- Legal name
- Mountain Materials INC
- USDOT number
- 1634570
- MC docket
- MC604904
- Physical address
- 1117 Tavern Rd, Alpine, CA, 91901
- m•••@m•••.com Unlock
- Power units
- 18
- Drivers
- 18
- Operation
- Intrastate (non-hazmat)
- Operating radius
- Interstate 100+ mi
- Cargo
- General Freight, Building Materials, Commodities Dry Bulk, Construction, Water Well, Other
- Operation class
- Authorized For-Hire
- Last MCS-150 filing
- Mar 6, 2026
- Common authority
- Active
- Broker authority
- Active
- Authority granted
- Apr 19, 2007
- Insurer (writing paper)
- Williamsburg National Ins CO.
- Filing form
- BMC-91X
- Coverage amount
- $1,000,000
- BI/PD on file
- $1,000,000
- Estimated renewal window
- Q4 2026
Working this account? See the current renewal estimate free with the X-date lookup.
- FMCSA safety rating
- Not rated
- Roadside inspections (24 mo)
- 7
- Out-of-service inspections
- 3
- Inspections with violations
- 6
- BASICs with acute/critical violations
- 0
- SMS population
- Intrastate (non-hazmat)
Is Mountain Materials INC insured?
Yes. Mountain Materials INC (USDOT 1634570) has active BI/PD liability insurance on file with FMCSA, currently written by Williamsburg National Ins CO., with $1,000,000 in coverage on the filing.
What insurance company does Mountain Materials INC use?
Mountain Materials INC's current BI/PD filing is written by Williamsburg National Ins CO.. Insurer changes show up in the daily-refreshed federal filing record.
What is Mountain Materials INC's MC number?
Mountain Materials INC's FMCSA docket is MC604904, paired with USDOT 1634570.
Is Mountain Materials INC safe to work with?
Mountain Materials INC's FMCSA safety rating is not rated (most carriers never receive one), with 7 roadside inspections in the last 24 months, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page. This carrier is scored in FMCSA’s intrastate non-hazmat SMS file: a state-regulated population measured separately from interstate fleets, typically operating locally.
When does Mountain Materials INC's insurance renew?
Based on its filing history, Mountain Materials INC's BI/PD policy is estimated to renew in Q4 2026. The exact estimated X-date, with alerts when it changes, is in Market Tracker. Unlock USDOT 1634570’s exact X-date →
How many trucks does Mountain Materials INC operate?
Mountain Materials INC reports 18 power units and 18 drivers in its latest MCS-150 census filing.
Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Sep 15, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.
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This page republishes the public FMCSA record for USDOT 1634570. If you are connected to this carrier and want your details removed, request removal.