Maynard Monsen & Son Inc (DOT# 1224256) – FMCSA Carrier Profile
DOT# 1224256● Active
Updated monthly · 2026-03-09
This carrier is active with no crashes on record.
Maynard Monsen & Son Inc is a registered motor carrier with the FMCSA under USDOT number 1224256. The company operates from Menomonee Falls, WI and maintains an active operating status with 16 power units and 11 drivers on record.
Safety Rating
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Company Information
AddressN56w16421 Silver Spring Dr, Menomonee Falls, WI, 53051
Phone(262) 252-3929
Entity TypePrivate Property
OperationIntrastate (Non-Hazmat)
Power Units16(Medium carrier)
Drivers11
MCS-150 FiledApril 16, 2025
Annual Mileage500,000 mi (2025)
Inspection Summary
All-time Inspections
All-time5
Total
6
OOS
4
Driver OOS
2
Vehicle OOS
5 inspections — relatively low volume, which may indicate a smaller or newer carrier.
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 120.0% — above the national vehicle OOS average of ~21%. Review BASICS scores below.
Crash History
✅No crashes reported (FMCSA data)
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Frequently Asked Questions
What is USDOT Number 1224256?
USDOT number 1224256 is assigned to Maynard Monsen & Son Inc, an active motor carrier registered with the FMCSA, based in Menomonee Falls, WI.
How many inspections has Maynard Monsen & Son Inc had?
Maynard Monsen & Son Inc has recorded 5 total inspections with 6 out-of-service orders, representing an OOS rate of 120.00%.
Where is Maynard Monsen & Son Inc located?
Maynard Monsen & Son Inc is headquartered at N56w16421 Silver Spring Dr, Menomonee Falls, WI 53051.
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# 1224256 · Last updated: 2026-03-09. View official FMCSA record →