Black Hills Trenching & Boring Llc is an active interstate carrier based in Spearfish, SD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 9 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 8 | 0 | 0 |
| Total Power Units | 10 | ||
Distinct vehicles · 24 mo
vs 10 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 | 96% | 97% | Worse than most peers |
| Driver Fitness | 99% | 99% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 98% | 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 | 6 | — | 6.67% |
| Vehicle | 0 | 19 | — | 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 | 49 | 9 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Dec 16, 2025 | WY | STRAIGHT TRUCK | 14 | 11 |
| Apr 9, 2025 | WY | TRUCK TRACTOR | 10 | 7 |
| Mar 17, 2025 | MT | STRAIGHT TRUCK | 14 | 4 |
| Mar 4, 2025 | SD | STRAIGHT TRUCK |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 2 | 1.90 | — |
| Vehicle Maintenance | 7 | 23.70 | Alert |
| Driver Fitness | 7 | 8.45 | Alert |
| Controlled Substances | 0 | 0.00 | Alert |
Where they run
Inspected in 3 states. Top state MT accounts for 50% of activity. Activity outside home state (SD): 87%.
| 18 |
| Driver Fitness | 10 | 5 | 6 |
| Hours-of-Service Compliance | 2 | 0 | 2 |
| 1 |
| Dec 9, 2024 | MT | STRAIGHT TRUCK | 4 | 1 |
| Sep 25, 2024 | MT | STRAIGHT TRUCK | 3 | 1 |
| Aug 28, 2024 | MT | STRAIGHT TRUCK | 5 | 0 |
| May 11, 2024 | WY | STRAIGHT TRUCK | 10 | 5 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Dec 16, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Dec 16, 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 |
| Dec 16, 2025 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |
| Dec 16, 2025 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |
| Dec 16, 2025 | 39343DBMA | Brake - Breakaway not attached to the towing vehicle | Vehicle Maintenance | Yes |
| Dec 16, 2025 | 39348ABIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Vehicle Maintenance | — |
| Dec 16, 2025 | 39375CTAOTDLT232 | Tires - Less than 2/32 inch tread depth | Vehicle Maintenance | — |
| Dec 16, 2025 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Dec 16, 2025 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| Dec 16, 2025 | 39395F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | — |