Loiseau Construction Inc (DOT# 475399) – FMCSA Carrier Profile

DOT# 475399● Active
Updated monthly · 2026-03-09

This carrier is active with a Conditional safety rating and no crashes reported.

Loiseau Construction Inc is a registered motor carrier with the FMCSA under USDOT number 475399. The company operates from Flandreau, SD and maintains an active operating status with 36 power units and 33 drivers on record.

Safety Rating

FMCSA Safety Rating
Conditional
Rated: May 21, 2019

Loiseau Construction Inc holds a "Conditional" safety rating from the Federal Motor Carrier Safety Administration (FMCSA). This rating indicates that some safety deficiencies were found during the most recent compliance review conducted by FMCSA. View official FMCSA record →

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Company Information

Address1002 West Elm Avenue, Flandreau, SD, 57028-1403
Phone(605) 997-2511
Entity TypePrivate Property
OperationInterstate
Power Units36(Medium carrier)
Drivers33
MCS-150 FiledFebruary 20, 2026
Annual Mileage1,390,500 mi (2025)
All carriers in South DakotaCarriers in Flandreau, SD

Inspection Summary

All-time Inspections
All-time
9
Total
4
OOS
1
Driver OOS
3
Vehicle OOS
9 inspections — relatively low volume, which may indicate a smaller or newer carrier.
OOS Rate44.44%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 44.4% — above the national vehicle OOS average of ~21%. Review BASICS scores below.

Crash History

No crashes reported (FMCSA data)

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.
1.4
HOS Compliance
Tracks hours-of-service violations, including driving beyond legal limits without rest.
2.0
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.
11.6
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

Loiseau Construction Inc is a medium-sized motor carrier operating in South Dakota. With 9 total inspections on record, the carrier has an out-of-service rate of 44.4%, which exceeds the national average of approximately 21%. No crashes have been reported in FMCSA records, which is a positive indicator for shippers and brokers evaluating this carrier.

A Conditional rating from the FMCSA indicates that Loiseau Construction Inc has some safety deficiencies that need to be addressed. Shippers and brokers should review the BASICS scores carefully.

The company operates 36 power units and employs 33 drivers. This is a mid-sized operation relative to the broader carrier market.

Frequently Asked Questions

What is USDOT Number 475399?
USDOT number 475399 is assigned to Loiseau Construction Inc, an active motor carrier registered with the FMCSA, based in Flandreau, SD.
What is the safety rating of Loiseau Construction Inc?
Loiseau Construction Inc has a safety rating of Conditional as of May 21, 2019.
How many inspections has Loiseau Construction Inc had?
Loiseau Construction Inc has recorded 9 total inspections with 4 out-of-service orders, representing an OOS rate of 44.44%.
Where is Loiseau Construction Inc located?
Loiseau Construction Inc is headquartered at 1002 West Elm Avenue, Flandreau, SD 57028-1403.
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# 475399 · Last updated: 2026-03-09. View official FMCSA record →