What is MC number 1721438?

MC number 1721438 is assigned to Karrenbrock Construction Inc, a registered motor carrier with the FMCSA under USDOT number 1667753.

Is Karrenbrock Construction Inc Safe? DOT 1667753 – Safety Rating, Crashes & Violations

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

Karrenbrock Construction Inc is a registered motor carrier with the FMCSA under USDOT number 1667753. The company operates from Wentzville, MO and maintains an active operating status with 41 power units and 39 drivers on record.

Safety Rating

FMCSA Safety Rating

— Not Rated

No formal safety rating has been assigned to Karrenbrock Construction Inc by the FMCSA. View official FMCSA record →

Inspection Summary

All-time Inspections

All-time

Total

OOS

Driver OOS

Vehicle OOS

25 inspections reflects moderate road activity.

OOS Rate88.00%

The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 88.0% — above the national vehicle OOS average of ~21%. Review BASICS scores below.

Crash History

Crash Records

All-time

Total

Fatal

Injuries

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

0.7

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.

0.4

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.

9.7

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.

Other Carriers in Wentzville, MO

View all carriers in Wentzville, MO →

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Largest Trucking Companies →Safest Trucking Companies →

Carrier Insight

Karrenbrock Construction Inc is a medium-sized motor carrier operating in Missouri. With 25 total inspections on record, the carrier has an out-of-service rate of 88.0%, which exceeds the national average of approximately 21%. 1 crash has been reported. Review crash details alongside fleet size and inspection history before making hiring decisions.

Karrenbrock Construction 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 41 power units and employs 39 drivers. This is a mid-sized operation relative to the broader carrier market.

Frequently Asked Questions

What is USDOT Number 1667753?

USDOT number 1667753 is assigned to Karrenbrock Construction Inc, an active motor carrier registered with the FMCSA, based in Wentzville, MO.

How many inspections has Karrenbrock Construction Inc had?

Karrenbrock Construction Inc has recorded 25 total inspections with 22 out-of-service orders, representing an OOS rate of 88.00%.

Where is Karrenbrock Construction Inc located?

Karrenbrock Construction Inc is headquartered at 4481 Hwy Z, Wentzville, MO 63385.

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.

What is the MC number for Karrenbrock Construction Inc?

The MC number for Karrenbrock Construction Inc is MC# 1721438. The MC number is issued by the FMCSA and authorizes carriers to operate in interstate commerce.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 1667753 · Last updated: 2026-03-09. View official FMCSA record →

Karrenbrock Construction Inc (DOT# 1667753 · MC# 1721438) – FMCSA Carrier Profile