Mayfield Site Contractors Inc (DOT# 2144345) – FMCSA Carrier Profile

DOT# 2144345● Active
Updated monthly · 2026-03-09

This carrier is active. Review the inspection and crash data below.

Mayfield Site Contractors Inc is a registered motor carrier with the FMCSA under USDOT number 2144345. The company operates from King Of Prussia, PA and maintains an active operating status with 6 power units and 5 drivers on record.

Safety Rating

FMCSA Safety Rating
Not Rated

No formal safety rating has been assigned to Mayfield Site Contractors Inc by the FMCSA. View official FMCSA record →

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Company Information

Address596 Swedeland Road, King Of Prussia, PA, 19406
Phone(610) 279-2000
Entity TypePrivate Property
OperationInterstate
Power Units6(Small carrier)
Drivers5
MCS-150 FiledMay 23, 2024
Annual Mileage109,212 mi (2023)
All carriers in PennsylvaniaCarriers in King Of Prussia, PA

Inspection Summary

All-time Inspections
All-time
8
Total
1
OOS
1
Driver OOS
0
Vehicle OOS
8 inspections — relatively low volume, which may indicate a smaller or newer carrier.
OOS Rate12.50%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 12.5% — approaching the national vehicle OOS average of ~21%.

Crash History

Crash Records
All-time
1
Total
0
Fatal
1
Injuries
0
Tow-Away
1 crash recorded. Low count, but crash data should always be reviewed alongside inspection history.

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
8.2
Unsafe Driving
Measures violations related to speeding, reckless driving, and improper lane changes.
0.0
HOS Compliance
Tracks hours-of-service violations, including driving beyond legal limits without rest.
1.6
Driver Fitness
Reflects issues with driver qualifications, licenses, and medical certifications.
0.0
Controlled Substances
Captures drug and alcohol violations, including failed or refused tests.
0.0
Vehicle Maintenance
Reflects brake, tire, lighting, and other equipment-related inspection violations.
Scores above 65 (general freight) or 50 (passenger/hazmat) trigger an FMCSA Alert. Higher scores indicate more safety risk. National median is approximately 20–30 for active carriers.
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Carrier Insight

Mayfield Site Contractors Inc is a small motor carrier operating in Pennsylvania. With 8 total inspections on record, the carrier has an out-of-service rate of 12.5%, which is below the national average of approximately 21%. 1 crash has been reported. Review crash details alongside fleet size and inspection history before making hiring decisions.

Mayfield Site Contractors Inc has not received a formal safety rating from the FMCSA. This is common for smaller or newer carriers and does not necessarily indicate a safety problem.

The company operates 6 power units and employs 5 drivers. This is a small carrier operation.

Frequently Asked Questions

What is USDOT Number 2144345?
USDOT number 2144345 is assigned to Mayfield Site Contractors Inc, an active motor carrier registered with the FMCSA, based in King Of Prussia, PA.
How many inspections has Mayfield Site Contractors Inc had?
Mayfield Site Contractors Inc has recorded 8 total inspections with 1 out-of-service orders, representing an OOS rate of 12.50%.
Where is Mayfield Site Contractors Inc located?
Mayfield Site Contractors Inc is headquartered at 596 Swedeland Road, King Of Prussia, PA 19406.
What does "Not Rated" mean?
"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.
Is zero crashes always a good sign?
Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.
What is a normal OOS rate?
The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.
How often is FMCSA data updated?
FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 2144345 · Last updated: 2026-03-09. View official FMCSA record →