Diamond H Construction Company is an active interstate carrier based in Longview, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 55 | 0 | 0 |
| Tractors | 11 | 0 | 0 |
| Trailers | 7 | 0 | 0 |
| Total Power Units | 66 | ||
Distinct vehicles · 24 mo
vs 66 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 98% | 96% | Worse than most peers |
| Driver Fitness | 100% | 98% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 75% | 80% | 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 | 5 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 4 states. Top state LA accounts for 25% of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Driver Fitness | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | TX | STRAIGHT TRUCK | 3 | 2 |
| Apr 23, 2025 | LA | TRUCK TRACTOR | 6 | 4 |
| Jan 13, 2025 | MS | STRAIGHT TRUCK | 0 | 0 |
| Sep 10, 2024 | NC | STRAIGHT TRUCK | 0 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 1 | 2.00 | — |
| Vehicle Maintenance | 2 | 6.66 | — |
| Driver Fitness | 2 | 9.28 | — |
| Controlled Substances | 0 | 0.00 | — |
| 2 |
| 4 |
| Vehicle Maintenance | 4 | 1 | 1 |
| Hours-of-Service Compliance | 1 | 0 | 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | 38323A2 | Operating a CMV without a CDL | Driver Fitness | Yes |
| Feb 26, 2026 | 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 |
| Feb 26, 2026 | 39617C | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | — |
| Apr 23, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Apr 23, 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 |
| Apr 23, 2025 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| Apr 23, 2025 | 3939BLRLIWR | Lighting - Tail lamp - Both lamps on rearmost vehicle inoperative when required to be on | Vehicle Maintenance | Yes |
| Apr 23, 2025 | 3958A1HOSP | HOS (Property) - Failing to have a record of duty status using the method prescribed | Hours-of-Service Compliance | Yes |
| Apr 23, 2025 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |