Carrier & Broker profile · USDOT 1634570 · MC604904 · Data as of Oct 7, 2026

Mountain Materials Inc

Alpine, CA · Interstate for-hire carrier and freight broker · Since 2007
Authority active$1M BIPD on fileNot rated by FMCSANo hazmat
Cargo carriedGeneral FreightBuilding MaterialsCommodities Dry BulkConstructionWater WellRock, Sand, Gravel
19
Power units
11
Drivers
7
Inspections · 24 mo
0
Crashes · 24 mo
665K
Annual miles
19 yr
Registered
84
/ 100
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Operating legally, with one flag to weigh

Authority and insurance are in order. Vehicle OOS well above average: 60.0% of vehicle inspections placed out of service vs 22.26% national.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates4/20
Crashes & rating20/20
Continuity & identity20/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
60.0%▲ above avg
National 22.26% · 3 of 5 inspections
Driver out-of-service
0.0%▼ below avg
National 6.67% · 0 of 7 inspections
Crashes
0
0 fatal0 injury0 tow-away
Crash rate 0.00 per 1M mi
Total inspections
7
Driver inspections
7
Vehicle inspections
5
People injured
0
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026
Carrier
Active
Broker
Active
Docket
MC604904
Revocation pending
No
Broker of Property (Except Household Goods)Motor Carrier of Property (Except Household Goods)

Coverage vs federal minimum

BIPD liability$1,000,000
$750K required minimum (49 CFR 387.9)
CargoNot required
Broker bond / trust (BMC-84/85)On file

Filings on record

  1. Dec 22, 2025Liability (BIPD) · Williamsburg National Ins Co. · $1,000,000
  2. —Surety bond / trust · American Contractors Indemnity Company

Equipment

SELF-REPORTED ON MCS-150
19
Power units
19
Trucks
15
Tractors owned
22
Trailers owned
11
Drivers
11
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstateAuthorized for Hire
Cargo carried
General FreightBuilding MaterialsCommodities Dry BulkConstructionWater WellRock, Sand, Gravel
Annual mileage
665,000 mi (2024)

Identity & federal record

FMCSA census · MCS-150
USDOT
1634570
MC / docket
MC-604904
Legal name
Mountain Materials Inc
DBA
—
Entity type
Carrier & Broker
Operation
Interstate
First registered
Apr 19, 2007
Last MCS-150
Mar 6, 2026
Safety rating
Not rated
Drivers (CDL)
11 (11)
Hazmat
No
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Unique phone number
Not shared with any other active USDOT.
Shared email address
Same email address as 1 other active USDOT.
Shared street address
Same street address as 1 other active USDOT.
Sharing this email address
Sharing this street address

Shared contact details can mean affiliated companies or a registration service, but they are also a common sign of chameleon carriers and identity theft. Confirm you're dealing with the company you expect.

Frequently asked

What is Mountain Materials Inc's USDOT number?

Mountain Materials Inc's USDOT number is 1634570 and its docket number is MC604904.

Is Mountain Materials Inc authorized to operate?

Yes. FMCSA shows active carrier and broker operating authority.

What is Mountain Materials Inc's safety record?

Over the last 24 months: 7 roadside inspections, a 60.0% vehicle and 0.0% driver out-of-service rate, and 0 reportable crashes (0 fatal). Not rated by FMCSA.

How big is Mountain Materials Inc's fleet?

19 power units and 11 drivers per its MCS-150 filed Mar 6, 2026.

What insurance does Mountain Materials Inc carry?

$1,000,000 in BIPD liability coverage is on file with Williamsburg National Ins Co..

Where is Mountain Materials Inc located?

Mountain Materials Inc is located at 1117 Tavern Rd, Alpine, CA, 91901. Phone: (619) 445-4150.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.