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SUPERIOR SHORING AND DRILLING
DBA: Mcmahon Engineering Construction
Escondido, CA
CarrierChk vetting signal
Review recommended
Elevated Out-of-Service Rate
42.9% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 78% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
See details ↓
FMCSA status: Active registration · no operating authority · DOT 2904837
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
42.9% OOS · 11 inspections on record
Flags · 1
Elevated Out-of-Service Rate
42.9% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 78% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- Vehicle out-of-service rate 75.0% — above the 20.7% national average
- Driver out-of-service rate 0.0% — below the 5.5% national average
- 11 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
2904837
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
July 14, 2025
FMCSA Registration
June 29, 2016
Annual Mileage
12,000 mi (2022)
Contact Information
Address
634 Rock Springs Road, Escondido, CA 92025
Phone
Email
Website
Owner / Officer
Ashley Mcmahon
Officer 2
Brian Mcmahon
Cargo Types
General FreightBuilding MaterialsMachinery/Large ObjectsConstruction MaterialsOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
11
Driver Inspections
8
Vehicle Inspections
7
Out-of-Service Violations
7
Violations by Category
Vehicle Maintenance18
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate75.0% · national avg 20.7%
⚠ Above national average (54.3pp higher)
42.9% of 7 inspections in the last 24 months put a driver or vehicle out of service —
78th percentile among carriers with 5–9 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
4 of 6 inspections
Unsafe Driving
0 of 5 inspections
Hours of Service
0 of 5 inspections
Driver Fitness
0 of 5 inspections
Controlled Substances
0 of 5 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA11
Fleet & Equipment (6)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~2
of 2 reported to FMCSA
Trailers
~4
seen at inspection
Equipment types observed
Flatbed
2
Tractor
2
Semi-trailer
1
Trailer (type not listed)
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2019 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X7KR240935 | 5 | 2 |
| 2013 Kenworth T6 Series | Tractor · Class 8 | 1XKAD49X0DR343994 | 4 | 2 |
| Kaly | Semi-trailer | 1K9E45237H1005126 | 3 | 2 |
| 1995 Transcraft | Flatbed · 45 ft | 1TTF45209S1047425 | 3 | 1 |
| 2026 Cozad | Flatbed · 40 ft | 1C9CGW426TS772044 | 1 | — |
| 2019 Trailmobile Trailmobile Trailer | Trailer (type not listed) | 1PTW71TL6K9009088 | 1 | 1 |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (11)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| June 24, 2026 | NBJJ009985 | CA, CA | I | 1 | — | — | Truck Tractor |
KENWORTH |
1XKAD49X0DR343994 |
CA 9F54212 |
| 393.45D-B | Air Brake - Audible air leak at a proper connection | Brakes All Others | ||||||||
| March 17, 2026 | NAZ0002465 | BORDER DIVISION, CA | V | — | — | — | Truck Tractor Semi-trailer |
KENWORTH TRANSCRAFT |
1XKAD49X0DR343994 1TTF45209S1047425 |
CA 9F54212 CA 1VM5832 |
| March 17, 2026 | NAZ0002464 | BORDER DIVISION, CA | V | — | — | — | Truck Tractor Semi-trailer |
KENWORTH COZAD |
1XKDD40X7KR240935 1C9CGW426TS772044 |
CA 9E87217 CA 4XH7112 |
| March 11, 2026 | NC2K010165 | DESERT HILLS IF, CA | I | 4 | 2 | SUPERIOR SHORING | Truck Tractor Semi-trailer |
KENWORTH TRAILMOBILE |
1XKAD49X0DR343994 1PTW71TL6K9009088 |
CA 9F54212 CA 4BY4540 |
| 393.207A-SAPPAS | OOSSuspension - Axle positioning part cracked/broken/loose/missing resulting in axle shift | Suspension | ||||||||
| 393.104F1-C | OOSCargo - Knotted tiedown | Tiedown | ||||||||
| 396.5B-HWSL | Hubs - Wheel seal leaking | Wheels Studs Clamps Etc. | ||||||||
| 393.9A-LLPL | Lighting - License plate lamp inoperative | Clearance Identification Lamps/Other | ||||||||
| February 19, 2026 | UCQO004328 | RAINBOW IF, CA | III | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH TRANSCRAFT |
1XKDD40X7KR240935 1TTF45209S1047425 |
CA 9E87217 CA 1VM5832 |
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| February 2, 2026 | NFL6000645 | RAINBOW I-15, CA | I | 5 | 2 | — | Truck Tractor Semi-trailer |
KENWORTH TRANSCRAFT |
1XKAD49X0DR343994 1TTF45209S1047425 |
CA 9F54212 CA 1VM5832 |
| 393.45B2-BHTD | OOSAir Brake - Hose/tubing damage into the outer reinforcement ply. | Brakes All Others | ||||||||
| 396.3A1-BALR | OOSAir Brake - Fails air loss rate test | Brakes All Others | ||||||||
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Emergency Equipment | ||||||||
| 396.3A1-ALBV | Air Brake - Any leak from a brake valve | Brakes All Others | ||||||||
| 393.9A-LCL | Lighting - Clearance lamp(s) inoperative | Clearance Identification Lamps/Other | ||||||||
| December 2, 2024 | UDCO000976 | RAINBOW IF, CA | II | 2 | 1 | — | Truck Tractor Semi-trailer |
KENWORTH KALY |
1XKDD40X7KR240935 1K9E45237H1005126 |
CA 9E87217 CA 4TE5392 |
| 393.9B-LRLIWR | OOSLighting - Tail lamp - Both lamps on rearmost vehicle inoperative when required to be on | Lighting | ||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| June 10, 2024 | NEQ1001329 | RAINBOW IF, CA | I | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH KALY |
1XKDD40X7KR240935 1K9E45237H1005126 |
CA 9E87217 CA 4TE5392 |
| 392.2 | Violation of Local Laws - Explain | |||||||||
| June 6, 2024 | NEQ1001318 | RAINBOW IF, CA | I | 7 | 2 | — | Truck Tractor Semi-trailer |
KENWORTH KALY |
1XKDD40X7KR240935 1K9E45237H1005126 |
CA 9E87217 CA 4TE5392 |
| 396.5B-HWSLIW | OOSHubs - Wheel seal leaking - inner wheel | Wheels Studs Clamps Etc. | ||||||||
| 396.5B-HWSLIW | OOSHubs - Wheel seal leaking - inner wheel | Wheels Studs Clamps Etc. | ||||||||
| 393.45D | Brake connections with leaks or constrictions | Brakes All Others | ||||||||
| 393.45B2 | Brake hose or tubing chafing and/or kinking | Brakes All Others | ||||||||
| 396.5A | Failing to ensure that vehicle is properly lubricated | Other Vehicle Defect | ||||||||
| 393.70B1I-C | Fifth wheel cracked or a gap caused by corrosion 1/8 inch (3.2 mm) or more in width | Coupling Devices | ||||||||
| 392.2 | Violation of Local Laws - Explain | |||||||||
| April 4, 2024 | NAFA006614 | RAINBOW IF, CA | I | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH UTIL |
1XKAD49X0DR343994 7L93924005 |
CA 9F54212 CA 4PD6175 |
| 393.9 | Inoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: November 1, 2026.
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