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Mountain Materials Inc

USDOT activeAuthority activeCarrier & Shipper & Broker · Interstate
  • USDOT1634570
  • MC604904
  • LocationAlpine, CA
  • Phone(619) 445-4150
  • Fleet19 power units · 11 drivers

Mountain Materials Inc (USDOT 1634570, MC-604904) is an interstate motor carrier based in Alpine, California with 19 power units and 11 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 6 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 10, 2026

Operating authorityActive · MC-604904Motor Carrier of PropertyLiability insurance$1,000,000 on fileRequired: $750,000Safety ratingNot rated6 inspections in 24 monthsOut-of-service ordersNone on fileFMCSA out-of-service orders fileRegistration (MCS-150)Updated Mar 6, 20268 months agoProcess agent (BOC-3)On fileInterstate Authority LLC

Got a call or email from someone using this company’s name? Check the phone number or email against FMCSA records.

Operating authority

Status from the FMCSA Company Census File, November 10, 2026

DocketAuthority typeStatus
MC-604904Motor Carrier of Property (except Household Goods)Broker of Property (except Household Goods)Active

First granted on June 8, 2007 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 11, 2026

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$1,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Broker surety bond BMC-84American Contractors Indemnity Company$75,000Apr 10, 2026
Liability (BIPD) BMC-91XWilliamsburg National Insurance Company$1,000,000Dec 22, 2025
Insurance history: 17 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)Williamsburg National Ins Co.Dec 22, 2025Dec 22, 2025Replaced
Liability (BIPD)Williamsburg National Ins Co.Dec 22, 2022Dec 22, 2025Replaced
Liability (BIPD)Williamsburg National Ins Co.Dec 22, 2021Dec 22, 2022Cancel
Broker surety bondAmerican Contractors Indemnity CompanyApr 1, 2021Apr 10, 2026Cancel
Liability (BIPD)Williamsburg National Ins Co.Dec 22, 2019Dec 22, 2021Cancel
Liability (BIPD)State National Insurance Co., Inc.Aug 10, 2019Dec 22, 2019Replaced
Broker surety bondAmerican Contractors Indemnity CompanyFeb 11, 2019Apr 1, 2021Cancel
Liability (BIPD)State National Insurance Co., Inc.Dec 22, 2017Aug 10, 2019Cancel
Liability (BIPD)Wesco Insurance CompanyNov 1, 2017Dec 22, 2017Replaced
Liability (BIPD)Century National Insurance CompanyNov 1, 2016Nov 1, 2017Cancel
Liability (BIPD)Century National Insurance CompanyNov 1, 2015Nov 1, 2016Replaced
Liability (BIPD)Century National Insurance CompanyNov 1, 2014Nov 1, 2014Replaced
Liability (BIPD)Century National Insurance CompanyNov 1, 2012Nov 1, 2014Cancel
Liability (BIPD)Century National Insurance CompanyNov 1, 2009May 17, 2012Term / cancl
Liability (BIPD)Century National Insurance CompanyNov 1, 2008Feb 13, 2009Term / cancl
Liability (BIPD)Scottsdale Indemnity CompanyNov 1, 2007Nov 1, 2008Cancel
Liability (BIPD)Century National Insurance CompanyMay 8, 2007Oct 31, 2007Cancel

Process agent (BOC-3)

Interstate Authority LLC, Moore, OK

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

6
Inspections
1 with no violations
0.0%
Driver out-of-service
0 of 6 inspections
50.0%
Vehicle out-of-service
2 of 4 inspections
0
Crashes
0 fatal · 0 injury · 0 tow-away

Inspected most often in: California (6).

Most recent inspection on file: July 31, 2026.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary revocation — Broker authorityDiscontinued revocation on April 16, 2026
  2. Involuntary revocation — Common carrier authorityDiscontinued revocation on December 21, 2022
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on December 28, 2021
  4. Involuntary revocation — Broker authorityDiscontinued revocation on March 18, 2021
  5. Involuntary revocation — Common carrier authorityDiscontinued revocation on July 29, 2019
  6. Granted — Common carrier authority; Property Broker
  7. Discontinued revocation — Broker of Property (except Household Goods); Motor Carrier of Property (except Household Goods)
  8. Involuntary revocation — Common carrier authorityDiscontinued revocation on November 2, 2017
Show 16 earlier events
  1. Involuntary revocation — Common carrier authorityDiscontinued revocation on October 27, 2016
  2. Involuntary revocation — Common carrier authorityDiscontinued revocation on February 19, 2016
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on October 30, 2015
  4. Involuntary revocation — Common carrier authorityDiscontinued revocation on November 5, 2014
  5. Involuntary revocation — Common carrier authorityDiscontinued revocation on April 16, 2013
  6. Involuntary revocation — Common carrier authorityDiscontinued revocation on November 13, 2012
  7. Involuntary revocation — Common carrier authorityDiscontinued revocation on August 3, 2012
  8. Involuntary revocation — Common carrier authorityDiscontinued revocation on May 4, 2012
  9. Involuntary revocation — Common carrier authorityDiscontinued revocation on March 30, 2012
  10. Involuntary revocation — Common carrier authorityDiscontinued revocation on February 2, 2012
  11. Involuntary revocation — Common carrier authorityDiscontinued revocation on October 30, 2009
  12. Involuntary revocation — Common carrier authorityDiscontinued revocation on January 22, 2009
  13. Involuntary revocation — Common carrier authorityDiscontinued revocation on November 3, 2008
  14. Reinstated — Common carrier authority
  15. Involuntary revocation — Common carrier authority
  16. Granted — Common carrier authorityRevoked on November 6, 2007

Fleet and operations

From the company’s own registration (Form MCS-150), updated March 6, 2026

Power units
19
Trucks
19
Tractors owned
15
Trucks owned
4
Trailers owned
22
Drivers
11
CDL drivers
11
Interstate drivers
4
Intrastate drivers
7
Miles traveled
665,000 (2024)
Classification
Authorized for hire
Hazardous materials
No
USDOT registered
April 19, 2007
Address
1117 Tavern Rd, Alpine, CA 91901
Phone (registered with FMCSA)
(619) 445-4150
Other active USDOT records at this address
2

Cargo carried

  • General freight
  • Building materials
  • Commodities dry bulk
  • Construction
  • Water well
  • Rock, sand, gravel

Key facts

  • USDOT number 1634570 was registered on April 19, 2007.
  • Operating authority MC-604904 was first granted on June 8, 2007.
  • The company last updated its FMCSA registration (Form MCS-150) on March 6, 2026.
  • It reported 665,000 vehicle miles traveled in 2024.
  • 2 insurance filings are on file, including Broker surety bond coverage with American Contractors Indemnity Company.
  • It had 6 roadside inspections in the last 24 months; 1 inspection recorded no violations.
  • Its process agent filing (BOC-3) is with Interstate Authority LLC.

Other carriers in Alpine, CA

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