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Freight Carrier · Corona, CA

ROBERTSON'S READY MIX LTD A CALIFORNIA LIMITED PARTNERSHIP

200 S MAIN ST #200 · Corona, CA 92882

AUTHORIZED FOR:
(951) 685-4600 Tap to call
  • MC #1040325
  • USDOT #256299 USDOT Active
  • 1239
    Power Units
  • 1239
    Drivers
  • Carrier
    Entity Type

About this carrier

ROBERTSON'S READY MIX LTD A CALIFORNIA LIMITED PARTNERSHIP is a Corona, CA freight carrier that is authorized for: in the state of California. This company has 1239 truck(s) in their fleet and 1239 truck drivers. Their motor carrier number is MC-1040325 and their USDOT number is 256299.

Sourced from FMCSA SAFER · last filed 07/22/2025 · last updated Oct 22, 2026.

Carrier Details

  • Operating Status AUTHORIZED FOR:
  • MCS-150 Filed 07/22/2025
  • MCS-150 Mileage 30,836,278 (2024)

Authority & Operations

Operation Classification
  • Authorized for Hire
  • Private (Property)
Carrier Operation
  • Interstate

Cargo Authorized

  • Liquids/Gases

Operating Territory

Map of states where this carrier has roadside inspections California — 163 inspections (past 24 months) California — 163 inspections (past 24 months) California — 163 inspections (past 24 months) California — 163 inspections (past 24 months) California — 163 inspections (past 24 months) Nevada — 23 inspections (past 24 months)

Inspection activity   Inspected in 2 states over the past 24 months: CA (163), NV (23). Home base: Corona, California.

Safety Record

15 Severe Violations Updated Oct 15, 2026

Crashes (24 mo)

  • 0
    Fatal
  • 8
    Injury
  • 11
    Tow
  • 19
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0.1 13 Crash Indicator Not Public — Hours of Service 0.11 2 Vehicle Maintenance 3.24 72 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0.26 3

Inspection Summary

  • 186
    Total
  • 104
    Clean
  • 82
    With violations

24-month window ending Sep 25, 2026

Violations Cited 68 unique codes

Critical 23

  • 383.23A2-LCDLNLicense (CDL) - Operate a CMV and does not possess a valid CDL2× OOS×2 SW 8
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS2× OOS×2 SW 8
  • 383.23A2-LCDLEndorsements - (CDL) - Operate a CMV without proper endorsements on operators license1× OOS×1 SW 8
  • 383.95A-LCDLRestriction - (CDL) - Operate a CMV in violation of a restriction1× OOS×1 SW 8
  • 393.75A1-TAOBETATires - All others, more than one ply is exposed in the sidewall and the area exceeds 2 square inches.1× SW 8
  • 393.100B-CCargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV2× OOS×2 SW 7
  • 392.2SLLHOSState/Local Laws - State/Local Hours of Service1× OOS×1 SW 7
  • 393.207A-SAPPCBLMSuspension - Axle positioning part cracked/broken/loose/missing.1× OOS×1 SW 7
  • 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.4× OOS×4 SW 6
  • 393.209D-STBSMSteering - Ball and socket joint has movement under load of the stud nut1× OOS×1 SW 6
  • 393.11A1-LRLMWRLighting - Tail lamp - Both lamps on rearmost vehicle missing when required to be on.1× OOS×1 SW 6
  • 393.11A1-LHLMWRLighting - Headlamps - Both missing when required to be on1× OOS×1 SW 6
  • 395.8A-NON-ELDNo record of duty status when one is required (ELD Not Required)1× OOS×1 SW 5
  • 393.45B2-B-VACBrake - Vacuum hose(s) or line(s) restricted/abraded/chafed through outer cover-to-cord ply crimped/cracked/broken2× OOS×2 SW 4
  • 396.3A1-BALRAir Brake - Fails air loss rate test1× OOS×1 SW 4
  • 393.43(d)No or defective automatic trailer brake1× OOS×1 SW 4
  • 393.43DBMABrake - Breakaway not attached to the towing vehicle1× OOS×1 SW 4
  • 396.7A-UOCUnsafe Operations - Severe Post Crash Condition2× OOS×2 SW 3
  • 393.205A-WRBHWheel/Rim - Cracks between stud holes/hand holes1× OOS×1 SW 2
  • 396.5B-HWSLHubs - Wheel seal leaking1× OOS×1 SW 2
  • 392.9A2-CCargo - Vehicle components or dunnage not secured7× OOS×7 SW 1
  • 393.100C-CCargo - Cargo not secured against shifting3× OOS×1 SW 1
  • 396.3(a)1BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination1× OOS×1 SW 0

Unsafe Driving 4

  • 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit4× SW 7
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other6× SW 5
  • 392.2CFailure to obey traffic control device1× SW 5
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit2× SW 4

Vehicle Maintenance 41

  • 393.9A-LSLILighting - Stop lamps - Any inoperative.6× SW 6
  • 393.9A-LBLLighting - Backup lamp inoperative3× SW 6
  • 393.11A1-LHLMLighting - Headlamp(s) - Any missing2× SW 6
  • 393.9A-LFTSILighting - Front - Turn signal - inoperative2× SW 6
  • 393.11A1-LBLLighting - Backup lamp missing1× SW 6
  • 393.9A-LTSIRLighting - Turn signal -Any inoperative on a unit that is not the rearmost unit1× SW 6
  • 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on1× SW 6
  • 393.9A-LRLILighting - Tail lamp - Any inoperative1× SW 6
  • 393.9A-LHLILighting - Headlamp(s) - Any inoperative1× SW 6
  • 393.47(e)Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt8× SW 4
  • 396.17C-PIOperating a CMV without documentation of a periodic inspection5× SW 4
  • 393.45D-BAir Brake - Audible air leak at a proper connection3× SW 4
  • 393.45B2-BAir brake - Hose/tubing damaged or not secured2× SW 4
  • 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× SW 4
  • 396.3A1-OALOther - Any air leak not attributed to the brake or suspension system.1× SW 4
  • 393.45D-BAALAir Brake - Audible air leak at other than a proper connection1× SW 4
  • 393.47A-LJNBrakes - Loose/Missing Jam Nut1× SW 4
  • 393.48A-BIBDDrum Brake - Inoperative other than a steering axle1× SW 4
  • 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured1× SW 4
  • 393.11A1-LRRLighting - Reflex reflector(s) missing or improper3× SW 3
  • 393.95A4-EEUSEmergency Equipment - Fire Extinguishers - unsecured7× SW 2
  • 393.9A-LCLLighting - Clearance lamp(s) inoperative6× SW 2
  • 393.95A1Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.3× SW 2
  • 393.9A-LILLighting - Identification lamp(s) inoperative2× SW 2
  • 393.9A-LLPLLighting - License plate lamp inoperative2× SW 2
  • 393.95A3Emergency Equipment - Fire Extinguishers - no visual indicator2× SW 2
  • 393.95(g)Emergency Equipment (HM) - Improper warning devices for hazardous material loads.1× SW 2
  • 393.203C-CBPCab and Body Parts - Hood not securely fastened1× SW 2
  • 393.95(f)Emergency Equipment - Stopped vehicle warning devices missing or improper1× SW 2
  • 393.203B-CBPCab and Body Parts - Cab/body mounts loose/broken/missing1× SW 2
  • 393.201D-FRFrame - Accessories improperly attached1× SW 2
  • 393.9Inoperable Required Lamp1× SW 2
  • 393.11A1-LSMLLighting - Side marker lamp(s) missing1× SW 2
  • 393.11A1-LLPLLighting - License plate lamp missing1× SW 2
  • 393.9A-LSMLLighting - Side marker lamp(s) inoperative1× SW 2
  • 393.11A1-LILLighting - Identification lamp(s) missing1× SW 2
  • 393.11A1-LCLLighting - Clearance lamp(s) missing1× SW 2
  • 393.78A-WSWashers - Inoperative washing system.8× SW 1
  • 393.60(d)Windshield / Windows - Tinting permits less than 70% of light transmittance2× SW 1
  • 392.2-SLLMFState/Local Laws - Wheel (mud) flaps missing or defective1× SW 1
  • 393.78Wipers - Inoperative / missing / damaged wipers1× SW 1

Locations

Physical Address
ROBERTSON'S READY MIX LTD A CALIFORNIA LIMITED PARTNERSHIP
200 S MAIN ST #200
CORONA, CA 92882
Mailing Address
ROBERTSON'S READY MIX LTD A CALIFORNIA LIMITED PARTNERSHIP
P O BOX 3600
CORONA, CA 92878

Location on Map

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