DBA: Casa Mechanical Services
L B Christianson Co Inc is an active intrastate non-hazmat carrier based in Round Rock, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 4 | 0 | 0 |
| Total Power Units | 4 | ||
Distinct vehicles · 24 mo
vs 4 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 | 99% | 99% | 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 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 1 state. Top state TX accounts for 100% of activity. Activity outside home state (TX): 0%.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Apr 1, 2025 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 10 | 0 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 9, 2026 | TX | STRAIGHT TRUCK | 10 | 2 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 9, 2026 | 39345B2PC | Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit | Vehicle Maintenance |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 1
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 1 | 30.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| — |
| Jan 9, 2026 | 39345B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | Vehicle Maintenance | — |
| Jan 9, 2026 | 39345DLUV | Brake Connections with Leaks Under Vehicle | Vehicle Maintenance | — |
| Jan 9, 2026 | 39347A | Inadequate brakes for safe stopping - Brake Lining condition | Vehicle Maintenance | — |
| Jan 9, 2026 | 39348A | Inoperative/defective brakes | Vehicle Maintenance | — |
| Jan 9, 2026 | 39350C | No means to ensure operable check valve | Vehicle Maintenance | — |
| Jan 9, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Jan 9, 2026 | 3963A1BL | Brake system pressure loss | Vehicle Maintenance | Yes |
| Jan 9, 2026 | 3965B | Oil and/or grease leak | Vehicle Maintenance | — |
| Jan 9, 2026 | 3965BHLOW | Hubs - oil and/or Grease Leaking from hub - outer wheel | Vehicle Maintenance | Yes |