Heffernan Trucking Llc is an active interstate carrier based in Shullsburg, WI.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 11 | 0 | 0 |
| Tractors | 10 | 1 | 0 |
| Trailers | 39 | 0 | 0 |
| Total Power Units | 11 | ||
Distinct vehicles · 24 mo
vs 11 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 77% | 93% | Worse than most peers |
| HOS Compliance | 90% | 97% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 55% | 86% | Around peer average |
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 | 0 | — | 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 |
|---|---|---|---|
| Unsafe Driving | 3 | 1 | 0 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 28, 2025 | SD | TRUCK TRACTOR | 0 | 0 |
| Sep 3, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Jul 14, 2025 | IN | TRUCK TRACTOR | 0 | 0 |
| Mar 31, 2025 | IL | TRUCK TRACTOR | 0 | 0 |
| Feb 17, 2025 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 1.22 | — |
| HOS Compliance | 1 | 0.05 | — |
| Vehicle Maintenance | 2 | 1.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 7 states. Top state WI accounts for 31% of activity. Activity outside home state (WI): 69%.
+2 other states with fewer inspections
| Vehicle Maintenance | 2 | 0 | 0 |
| Hours-of-Service Compliance | 1 | 0 | 0 |
| ND |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Jan 2, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Dec 4, 2024 | WY | TRUCK TRACTOR | 0 | 0 |
| Nov 12, 2024 | WI | TRUCK TRACTOR | 0 | 0 |
| Nov 3, 2024 | SD | TRUCK TRACTOR | 0 | 0 |
| Aug 19, 2024 | IL | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Sep 3, 2025 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Jan 2, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jun 26, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jun 26, 2024 | 39522GELDMFV | HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position. | Hours-of-Service Compliance | — |
| Jun 13, 2024 | 3922SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Unsafe Driving | — |
| May 5, 2024 | 39345 | Brake tubing and hose adequacy | Vehicle Maintenance | — |