DBA: 94372854
Argonaut Constructors is an active intrastate hazmat carrier based in Santa Rosa, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 29 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 4 | 0 | 0 |
| Total Power Units | 31 | ||
Distinct vehicles · 24 mo
vs 31 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 69% | 93% | Around peer average |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 97% | 98% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 58% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 2 | — | 22.26% |
| Hazmat | 2 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jul 1, 2024 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 9 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 4, 2026 | CA | STRAIGHT TRUCK | 1 | 0 |
| Nov 3, 2025 | CA | STRAIGHT TRUCK | 1 | 0 |
| Oct 6, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Sep 15, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Sep 12, 2025 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 0.48 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 5 | 2.14 | — |
| Driver Fitness | 2 | 1.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 1 state. Top state CA accounts for 100% of activity. Activity outside home state (CA): 0%.
| 3 |
| 2 |
| Driver Fitness | 2 | 1 | 1 |
| Unsafe Driving | 1 | 0 | 0 |
| CA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Jul 10, 2025 | CA | STRAIGHT TRUCK | 4 | 3 |
| Jul 10, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
| Jul 3, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jun 17, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jan 22, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 4, 2026 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Nov 3, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | — |
| Jul 10, 2025 | 39141APC | Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Driver Fitness | Yes |
| Jul 10, 2025 | 39343DBMA | Brake - Breakaway not attached to the towing vehicle | Vehicle Maintenance | Yes |
| Jul 10, 2025 | 3939ALTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | Vehicle Maintenance | Yes |
| Jul 10, 2025 | 3963A1BALAC | Brake - Audible air leak from a brake chamber | Vehicle Maintenance | — |
| Jan 10, 2025 | 39375A1TFBMF | Tires - Front belt material/casing ply showing in tread area | Vehicle Maintenance | — |
| Dec 31, 2024 | 393104F4C | Cargo - No edge protection for tiedowns | Vehicle Maintenance | — |
| Aug 6, 2024 | 39311 | No or defective lighting devices or reflective material as required | Vehicle Maintenance | — |
| Aug 6, 2024 | 39395A | No/discharged/unsecured fire extinguisher | Vehicle Maintenance | — |