Diamond Concrete Supply Inc is an active intrastate non-hazmat carrier based in Lakeside, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 9 | 0 | 0 |
| Tractors | 2 | 0 | 0 |
| Trailers | 2 | 0 | 0 |
| Total Power Units | 11 | ||
Distinct vehicles · 24 mo
vs 11 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 | 85% | 94% | 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 | 81% | 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 | 3 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 11 | 0 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | CA | TRUCK TRACTOR | 2 | 1 |
| Oct 1, 2025 | CA | STRAIGHT TRUCK | 3 | 0 |
| Sep 29, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
| May 8, 2025 | CA | STRAIGHT TRUCK | 3 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 1.97 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 6 | 5.41 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
Where they run
Inspected in 1 state. Top state CA accounts for 100% of activity. Activity outside home state (CA): 0%.
| Unsafe Driving |
| 2 |
| 1 |
| 0 |
| Jan 14, 2025 |
| CA |
| STRAIGHT TRUCK |
| 1 |
| 2 |
| Jan 14, 2025 | CA | STRAIGHT TRUCK | 2 | 0 |
| Jul 10, 2024 | CA | TRUCK TRACTOR | 0 | 0 |
| Jun 4, 2024 | CA | STRAIGHT TRUCK | 2 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Feb 25, 2026 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Oct 1, 2025 | 39216AD | Driver - Failed to use seat belt while operating a CMV. | Unsafe Driving | — |
| Oct 1, 2025 | 39311A1LRR | Lighting - Reflex reflector(s) missing or improper | Vehicle Maintenance | — |
| Oct 1, 2025 | 3965HL | Hubs - Leaking hub | Vehicle Maintenance | — |
| May 8, 2025 | 3922SLLMF | State/Local Laws - Wheel (mud) flaps missing or defective | Vehicle Maintenance | — |
| May 8, 2025 | 39311A1LRR | Lighting - Reflex reflector(s) missing or improper | Vehicle Maintenance | — |
| May 8, 2025 | 3939ALLPL | Lighting - License plate lamp inoperative | Vehicle Maintenance | — |
| Jan 14, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Jan 14, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | — |