DBA: Rhinehart Excavating
Knoll Brothers Enterprises Llc is an active intrastate non-hazmat carrier based in Dallas Center, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 12 | 0 | 0 |
| Tractors | 2 | 0 | 0 |
| Trailers | 8 | 0 | 0 |
| Total Power Units | 14 | ||
Distinct vehicles · 24 mo
vs 14 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 | 76% | 87% | 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 | 80% | 93% | 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 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Unsafe Driving | 5 | 1 | 0 |
| Vehicle Maintenance | 2 | 2 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Nov 4, 2025 | IA | STRAIGHT TRUCK | 1 | 0 |
| Sep 26, 2025 | IA | STRAIGHT TRUCK | 0 | 0 |
| Aug 25, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Aug 19, 2025 | IA | STRAIGHT TRUCK | 1 | 0 |
| Jan 24, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 5 | 2.20 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 10.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 1 state. Top state IA accounts for 100% of activity. Activity outside home state (IA): 0%.
| IA |
| STRAIGHT TRUCK |
| 1 |
| 0 |
| Dec 2, 2024 | IA | STRAIGHT TRUCK | 1 | 0 |
| Sep 20, 2024 | IA | STRAIGHT TRUCK | 0 | 0 |
| Aug 13, 2024 | IA | STRAIGHT TRUCK | 1 | 1 |
| Jul 1, 2024 | IA | STRAIGHT TRUCK | 1 | 1 |
| May 31, 2024 | IA | STRAIGHT TRUCK | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Nov 4, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Aug 19, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jan 24, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Dec 2, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Aug 13, 2024 | 39375A3 | Tire-flat and/or audible air leak | Vehicle Maintenance | Yes |
| Jul 1, 2024 | 39375A3 | Tire-flat and/or audible air leak | Vehicle Maintenance | Yes |
| May 31, 2024 | 39280A | Driving a commercial motor vehicle while Texting | Unsafe Driving | — |