ROCK CREEK LINE CONSTRUCTION INC
AUTHORIZEDUSDOT
644976
MC Number
N/A
Fleet Size
41
Total Drivers
49
Last updated: March 14, 2026
Safety overview
ROCK CREEK LINE CONSTRUCTION INC is a mid-size interstate motor carrier based in GREENSBORO, Maryland, operating 41 power units with 49 drivers. Their safety profile raises flags: 4 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. No crashes on file. FMCSA records show 12 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Maryland is 13.2% and the average vehicle OOS rate is 25.4% across 42,394 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
12
Total
52%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is ROCK CREEK LINE CONSTRUCTION INC authorized to operate?
Yes. ROCK CREEK LINE CONSTRUCTION INC (USDOT #644976) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is ROCK CREEK LINE CONSTRUCTION INC's safety record?
ROCK CREEK LINE CONSTRUCTION INC has 4 BASIC scores above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.
How many trucks does ROCK CREEK LINE CONSTRUCTION INC operate?
ROCK CREEK LINE CONSTRUCTION INC operates 41 power units with 49 drivers on file. That puts them in the mid-size range.
Does ROCK CREEK LINE CONSTRUCTION INC transport hazardous materials?
No. ROCK CREEK LINE CONSTRUCTION INC does not have a hazardous materials flag in the FMCSA database.
Where is ROCK CREEK LINE CONSTRUCTION INC located?
ROCK CREEK LINE CONSTRUCTION INC is based in GREENSBORO, Maryland at 12530 KNIFE BOX RD, 21639. Phone: (410) 482-7345.
What are ROCK CREEK LINE CONSTRUCTION INC's out-of-service rates?
ROCK CREEK LINE CONSTRUCTION INC's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 18.2% (national average: 20.72%).