Southern Wisconsin Contracting Llc is an active interstate carrier based in Monroe, WI.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 12 | 0 | 0 |
| Tractors | 12 | 0 | 0 |
| Trailers | 23 | 0 | 0 |
| Total Power Units | 12 | ||
Distinct vehicles · 24 mo
vs 12 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 99% | 99% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 99% | 99% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 0 | — | 6.67% |
| Vehicle | 0 | 3 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 30 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 3, 2026 | WI | TRUCK TRACTOR | 8 | 3 |
| Feb 26, 2026 | WI | TRUCK TRACTOR | 1 | 0 |
| Jan 12, 2026 | WI | TRUCK TRACTOR | 1 | 0 |
| Sep 2, 2025 | WI | TRUCK TRACTOR | 8 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 9 | 9.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 5 | 21.90 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 1 state. Top state WI accounts for 100% of activity. Activity outside home state (WI): 0%.
| 3 |
| Unsafe Driving | 9 | 4 | 0 |
| Aug 11, 2025 | WI | TRUCK TRACTOR | 0 | 0 |
| May 16, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| May 5, 2025 | WI | TRUCK TRACTOR | 8 | 0 |
| Apr 1, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Mar 20, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Dec 2, 2024 | WI | TRUCK TRACTOR | 6 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 3, 2026 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Mar 3, 2026 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Mar 3, 2026 | 39345DBAAL | Air Brake - Audible air leak at other than a proper connection | Vehicle Maintenance | Yes |
| Mar 3, 2026 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Mar 3, 2026 | 39348ABLMCBAD | Air Disc Brake - Loose chamber/caliper mounting bolt(s) | Vehicle Maintenance | — |
| Mar 3, 2026 | 39355C1B | Air Brake - Truck-tractor manufactured on or after March 1 1997 not equipped with an ABS system. System does not function or indicates a fault. | Vehicle Maintenance | — |
| Mar 3, 2026 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Mar 3, 2026 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | Yes |
| Feb 26, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Jan 12, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |