GRINDING ROCK AGGREGATES
AUTHORIZEDUSDOT
3907306
MC Number
N/A
Fleet Size
4
Total Drivers
6
Last updated: March 16, 2026
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Safety overview
GRINDING ROCK AGGREGATES is a small intrastate only (non-hazmat) motor carrier based in INDEPENDENCE, California, operating 4 power units with 6 drivers. FMCSA hasn't published BASIC scores for this carrier yet. That usually means they don't have enough inspection data for the system to calculate percentiles. No crashes on file.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
No BASIC scores available. This usually means the carrier hasn't had enough inspections for FMCSA to calculate percentiles.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Non-Hazmat)
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
0
Total
—
Driver %
Insurance on file
No insurance records on file with FMCSA.
Crash history
0
Total Crashes
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Frequently asked questions
Is GRINDING ROCK AGGREGATES authorized to operate?
Yes. GRINDING ROCK AGGREGATES (USDOT #3907306) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
How many trucks does GRINDING ROCK AGGREGATES operate?
GRINDING ROCK AGGREGATES operates 4 power units with 6 drivers on file. That makes them a small carrier.
Does GRINDING ROCK AGGREGATES transport hazardous materials?
No. GRINDING ROCK AGGREGATES does not have a hazardous materials flag in the FMCSA database.
Where is GRINDING ROCK AGGREGATES located?
GRINDING ROCK AGGREGATES is based in INDEPENDENCE, California at 131 N HWY 395, 93526. Phone: (760) 878-5160.