAMSBURG NATIONAL INS CO.Dec 2019 → Dec 2025$1M5
STATE NATIONAL INSURANCE CO., INC.Aug 2019 → Dec 2019$1M1
STATE NATIONAL INSURANCE CO., INC.Dec 2017 → Dec 2017$1M2
WESCO INSURANCE COMPANYNov 2017 → Dec 2017$1M1
CENTURY NATIONAL INSURANCE COMPANYNov 2015 → Nov 2017$1M5
CENTURY NATIONAL INSURANCE COMPANYNov 2014 → Nov 2014$1M4
CENTURY NATIONAL INSURANCE COMPANYNov 2012 → Nov 2012$1M3
CENTURY NATIONAL INSURANCE COMPANYNov 2009 → May 2012$1M7
CENTURY NATIONAL INSURANCE COMPANYNov 2008 → Nov 2008$1M4
SCOTTSDALE INDEMNITY COMPANYNov 2007 → Nov 2008$1M1
CENTURY NATIONAL INSURANCE COMPANYMay 2007 → Oct 2007$1M1