TRENCH SHORING CO
Legal: TOM MALLOY CORP
Risk factors
Low riskVioCodes scoreA 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.
CSA performance breakdown
FMCSA · Sep 2026102 inspections · 23 violations (7 OOS) · 23% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.45D-BVehicle Maintenance
Air Brake - Audible air leak at a proper connection
8
2× · sev 4
- 2392.2-SLLTCDUnsafe Driving
State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other
5
1× · sev 5
- 3393.9A-LCLVehicle Maintenance
Lighting - Clearance lamp(s) inoperative
4
2× · sev 2
- 4396.3A1-ALBVVehicle Maintenance
Air Brake - Any leak from a brake valve
4
1× · sev 4
- 5393.53B-BVehicle Maintenance
Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
4
1× · sev 4
- 6393.110B1-CVehicle Maintenance1 OOS
Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and 1,100 lbs. or less
3
1× · sev 3
- 7393.95F
Emergency Equipment - Stopped vehicle warning devices missing or improper
1
1×
- 8392.2-SLLSR
State/Local Laws - State registration/tag violation
1
1×
- 9396.3A1-BOS1 OOS
Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination
1
1×
- 10393.47E
Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
1
1×
Most inspected in · top 2 states
- CA29
- AZ1
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.
Safety trends & next-run projection
Where each BASIC sits today, how it ranks against peers, and where it’s heading at the next monthly SMS run.
FMCSA keeps the Crash Indicator percentile private, and its measure needs a power-unit history public data doesn’t expose — so it can’t be estimated yet. VioCodes now records power units monthly, so a calibrated Crash estimate should light up over time. These are the public crash facts (all state-reportable crashes count, regardless of fault).
“Projected” estimates the next monthly SMS run from inspections on record now. FMCSA marks the BASIC percentile itself “Not Public,” so the percentile shown is a VioCodes estimate of how the carrier ranks against its peers, presented as a likely range (shaded on the gauge) and calibrated against real carriers. Crash Indicator has no public estimate — FMCSA keeps its measures fully private. Estimates, not official FMCSA figures. Not affiliated with FMCSA.
Recommendations
What’s driving each score, what to do about it, and where it could go.
A high share of violations are occurring in Riverside County, CA
Medium impact12 of 39 violations in the last 12 months (31%) came from inspections in Riverside County, CA. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.
- Review the inspections from Riverside County, CA 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 impactEstimated Unsafe Driving percentile of 4% is under the 65% line. In decent shape, but here's what's driving it.
- 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other3× · 100%
- Defensive-driving refresher on following distance and lane discipline
Hours-of-Service Compliance needs attention
Low impactEstimated Hours-of-Service Compliance percentile of 0% is under the 65% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Controlled Substances/Alcohol needs attention
Low impactEstimated Controlled Substances/Alcohol percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Brakes violations are the leading contributor to Vehicle Maintenance
Low impactEstimated Vehicle Maintenance percentile of 23% is under the 80% line. In decent shape, but here's what's driving it.
- 393.45D-BAir Brake - Audible air leak at a proper connection3× · 8%
- 393.45B2-B-VACBrake - Vacuum hose(s) or line(s) restricted/abraded/chafed through outer cover-to-cord ply crimped/cracked/broken2× · 7%
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× · 6%
- 393.100B-CCargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV1× · 8%
- 393.110B3-CCargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet1× · 4%
- 393.110B1-CCargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and 1,100 lbs. or less1× · 4%
- 393.9A-LHLILighting - Headlamp(s) - Any inoperative2× · 7%
- 393.9A-LCLLighting - Clearance lamp(s) inoperative3× · 4%
- 393.9A-LILLighting - Identification lamp(s) inoperative2× · 2%
- 393.75A3-TAOLTISTires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS1× · 9%
- Check brake adjustment and listen for air leaks every pre-trip; put brakes on the PM schedule
- Fix air-loss and warning-light faults before dispatch — don’t “drive it in”
- Prioritize the out-of-service items — they carry the heaviest weight
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.
- 393.75A3-TAOLTISTires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS · OOS
- 393.9A-LHLILighting - Headlamp(s) - Any inoperative
- 393.110B3-CCargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet · OOS
- Gauge/thump every tire on the walk-around, including inner duals
- Replace before tread hits the limit and correct low pressure immediately
Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.
Inspection & crash map
live · FMCSA MCMISEvery inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).
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 NHTSA51 distinct vehicles seen in this carrier’s roadside inspections.
+ 21 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
1
Tow-away
1
Injury
1
Fatal
0
Company profile
FMCSA censusPRIVATE PROPERTY
- Interstate · 100+ mi15 drivers
- Intrastate · 100+ mi110 drivers
- Company officer
- THOMAS E MALLOY
- Operation
- Interstate
- Registered since
- 2002-11-27
- Last MCS-150 update
- 2026-01-26
- Census status
- Active
Fleet: 145 trucks · 53 owned tractors · 100 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 graphThis carrier shares VINs with 3 other carriers — review the connections below as part of your vetting.
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- 01/26/2026MCS-150 update filed
3.6M mi reported (2025)
- 11/27/2002Registered 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
- Non-ratable review
- Rated
- 2006-07-24
- Last review
- 2024-07-19
MCS-150 registration
- Form date
- 2026-01-26
- Reported mileage
- 3,626,793 mi (2025)
Changes on file
FMCSA census historyOctober, 2023
- Fleet grew to 128 power units
- Drivers grew to 121
November, 2022
- Moved to COMPTON, CA
January, 2021
First on-record entry — TOM MALLOY CORP, ,
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