Mcmahon Carriers Incorporated is an active interstate carrier based in Oakbrook, IL.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 84 | 0 | 0 |
| Tractors | 84 | 0 | 0 |
| Trailers | 72 | 0 | 245 |
| Total Power Units | 84 | ||
Distinct vehicles · 24 mo
vs 84 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 | 41% | 85% | Around peer average |
| HOS Compliance | 28% | 85% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 68% | 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 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 2 | 2 |
| Jul 1, 2024 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 13 | 7 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | WI | TRUCK TRACTOR | 0 | 0 |
| Feb 4, 2026 | IL | TRUCK TRACTOR | 0 | 0 |
| Jan 31, 2026 | IN | TRUCK TRACTOR | 1 | 0 |
| Jan 8, 2026 | WI | TRUCK TRACTOR | 0 | 0 |
| Jan 8, 2026 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 12 | 1.30 | — |
| HOS Compliance | 3 | 0.06 | — |
| Vehicle Maintenance | 7 | 4.72 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 6 states. Top state WI accounts for 39% of activity. Activity outside home state (IL): 69%.
+1 other state with fewer inspections
| 5 |
| Unsafe Driving | 12 | 5 | 0 |
| Hours-of-Service Compliance | 6 | 0 | 0 |
| IL |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Jan 7, 2026 | IN | TRUCK TRACTOR | 0 | 0 |
| Dec 22, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Dec 17, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Dec 9, 2025 | IN | TRUCK TRACTOR | 1 | 0 |
| Nov 25, 2025 | IN | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 31, 2026 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Dec 22, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Dec 17, 2025 | 3922SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Unsafe Driving | — |
| Dec 9, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Oct 9, 2025 | 3922SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Unsafe Driving | — |
| Oct 7, 2025 | 3922SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | Unsafe Driving | — |
| Sep 30, 2025 | 3922SLLML | State/Local Laws - Failure to maintain lane | Unsafe Driving | — |
| Jul 8, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Jul 8, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Jul 8, 2025 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |