Jr Site Construction Corp is an active intrastate hazmat carrier based in San Juan, PR.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 17 | 0 | 0 |
| Trailers | 6 | 0 | 0 |
| Total Power Units | 21 | ||
Distinct vehicles · 24 mo
vs 21 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% | 93% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 60% | 89% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 55% | 83% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 0 | — | 22.26% |
| Hazmat | 2 | 0 | 0.00% | 4.44% |
Where they run
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | PR | STRAIGHT TRUCK | 1 | 0 |
| Jan 14, 2026 | PR | STRAIGHT TRUCK | 1 | 0 |
| Aug 28, 2025 | PR | STRAIGHT TRUCK | 0 | 0 |
| Oct 30, 2024 | PR | TRUCK TRACTOR | 2 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 0.73 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 3.00 | — |
| Driver Fitness | 1 | 0.12 | — |
| Controlled Substances | 0 | 0.00 | — |
Inspected in 1 state. Top state PR accounts for 100% of activity. Activity outside home state (PR): 0%.
| 7 |
| 1 |
| 0 |
| Hazardous Materials Compliance | 5 | 0 | 0 |
| Unsafe Driving | 2 | 1 | 0 |
| Driver Fitness | 1 | 0 | 0 |
| Oct 24, 2024 |
| PR |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Oct 11, 2024 | PR | STRAIGHT TRUCK | 0 | 0 |
| Oct 2, 2024 | PR | STRAIGHT TRUCK | 11 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | 3922SLLIP | State/Local Laws - Improper passing | Unsafe Driving | — |
| Jan 14, 2026 | 172516C6HMPMC | HM (Placarding) - Failure to maintain placard(s) in a condition so that the format legibility color and visibility of the placard will not be substantially red | Hazardous Materials Compliance | — |
| Oct 30, 2024 | 39375A4PBME | Tires - Has a cut to the extent that the ply or belt material is exposed. | Vehicle Maintenance | — |
| Oct 30, 2024 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Oct 2, 2024 | 172516C6HMPMC | HM (Placarding) - Failure to maintain placard(s) in a condition so that the format legibility color and visibility of the placard will not be substantially red | Hazardous Materials Compliance | — |
| Oct 2, 2024 | 172602AHMER | HM (Emergency Response) - No emergency response information | Hazardous Materials Compliance | — |
| Oct 2, 2024 | 177817AHMPSPMC | HM (Shipping Papers) - Motor carrier permit/require a driver to operate a motor vehicle without a proper shipping paper | Hazardous Materials Compliance | — |
| Oct 2, 2024 | 177823AHMPMCM | HM (Placarding) - A carrier may not move a transport vehicle containing a hazardous material unless the vehicle is marked and placarded in accordance with part 17 | Hazardous Materials Compliance | — |
| Oct 2, 2024 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Oct 2, 2024 | 3922MCSR | Medical (Certificate) - Operating a CMV while in violation of state medical certification regulations | Driver Fitness | — |