US · FMCSA ACTIVE
FOURTH STREET ROCK CRUSHER
San Bernardino, CA 92411 · DOT 586308 · MC284010
Company profile
Web-discovered · as of 2026-07-30
San Bernardino-based for-hire motor carrier operating a fleet of 36 trucks, specializing in dump truck services for the construction and construction materials industry.
Fleet use
For-hire freight
Operating scope
Regional
Equipment
dump
Ownership
Private
HQ · 1955 W Ninth Street, San Bernardino, CA 92411
909-885-6866 OPERATING CONFIRMED
Active FMCSA record as of mid-2026 with consistent fleet size, confirmed in San Bernardino and Rancho Cucamonga (Inland Rock division).
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
36
power units
Activity
road freight carrier
for hire licence
In operation since
1995
27 drivers
US compliance
Source FMCSA L&I / SAFER · as of 2026-07-08
Operating authority
None / private
Insurance on file
No
min cover $750k
Out of service
No
Safety rating
UNRATED
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