Sierra Wes Wall Systems Inc is an active interstate carrier based in Loomis, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 28 | 28 | 0 |
| Total Power Units | 28 | ||
Distinct vehicles · 24 mo
vs 28 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 82% | 94% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 90% | 97% | Worse than most peers |
| Controlled Substances | 99% | 100% | Worse than most peers |
| Vehicle Maintenance | 76% | 88% | 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 | 2 | — | 6.67% |
| Vehicle | 0 | 8 | — | 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 |
|---|---|---|---|
| Vehicle Maintenance | 16 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 25, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Mar 4, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Feb 5, 2026 | CA | STRAIGHT TRUCK | 4 | 0 |
| Jan 21, 2026 | CA | STRAIGHT TRUCK | 2 | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 1.24 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 8 | 3.48 | — |
| Driver Fitness | 1 | 0.35 | — |
| Controlled Substances | 1 | 0.19 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state CA accounts for 93% of activity. Activity outside home state (CA): 7%.
| 4 |
| Unsafe Driving | 3 | 1 | 0 |
| Controlled Substances/​Alcohol | 1 | 1 | 1 |
| Driver Fitness | 1 | 0 | 1 |
| Dec 15, 2025 |
| CA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Oct 23, 2025 | CA | STRAIGHT TRUCK | 2 | 1 |
| Sep 17, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 22, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 21, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jul 2, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 5, 2026 | 39395A4EENA | Emergency Equipment - Fire Extinguishers - not readily accessible | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
| Jan 21, 2026 | 39111B2Q | Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) as per FMCSA Enforcement Guidance Memo MC-SEE-2025-0001. Driver failed the I | Driver Fitness | Yes |
| Jan 21, 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 | — |
| Oct 23, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Oct 23, 2025 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| May 30, 2025 | 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 | — |
| May 24, 2025 | 39343DB | Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly | Vehicle Maintenance | Yes |