Grabow & Sons Inc is an active interstate carrier based in Twin Brooks, SD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 3 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
| Total Power Units | 3 | ||
Distinct vehicles · 24 mo
vs 3 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 | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 97% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 93% | 92% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 5 states. Top state accounts for of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 4 | 1 | 2 |
| Driver Fitness |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| May 16, 2025 | MT | TRUCK TRACTOR | 0 | 0 |
| Mar 18, 2025 | TX | TRUCK TRACTOR | 3 | 1 |
| Mar 11, 2025 | SD | TRUCK TRACTOR | 1 | 1 |
| Feb 19, 2025 | NM | TRUCK TRACTOR | 0 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 9.50 | — |
| Driver Fitness | 1 | 1.42 | — |
| Controlled Substances | 0 | 0.00 | — |
| 1 |
| 1 |
| 1 |
| Dec 13, 2024 |
| MT |
| TRUCK TRACTOR |
| 1 |
| 1 |
| Jul 22, 2024 | CO | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 18, 2025 | 39345 | Brake tubing and hose adequacy | Vehicle Maintenance | Yes |
| Mar 18, 2025 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Mar 18, 2025 | 3939T | Inoperable tail lamp | Vehicle Maintenance | — |
| Mar 11, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Dec 13, 2024 | 393106C1C | Cargo - Cargo not immobilized or secured against rolling | Vehicle Maintenance | Yes |