JOHN J BRENNAN CONSTRUCTION CO INC

AUTHORIZED
70 PLATT RD, SHELTON, CT, 06484|(203) 929-6314

USDOT

142105

MC Number

N/A

Fleet Size

52

Total Drivers

47

Last updated: March 16, 2026

Safety overview

JOHN J BRENNAN CONSTRUCTION CO INC is a mid-size interstate motor carrier based in SHELTON, Connecticut, operating 52 power units with 47 drivers. 1 of their 5 BASIC scores sits above the 75th percentile intervention threshold. The rest fall within acceptable ranges. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. They have 1 crash on file (1 with injuries). FMCSA records show 3 inspections for this carrier.

BASIC scores

SMS Percentiles

Higher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.

Unsafe Driving
79%
HOS / Fatigue
5%
👤Driver Fitness
5%
Controlled Substances
6%
🔧Vehicle Maintenance
4%

Out-of-service rates vs. national average

An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.

Driver OOS rate0.0%
National average5.5%

For reference, the average driver OOS rate in Connecticut is 15.5% and the average vehicle OOS rate is 31.1% across 20,376 carriers.

Company details

Entity Type
N/A
Carrier Operation
Interstate
Operation Classification
Private (Property)
Cargo Carried
N
Hazmat
No
Safety Rating Date
N/A

What are BASIC scores?

FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.

A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.

Unsafe driving
Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
HOS / Fatigue
Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
Driver fitness
Licensing problems, expired medical certificates, and other driver qualification issues.
Controlled substances
Drug and alcohol testing violations, possession, or impairment.
Vehicle maintenance
Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
Crash indicator
Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.

Inspections

3

Total

100%

Driver %

Driver Inspections3
Vehicle Inspections0
Driver OOS Rate0.0%

Insurance on file

No insurance records on file with FMCSA.

Crash history

1

Total Crashes

Fatal Crashes0
Injury Crashes1
Tow Crashes1

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Frequently asked questions

Is JOHN J BRENNAN CONSTRUCTION CO INC authorized to operate?

Yes. JOHN J BRENNAN CONSTRUCTION CO INC (USDOT #142105) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.

What is JOHN J BRENNAN CONSTRUCTION CO INC's safety record?

JOHN J BRENNAN CONSTRUCTION CO INC has 1 BASIC score above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.

How many trucks does JOHN J BRENNAN CONSTRUCTION CO INC operate?

JOHN J BRENNAN CONSTRUCTION CO INC operates 52 power units with 47 drivers on file. That puts them in the mid-size range.

Does JOHN J BRENNAN CONSTRUCTION CO INC transport hazardous materials?

No. JOHN J BRENNAN CONSTRUCTION CO INC does not have a hazardous materials flag in the FMCSA database.

Where is JOHN J BRENNAN CONSTRUCTION CO INC located?

JOHN J BRENNAN CONSTRUCTION CO INC is based in SHELTON, Connecticut at 70 PLATT RD, 06484. Phone: (203) 929-6314.

What are JOHN J BRENNAN CONSTRUCTION CO INC's out-of-service rates?

JOHN J BRENNAN CONSTRUCTION CO INC's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign.