DBA: Rock Central Llc
Rock Central Llc Railroad Division is an active interstate carrier based in Mason City, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
| Total Power Units | 4 | ||
Distinct vehicles · 24 mo
vs 4 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 | 90% | 92% | 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 | 84% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 2 states. Top state IA accounts for 50% of activity. Activity outside home state (IA): 50%.
| 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 | 1 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jul 15, 2025 | IA | STRAIGHT TRUCK | 4 | 1 |
| May 13, 2025 | WI | STRAIGHT TRUCK | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jul 15, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 4.66 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 9.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Unsafe Driving |
| 1 |
| 1 |
| 0 |
| 39216 |
| Failing to use seat belt while operating a CMV |
| Unsafe Driving |
| — |
| Jul 15, 2025 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |
| Jul 15, 2025 | 39381 | Horn inoperative | Vehicle Maintenance | — |
| Jul 15, 2025 | 39395A | No/discharged/unsecured fire extinguisher | Vehicle Maintenance | — |
| May 13, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |