CSA
UnknownUSDOT 857623· CARRIER· EIN 58-2269994
⬇ PDF report

THOMAS CONCRETE OF SOUTH CAROLINA INC

448 LAKESHORE PWKY SUITE 205, ROCKHILL, SC, 29730(770) 431-3320fleet@thomasconcrete.comWILLIAM LAWSON PORTER
Vetting snapshot
Authority
Unknown
per SAFER
Insurance
No active filing
not required
Vehicle OOS
27.3%
above 22% national avg
Driver OOS
1.7%
below 6.7% national avg
Crashes 24mo
8
1 fatal
Red flags
None
nothing flagged
75
/ 100

Risk factors

Moderate riskVioCodes score
1 fatal crash in the last 24 months

A weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.

Roadside inspection performance

Out-of-service rate vs national average. Lower is better.

Vehicle11 inspections · 27.3% OOS · National 22%
Driver119 inspections · 1.7% OOS · National 6.7%

CSA performance breakdown

FMCSA · Sep 2026

119 inspections · 23 violations (1 OOS) · 3% of inspections had an OOS finding.

119
Inspections
23
Violations
1
OOS violations
10
Distinct codes

Violations by BASIC

click to filter codes

12
total

Most inspected in · top 3 states

  • SC27
  • NC2
  • GA1

Latest FMCSA SMS snapshot. Codes link to the lookup — severity weighting, contest angles, and the DataQs Drafter for each. Click a BASIC to filter the codes.

Recommendations

What’s driving each score, what to do about it, and where it could go.

Vehicle out-of-service rate exceeds the national average

High impact

Vehicle OOS rate is 33.3% vs the 22% national average. Carriers above the national OOS average draw more enforcement attention (audits, roadside stops) and can see higher insurance premiums.

What to do
  • Review recent inspections with out-of-service violations and fix the root causes with equipment and drivers
  • Run a preventative-maintenance program; periodically inspect tires, brakes and lights
  • Reinforce thorough pre-trip and post-trip inspections; retrain where needed

A high share of violations are occurring in Anderson County, SC

Medium impact

7 of 34 violations in the last 12 months (21%) came from inspections in Anderson County, SC. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.

What to do
  • Review the inspections from Anderson County, SC to spot recurring issues
  • Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical

Following / lane / reckless violations are the leading contributor to Unsafe Driving

Low impact

Estimated Unsafe Driving percentile of 10% is under the 65% line. In decent shape, but here's what's driving it.

What’s contributing12 violations (24 mo)
Following / lane / reckless8 viol76%
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other2× · 26%
  • 392.2-SLLMLState/Local Laws - Failure to maintain lane2× · 22%
  • 392.2-SLLILCState/Local Laws - Improper lane change2× · 22%
Seat belt2 viol12%
  • 392.16-DDriver - Failed to use seat belt while operating a CMV2× · 12%
Phone / texting1 viol9%
  • 392.2-SLLCPState/Local Laws - Operate a CMV while using a cellular phone1× · 9%
Speeding1 viol3%
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit1× · 3%
What to do
  • Defensive-driving refresher on following distance and lane discipline
Projected estimatecould improve up to 7 pts in ~12 mo
nowin 12 months
Current trend 50% followed 100% followed 65% line

Hours-of-Service Compliance needs attention

Low impact

Estimated Hours-of-Service Compliance percentile of 0% is under the 65% line. In decent shape, but here's what's driving it.

What to do
  • Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment

Controlled Substances/Alcohol needs attention

Low impact

Estimated Controlled Substances/Alcohol percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.

What to do
  • Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment

Lighting / lamps violations are the leading contributor to Vehicle Maintenance

Low impact

Estimated Vehicle Maintenance percentile of 41% is under the 80% line. In decent shape, but here's what's driving it.

What’s contributing11 violations · 4 OOS (24 mo)
Lighting / lamps2 OOS8 viol63%
  • 393.9A-LILLighting - Identification lamp(s) inoperative3× · 13%
  • 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.1× · 13%
  • 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on1× · 13%
Tires1 OOS1 viol25%
  • 393.75G-TAOWTires - All others, weight carried exceeds tire load limit1× · 25%
Brakes1 viol7%
  • 393.45D-BAir Brake - Audible air leak at a proper connection1× · 7%
Load securement1 OOS1 viol5%
  • 392.9A2-CCargo - Vehicle components or dunnage not secured1× · 5%
What to do
  • Walk the lights every pre-trip and carry spare bulbs/fuses; clean lenses and check the trailer plug
  • Prioritize the out-of-service items — they carry the heaviest weight
Projected estimatecould improve up to 28 pts in ~12 mo
nowin 12 months
Current trend 50% followed 100% followed 80% line

Recommendations are generated from the carrier’s public FMCSA roadside-inspection record. Percentiles and projections are VioCodes estimates, not official FMCSA figures. Informational, not legal advice.

90-day safety improvement plan

What this carrier has struggled with most in the last 90 days — where to focus now.

Trending worse
16
Inspections
14
Violations
1
Out-of-service
5
Clean
Where the violations are
Other 71%Unsafe Driving 14%Driver Fitness 7%Vehicle Maintenance 7%
Focus here first
1Other
10 violations · 71% of recent
  • 392.2-SLLS1×2State/Local Laws - Speeding 1-5 miles per hour over the speed limit
  • 392.2-SLLSR×2State/Local Laws - State registration/tag violation
  • 392.2-SLLEWG2State/Local Laws - Excessive weight - 2501-5000 lbs over on allowable gross weight
Do this
  • Coach speed and following distance — Unsafe Driving points are weighted heavily
  • Hands off the phone; always belt up
2Unsafe Driving
2 violations · 14% of recent
  • 392.2-SLLMLState/Local Laws - Failure to maintain lane
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other
Do this
  • Coach speed and following distance — Unsafe Driving points are weighted heavily
  • Hands off the phone; always belt up
3Driver Fitness
1 violation · 7% of recent
  • 383.23A2-LCDLNPLicense (CDL) - Operate a CMV while not in possession of a CDL on person
Do this
  • Track CDL, medical card, and endorsement expirations ahead of time
  • Keep the DQ file complete and the medical card on the driver
Repeat offenders (same code, multiple times)
🎓
Turn these into driver coaching — and prove it
FleetTrained (my companion project) makes branded, multilingual training videos for these exact violations — your driver watches and gets a completion certificate for the file.

Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.

Inspection & crash map

live · FMCSA MCMIS

Every inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).

179
Inspections
125
Violations
9
Out-of-service
220
CSA points
78
Crashes
3
States
cleanviolOOS

CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.

Equipment

VINs via NHTSA

56 distinct vehicles seen in this carrier’s roadside inspections.

37 truck 14 incomplete vehicle 5 trailer
2025 WESTERN STAR 47X Chassisseen 3×
5KKSBPFM7SLVU0726· A011330 SC
2022 OSHKOSH Concreteseen 2×
10TAFLGF9NS815769· P781033 SC
2020 VOLVO TRUCK VNLseen 2×
4V4NC9EHXLN265147· P769963 SC
2025 HEIL TRAILER INTERNATIONAL Heil Trailer Internationalseen 2×
3H4SS4120S3176349· TL97919 SC
2016 TEREX ADVANCE MIXER Terex Advance Mixerseen 2×
5DG8AU3TXG0013487· P745282 SC
2018 MACK GU (Granite)seen 2×
1M2AX04C9JM039826· P774582 SC
2021 OSHKOSH Concreteseen 2×
10TAFLGF9MS809226· P772051 SC
2016 TEREX ADVANCE MIXER Terex Advance Mixerseen 2×
5DG8AU5GXG0001517· P747385 SC
2022 OSHKOSH Concreteseen 2×
10TAFLGF8NS819585· P784627 SC
2016 TEREX ADVANCE MIXER Terex Advance Mixer
5DG8AU5GXG0001436· P745176 SC
2022 OSHKOSH Concrete
10TAFLGF4NS815730· P781577 SC
2019 MACK Granite
1M2GR2GC3KM010044· P852073 SC
2025 WESTERN STAR 47X Chassis
5KKSBPFM3SLVU0724· A011329 SC
2018 MACK GU (Granite)
1M2AX04C7JM039825· A000118 SC
2016 MACK GU (Granite)
1M2AX13C8GM032558· P509781 SC
2022 WESTERN STAR 4900
5KJJAEFG9NPNJ1503· A013749 SC
2025 HEIL TRAILER INTERNATIONAL Heil Trailer International
3H4SS4129S3117634· TL97810 SC
2025 WESTERN STAR 49X Chassis
5KJJBWFG8SLWB6535· A010820 SC
2025 HEIL TRAILER INTERNATIONAL Heil Trailer International
3H4SS4123S3176359· TL97832 SC
2007 FREIGHTLINER Columbia
1FUJA6CK37LX52021· P760145 SC
2019 OSHKOSH Concrete
10TAFLGF6KS791393· P669607 SC
2017 MACK GU (Granite)
1M2AX04C6HM033203· P747809 SC
2025 WESTERN STAR 47X Chassis
5KKSBPFM9SLVY7305· A012316 SC
2018 OSHKOSH Concrete
10TAFLGF6JS783728· A003362 SC
2024 OSHKOSH Concrete
10TAFLGF4RS829763· A011331 SC
2024 OSHKOSH Concrete
10TAFLGFXRS829766· A010847 SC
2016 TEREX ADVANCE MIXER Terex Advance Mixer
5DG8AU5G3G0001438· P745178 SC
2022 OSHKOSH Concrete
10TAFLGF4NS815727· P781574 SC
2024 OSHKOSH Concrete
10TAFLGF5RS829691· A010850 SC
2018 OSHKOSH Concrete
10TAFLGF0JS783708· P753528 SC

+ 26 more.

Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.

Crash record (US, last 24 months)

Total

8

Tow-away

7

Injury

6

Fatal

1

Company profile

FMCSA census

PRIVATE PROPERTY

Power units
274
on file (MCS-150)
Drivers
274
274 hold a CDL
Annual mileage
8.9M mi
reported 2025
Recordable crash rate
per million miles
How far they run · drivers by operating lane
  • Interstate · <100 mi253 drivers
  • Intrastate · <100 mi21 drivers
Company officer
WILLIAM LAWSON PORTER
Operation
Interstate
Registered since
2000-02-24
Last MCS-150 update
2026-01-07
Census status
Active

Fleet: 274 trucks · 21 owned tractors · 37 owned trailers.

Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.

Connections

carrier graph

This carrier shares VINs, phone numbers, officers or emails with 5 other carriers — review the connections below as part of your vetting.

5
Connected carriers
4
Fleet-transfer links
2
Most shared VINs
2
Strong links
Strong· 2
1
THOMAS CONCRETE OF GEORGIA INC
USDOT 577281Active· ATLANTA, GA
Strong
EmailPhoneShared VIN · 2
1TKP04225GW0671645DG8AU5T1G0013486
2
THOMAS CONCRETE OF CAROLINA INC
USDOT 1126447Active· CHARLOTTE, NC
Strong
OfficerEmailPhone

Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.

Activity history

2 events
  1. 01/07/2026MCS-150 update filed

    8.9M mi reported (2025)

  2. 02/24/2000Registered with FMCSA

    PRIVATE PROPERTY

Merged from FMCSA authority, insurance, out-of-service, and census records.

🚛

Operations

Classification

  • PRIVATE PROPERTY

Area served

  • Interstate

FMCSA safety rating

Rating
Satisfactory
Type
Compliance review
Rated
2026-05-14
Last review
2017-03-03
📄

MCS-150 registration

Form date
2026-01-07
Reported mileage
8,865,814 mi (2025)

Got a violation you want to contest?

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Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Sep 2026 · Page refreshed: Sep 21, 2026, 11:45 AM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.