Sioux City Engineering Co is an active interstate carrier based in Sioux City, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 6 | 3 | 0 |
| Tractors | 0 | 3 | 0 |
| Trailers | 0 | 7 | 0 |
| Total Power Units | 6 | ||
Distinct vehicles · 24 mo
vs 6 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 | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 89% | 94% | 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 | 3 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 1 state. Top state IA accounts for 100% of activity. Activity outside home state (IA): 0%.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 4 | 2 | 3 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 25, 2026 | IA | STRAIGHT TRUCK | 1 | 1 |
| Jun 21, 2025 | IA | TRUCK TRACTOR | 3 | 2 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 11.80 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Mar 25, 2026 |
| 393100BC |
| Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV |
| Vehicle Maintenance |
| Yes |
| Jun 21, 2025 | 393130 | No/improper heavy vehicle/machine securement | Vehicle Maintenance | Yes |
| Jun 21, 2025 | 393130B | Item not properly prepared for transport | Vehicle Maintenance | Yes |
| Jun 21, 2025 | 39355D2 | CMV manufactured on/after 3/1/2001 not equipped with ABS malfunction circuit / lamp from towed vehicle in cab | Vehicle Maintenance | — |