Wisconsin Power and Light Company (DOT# 166001) – FMCSA Carrier Profile

doing business as ALLIANT ENERGY
DOT# 166001● Active
Updated monthly · 2026-03-09

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

Wisconsin Power and Light Company is a registered motor carrier with the FMCSA under USDOT number 166001. The company operates from Dubuque, IA and maintains an active operating status with 604 power units and 344 drivers on record.

Safety Rating

FMCSA Safety Rating
Not Rated

No formal safety rating has been assigned to Wisconsin Power and Light Company by the FMCSA. View official FMCSA record →

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Company Information

Address8000 Chavenelle Road, Dubuque, IA, 52002-9670
Phone(608) 458-4210
Entity TypePrivate Property
OperationInterstate
Power Units604(Large carrier)
Drivers344
MCS-150 FiledFebruary 2, 2026
Annual Mileage6,785,862 mi (2025)
All carriers in IowaCarriers in Dubuque, IA

Inspection Summary

All-time Inspections
All-time
14
Total
4
OOS
0
Driver OOS
4
Vehicle OOS
14 inspections — relatively low volume, which may indicate a smaller or newer carrier.
OOS Rate28.57%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 28.6% — above the national vehicle OOS average of ~21%. Review BASICS scores below.

Crash History

Crash Records
All-time
4
Total
0
Fatal
3
Injuries
0
Tow-Away
4 crashes on record. This is within a common range for active carriers — assess relative to fleet size and inspection volume.

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
0.1
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.
0.0
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.
7.0
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

Wisconsin Power and Light Company is a large motor carrier operating in Iowa. With 14 total inspections on record, the carrier has an out-of-service rate of 28.6%, which exceeds the national average of approximately 21%. 4 crashes have been reported. Review crash details alongside fleet size and inspection history before making hiring decisions.

Wisconsin Power and Light Company 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 604 power units and employs 344 drivers. This fleet size places it among the larger carriers in the FMCSA registry.

Frequently Asked Questions

What is USDOT Number 166001?
USDOT number 166001 is assigned to Wisconsin Power and Light Company, an active motor carrier registered with the FMCSA, based in Dubuque, IA.
How many inspections has Wisconsin Power and Light Company had?
Wisconsin Power and Light Company has recorded 14 total inspections with 4 out-of-service orders, representing an OOS rate of 28.57%.
Where is Wisconsin Power and Light Company located?
Wisconsin Power and Light Company is headquartered at 8000 Chavenelle Road, Dubuque, IA 52002-9670.
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# 166001 · Last updated: 2026-03-09. View official FMCSA record →