Carrierintel
SB

S B COX READY MIX INC

Carrierintel Safety Score: 66/100. 11 inspection violations in 12 months. Last inspected Jun 2026.

DOT 2284804ActiveIntrastate Non-HazmatROCKVILLE, VA

COMPANY

Authority since
—
MCS-150
2026-01-07 · 1,143,658 mi (2024)
Fleet
84 units · 12 trailers · 56 drivers
Annual mileage (VMT)
1,143,658 mi (2024)

ADDRESS

Physical
2160 LANIER LANE
ROCKVILLE, VA 23146
Mailing
P O BOX 5363
GLEN ALLEN, VA 23058

CONTACT

Phone
8043640500
Email
rknack@coxreadymix.com

OFFICERS

Primary Officer
MORGAN S. NELSON
Title
PRESIDENT

OPERATION & CARGO

Operation classification
Private Property · Authorized For Hire
Specialty
Auto Transport
Cargo types
3
Motor VehiclesBuilding MaterialsConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
175 mo
Since USDOT registration
INSURANCE
Insurance not verified
Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.
RISK GRADE
Moderate Risk
2 risk factors · 2 strengths
OOS RATE
16.7%
7 / 42 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

66
out of 100
Fair
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
84 power units
Unique power units seen
13
+ 2 trailer VINs
Inspections
14
Discrepancy
0.2x

Moderate Risk

2 risk factors · 2 strengths · 5 data points

SAFETY PERFORMANCE

Crash Record
44 crashes · 0 fatal · 24 with injuries · 44 tow-away
Clean Inspection Rate
83% — 35 clean of 42 inspections
Out-of-Service Rate
16.7% — driver OOS 4 insp., vehicle OOS 4 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Out-of-service orders
None on record
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-01-07

INSURANCE

Active Coverage
Insurance not verified — Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.

SUMMARY

Elevated OOS rate 19% (last 24 mo)
5 injury crashes in the last 24 months
Low crash rate (3.6 per 100 trucks/yr)
83% clean inspections

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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