ROBERTSON'S READY MIX LTD

USDOT 256299 · Corona, CA

Authorized for-hireAuthority active

Operating snapshot

1,239Power units (fleet size)

1,239Drivers reported

41Years since registration

31MAnnual miles reported (2024)

Corona, CAHome base

190Inspections (24 mo)

Public FMCSA census & inspection records · as of 2026-06-06

Low

HaulReport estimate · highest estimated percentile

Vehicle Maintenance is this carrier's highest reconstructed BASIC percentile at the 35.1th percentile among 3,533 safety-event peers. Across 2 rated categories, 2 are estimated Low. Higher percentile = more inspection-violation activity recorded relative to peers. An independent estimate, not an official FMCSA or CSA score.

Estimated from public FMCSA data · updated 2026-06-08 · How we calculate this

ROBERTSON'S READY MIX LTD is a for-hire motor carrier based in Corona, CA, operating 1,239 power units and 1,239 drivers, and has been registered with FMCSA for about 41 years (since 1985). In this public FMCSA inspection snapshot it has 190 recorded inspections, with a vehicle out-of-service rate of 11.6% (below the 21.2% snapshot benchmark) and a driver out-of-service rate of 3.3% (about the same as the 5.2% benchmark). HaulReport's highest reconstructed BASIC percentile for this carrier is Vehicle Maintenance at the 35.1th percentile (estimated band: Low), ranked among 3,533 safety-event peers — an independent estimate, not an official FMCSA or CSA score.

HaulReport interpretation — auto-generated from the public FMCSA data below and our percentile estimates.

Estimated BASIC percentiles

Hours-of-Service ComplianceLow

7.3 pctl · CI 2–12

BASIC measure: 0.03Insp. w/ violation: 181Peer group: 4,727

Vehicle MaintenanceLow

35.1 pctl · CI 30–40

BASIC measure: 2.51Insp. w/ violation: 173Peer group: 3,533

Out-of-service rates

Vehicle OOS11.6%below the 21.2% snapshot benchmark · 173 inspections

Driver OOS3.3%about the same as the 5.2% snapshot benchmark · 181 inspections

Out-of-service rate = inspections resulting in an out-of-service order ÷ inspections. The benchmark is the inspection-weighted rate across this FMCSA snapshot — not an official national average. Rates are shown only with at least 5 inspections.

MCS-150 biennial update

Due September 2027

Next biennial update dueSeptember 2027

Recurring update monthSeptember, odd-numbered years

Last MCS-150 update on fileJuly 22, 2025

FMCSA sets each carrier's biennial update month from the last two digits of the USDOT number (last digit → month, second-to-last digit → odd/even year) — it is required even when nothing has changed. This is a schedule derived from the public rule, not a compliance determination. Verify and file on FMCSA · Deadline calculator

Live FMCSA status

Allowed to operate

Operating authority

Common: Active
Contract: None
Broker: None
Docket: MC1040325
Authorized for property

Insurance on file

Liability (BIPD): $2,000,000

Safety

Rating: Satisfactory (as of February 1, 1989)
Driver out-of-service rate: 4.1%
Vehicle out-of-service rate: 11.3%
Hazmat out-of-service rate: 0.0%

Live read from FMCSA's QCMobile system on June 29, 2026. Insurance figures are FMCSA "on file" amounts, not confirmation of current coverage; values can change at any time. FMCSA QCMobile

Insurance on file

Liability (BIPD)

Primary liability (BIPD) — maximum limit recorded by FMCSA: $2,000,000

1 filing on file — show details

Public liability (BIPD) — primaryTOKIO MARINE AMERICA INSURANCE COMPANY$2,000,000 max limit · Form 91X · effective 2019-10-01

Insurance filings on record in FMCSA's Licensing & Insurance (L&I) system (active or pending per the source dataset), as of 2026-06-08. Dollar figures are the maximum limit recorded on the filing, not confirmation of current coverage, and this is not a recommendation; filings can change or lapse at any time and may not reflect today's status. Confirm current coverage directly with FMCSA. Verify on FMCSA L&I

Change history & operating authority

Active

FMCSA operating authority is currently active for this carrier.

June 27, 2026New crash report published in the FMCSA crash file
June 18, 2026authority live record added

Operating-authority status is from FMCSA's licensing system; the change history is HaulReport's own append-only daily record (FMCSA does not publish change history). This is a factual record, not an official CSA score or safety rating, and can change at any time. Verify on FMCSA SAFER · See this carrier's changes in the daily FMCSA activity feed

Similar carriers in California

Other published carriers registered in the same state and for-hire class, with a comparable fleet size. Useful for comparing like-for-like operators.

WILBUR-ELLIS COMPANY LLCSan Francisco, CA · 1,208 power units
WESTERN OILFIELDS SUPPLY COBakersfield, CA · 1,139 power units
GRANITE CONSTRUCTION COMPANYWatsonville, CA · 939 power units
BRAGG INVESTMENT COMPANY INCLong Beach, CA · 530 power units
SPEED INTERMODALStockton, CA · 492 power units
WC LOGISTICS INCBuena Park, CA · 385 power units

Similarity is based on public FMCSA registration state, for-hire classification, and reported fleet size — not a safety or quality comparison.

Independent estimate — not an official FMCSA or CSA score. Highest estimated percentile band: Low.

This percentile is an independent estimate produced by ranking FMCSA's publicly published BASIC measure within a safety-event peer group. FMCSA does not publish percentiles for property carriers; this figure is HaulReport's reconstruction and may differ from any internal FMCSA value. Bands describe percentile ranges among peers, not safety judgments. It is provided for general informational purposes only; it is not a consumer report and may not be used for any purpose governed by the Fair Credit Reporting Act (including credit, insurance, employment, or tenant screening), and it is not a safety rating, a fitness determination, legal advice, or a recommendation to do business with any carrier. Always verify against official FMCSA sources before relying on it.

Carrier facts (public FMCSA data)

Verbatim public facts from FMCSA datasets. Only the percentile/band/confidence figures above are HaulReport reconstructions — **not** official FMCSA or CSA scores.
USDOT number	256299
Legal name	ROBERTSON'S READY MIX LTD
Location	CORONA, CA
Operating classification	Authorized for-hire (per FMCSA census)
FMCSA operating authority	Active (per FMCSA licensing)
Power units (fleet size)	1,239
Drivers	1,239
Reported annual mileage	30,836,278 (reported for 2024)
FMCSA registered	1985 (~41 years)
Last MCS-150 update	July 22, 2025
Next MCS-150 update due	September 2027
Inspections (trailing 24 mo)	190
Published BASIC measures	2
Insurance filings (FMCSA L&I)	1 on file (active/pending per source) — Public liability (BIPD) — primary

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State reference data: Truck-crash statistics for California — state-wide totals for all carriers registered in California, not specific to this carrier.

FMCSA data as of 2026-06-06 · Last synced 2026-06-08 · Method: how these percentiles are reconstructed · Canonical: https://haulreport.com/carrier/256299/