Robertson's Ready Mix Ltd A California Limited Partnership

USDOT activeAuthority activeCarrier · InterstateHazmat
  • USDOT256299
  • MC1040325
  • MC181673
  • LocationCorona, CA
  • Phone(951) 685-4600
  • Fleet1,239 power units · 1,239 drivers

Robertson's Ready Mix Ltd A California Limited Partnership (USDOT 256299, MC-1040325) is an interstate motor carrier based in Corona, California with 1,239 power units and 1,239 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 182 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 12, 2026

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Operating authority

Status from the FMCSA Company Census File, November 12, 2026

DocketAuthority typeStatus
MC-1040325Common carrierActive
MC-181673Common carrierInactive

First granted on December 6, 1985 · see full authority history.

Insurance

FMCSA legacy licensing records (last updated May 2026); filings may have changed since

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$2,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XTokio Marine America Insurance Company$2,000,000Oct 1, 2019
Insurance history: 1 past filing
TypeInsurerEffectiveEndedReason
Liability (BIPD)Tokio Marine America Insurance CompanyOct 1, 2018Oct 1, 2019Replaced

Process agent (BOC-3)

Process Agent Service Company, Inc., Sioux Falls, SD

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

182
Inspections
77 with no violations
4.0%
Driver out-of-service
7 of 173 inspections
14.7%
Vehicle out-of-service
24 of 163 inspections
17
Crashes
0 fatal · 7 injury · 10 tow-away

Inspected most often in: California (159), Nevada (23).

Most recent inspection on file: November 11, 2026.

FMCSA safety rating: Satisfactory (rated February 1, 1989)

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 — Common carrier authorityDiscontinued revocation on September 26, 2019
  2. Granted — Common carrier authority
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on October 16, 1987
  4. Granted — Common carrier authorityRevoked on December 7, 1988

Fleet and operations

From the company’s own registration (Form MCS-150), updated July 22, 2025

Power units
1,239
Trucks
1,239
Tractors owned
806
Trucks owned
84
Trailers owned
14
Drivers
1,239
CDL drivers
1,239
Interstate drivers
9
Intrastate drivers
1,230
Miles traveled
30,836,278 (2024)
Classification
Private property; Authorized for hire
Hazardous materials
Yes
USDOT registered
March 8, 1985
Address
200 S Main St #200, Corona, CA 92882
Phone (registered with FMCSA)
(951) 685-4600

Cargo carried

  • Liquids / gases
  • Commodities dry bulk
  • Unspecified

Key facts

  • USDOT number 256299 was registered on March 8, 1985.
  • Operating authority MC-1040325 was first granted on December 6, 1985.
  • The company last updated its FMCSA registration (Form MCS-150) on July 22, 2025.
  • It reported 30,836,278 vehicle miles traveled in 2024.
  • One insurance filing is on file in FMCSA’s legacy licensing records (as of May 2026), including Liability (BIPD) coverage with Tokio Marine America Insurance Company.
  • It had 182 roadside inspections in the last 24 months; 77 inspections recorded no violations.
  • FMCSA records list 17 reportable crashes in the last 24 months.
  • Its most recent FMCSA safety rating is Satisfactory, issued on February 1, 1989.
  • Its process agent filing (BOC-3) is with Process Agent Service Company, Inc..

Other carriers in Corona, CA

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