Data / Carriers / California / Robertson's Ready Mix LTD a California Limited Partnership
Robertson's Ready Mix LTD a California, USDOT 256299
Updated November 7, 2026. Source: US Department of Transportation, FMCSA Motor Carrier Census, Inspection, Crash and Licensing files.
Robertson's Ready Mix LTD a California Limited Partnership (USDOT 256299) is an interstate carrier in Corona, CA, registered with FMCSA with 1,239 power units and 1,239 drivers as it reports them. FMCSA recorded 182 roadside inspections from November 7, 2024 to November 7, 2026, the latest on October 30, 2026. Its vehicle out of service rate was 14.7% against 22.9% for all carriers (24 of 163 vehicle inspections). The states reported 17 crashes in the same period, with 0 deaths and 8 injuries.
The request: Watch Robertson's Ready Mix LTD a California Limited Partnership (USDOT 256299): each new inspection, crash and authority change. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the carrier register, roadside inspections, crashes and operating authority that FMCSA publishes, and this page is that reading. Ask for the carriers you sell to or insure by state, city, cargo or fleet size, and new inspections, crashes and authority changes arrive in your sheet, CRM, Slack or agent as FMCSA posts them.
- USDOT number
- 256299
- Location
- 200 S Main ST #200, Corona, CA 92882
- Phone
- (951) 685 4600
- Operation
- Interstate; private property, for hire
- Docket
- MC 1040325
- Operating authority
- Active common carrier authority for property
- Liability insurance on file
- $2,000,000 (bodily injury and property damage)
- Power units
- 1,239
- Drivers
- 1,239 (1,239 with a commercial licence)
- Miles reported
- 30,836,278 in 2024
- Cargo carried
- Liquids and gases, Dry bulk commodities, Unspecified
- Hazardous materials
- Yes, as the carrier reports
- Compliance review rating
- Satisfactory (February 1, 1989)
- Last registration update
- July 22, 2025
- In the FMCSA register since
- March 8, 1985
- FMCSA safety measurement page
- ai.fmcsa.dot.gov
Inspections and out of service rates
Roadside inspections from November 7, 2024 to November 7, 2026. The national rate is the rate across every carrier in the same window.
| Measure | Inspections | Out of service | Rate | National rate | Against national |
|---|---|---|---|---|---|
| Vehicle inspections | 163 | 24 | 14.7% | 22.9% | 8.2 points below the national rate |
| Driver inspections | 173 | 7 | 4% | 6.3% | 2.3 points below the national rate |
| All inspections, any out of service order | 182 | 31 | 17% | 19.4% |
Crashes
17 crashes reported from November 7, 2024 to November 7, 2026; the newest 10 are listed.
| Date | City | State | Deaths | Injuries | Towed away |
|---|---|---|---|---|---|
| June 29, 2026 | Redlands | CA | 0 | 0 | Yes |
| May 13, 2026 | Los Angeles | CA | 0 | 0 | Yes |
| April 16, 2026 | Carson | CA | 0 | 0 | Yes |
| March 27, 2026 | Unincorporated | CA | 0 | 1 | Yes |
| March 12, 2026 | National City | CA | 0 | 0 | Yes |
| March 3, 2026 | Los Angeles | CA | 0 | 1 | Yes |
| September 8, 2025 | Unincorporated | CA | 0 | 1 | Yes |
| August 11, 2025 | Ontario | CA | 0 | 0 | Yes |
| July 24, 2025 | Santa Ana | CA | 0 | 1 | Yes |
| June 6, 2025 | San Diego | CA | 0 | 0 | Yes |
The carrier's full record on the FMCSA safety measurement page
Also on SpecStream
- Carriers in California
- Carriers in Corona, CA
- New trucking companies in California
- Liquids and gases carriers in California
- Dry bulk commodities carriers in California
Public domain (U.S. government work). Inspection and crash counts cover November 7, 2024 to November 7, 2026. Fleet size, drivers, cargo and operation are as each carrier reports them to FMCSA and can be out of date. A vehicle or driver out of service order means an inspector ordered the vehicle or driver off the road until the problem was fixed. The national rate comes from every inspection in the same window. Crashes are those state police reported to FMCSA and are not a finding of fault. This page uses US Department of Transportation data and is not endorsed or certified by the Department of Transportation or FMCSA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.