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Fatigued Truck Drivers and Hours-of-Service Violations

Fatigued truck drivers cause thousands of preventable crashes on American highways every year, and Texas accounts for a disproportionate share because of its long freight corridors and 24-hour delivery economy. The Federal Motor Carrier Safety Administration estimates that driver fatigue is a contributing factor in roughly 13 percent of large truck crashes where critical reasoning could be assessed (FMCSA Large Truck Crash Causation Study). Behind nearly every fatigued-driver crash is a violation of the federal hours-of-service rules — and behind those violations is almost always a carrier that pressured the driver to keep moving.

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Hours-of-service rules govern how long a commercial driver can work, drive, and rest. The FMCSA limits property-carrying drivers to 11 hours of driving within a 14-hour on-duty window, followed by 10 consecutive hours off duty. A 60/70-hour rolling weekly cap applies. Electronic logging device (ELD) mandates require automatic tracking — yet violations remain among the top citations issued at Texas weigh stations (FMCSA Hours of Service Rules).

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Carabin Shaw handles fatigued truck driver cases throughout San Antonio and South Texas. Our attorneys use ELD data, dispatch records, and driver logs to prove hours-of-service violations and the carrier negligence that drives them.

How Driver Fatigue Causes Truck Crashes

Fatigue degrades reaction time, attention, and decision-making in measurable ways. The Centers for Disease Control reports that being awake for 18 consecutive hours produces cognitive impairment equivalent to a 0.05 blood alcohol concentration; 24 hours awake matches 0.10 BAC — over the legal limit (CDC NIOSH Fatigue Research). A driver this impaired cannot safely operate an 80,000-pound vehicle at highway speed.

Fatigue crash patterns we see repeatedly in San Antonio cases:

• Rear-end collisions on I-10 and I-35 in moderate traffic
• Lane departures into adjacent vehicles or median barriers
• Failure to stop for construction zone traffic
• Overcorrection and rollover after drift events
• Rest stop and shoulder reentry crashes
• Pre-dawn and post-midnight crashes when circadian dip is deepest

The Federal Hours-of-Service Rules That Matter Most

Three rules form the foundation of every hours-of-service claim:

11-hour driving limit. A property-carrying driver may not drive more than 11 hours after 10 consecutive hours off duty.

14-hour window. Driving must occur within 14 hours of coming on duty after a 10-hour break. The 14-hour clock does not pause for meals, fueling, or loading delays.

60/70-hour cap. A driver cannot exceed 60 hours of duty in 7 consecutive days, or 70 hours in 8 consecutive days, with a 34-hour restart resetting the count.

Sleeper berth provisions allow split rest periods, but the math still has to work. Falsified logs, ghost log entries, and ELD tampering remain frequent FMCSA enforcement targets.

How Carabin Shaw Proves Hours-of-Service Violations

ELD data is the foundation of any modern hours-of-service case. Federal rules require carriers to maintain ELD records for six months. The data tracks engine on/off events, GPS position, mileage, and duty status. Our firm subpoenas:

• ELD records for the driver in question
• Carrier dispatch logs and load assignments
• Driver pay records (mileage-based pay incentivizes violations)
• Toll transponder data placing the truck at specific times
• Fuel card transactions confirming locations and stops
• Cell phone records corroborating duty status
• Customer delivery records confirming arrival times

Cross-referencing these records against the driver’s claimed log entries exposes ghost rest periods, off-duty hours that occurred while the truck was moving, and pre-trip inspections that never happened.

Carrier Liability Beyond the Driver

Hours-of-service violations rarely come from a single rogue driver. Carriers create the conditions through dispatch pressure, delivery deadlines that are impossible to meet legally, mileage-based pay that rewards skipped rest, and willful blindness to log discrepancies. Federal Motor Carrier Safety Administration enforcement data shows that carriers with consistent HOS violations have crash rates substantially higher than the industry baseline (FMCSA Safety Measurement System).

Texas law lets injury victims pursue:

• The motor carrier — for negligent dispatch, training, and supervision
• The driver — for log falsification and operating while fatigued
• The dispatcher individually — when knowing pressure caused violations
• The freight broker — for unrealistic delivery commitments
• The shipper — when detention practices forced HOS violations

Fatigue Crashes in San Antonio

San Antonio sees a concentration of fatigue-related truck crashes because of its position on the Laredo-Dallas freight corridor. Drivers running northbound from the border often hit the city in the early morning hours after extended duty cycles. The Texas A&M Transportation Institute has tracked South Texas as one of the most fatigue-prone corridors in the United States (TTI Transportation Research).

Common fatigue crash locations:

• I-35 northbound between Schertz and downtown (early morning hours)
• Loop 1604 east where construction shifts produce sudden stops
• I-10 west toward Boerne (late evening descents and grade changes)
• US-281 north corridor through bedroom communities

Damages Recoverable in Fatigue Cases

Texas tort law allows full recovery for fatigue-related injuries: past and future medical expenses, lost wages and earning capacity, physical impairment, disfigurement, pain and mental anguish, and loss of consortium. Wrongful death and survival damages apply in fatal cases under Texas Civil Practice and Remedies Code Chapter 71.

When carrier conduct rises to gross negligence — willful HOS violation policies, falsified log culture, or repeated FMCSA enforcement actions ignored — exemplary damages under Chapter 41 are available. Fatigue cases frequently meet the gross negligence standard because the conduct is corporate, repeated, and entirely preventable.

Why Fatigue Cases Demand Immediate Action

ELD data overwrites after six months. Driver logs can be edited. Dispatch communications stored on company servers are sometimes “purged” as routine document retention. Our firm sends preservation demands within hours of being retained and moves to court for protective orders when carriers stall.

Call Carabin Shaw After a Fatigue-Related Truck Crash

If a fatigued truck driver injured you or a family member on a San Antonio highway, contact Carabin Shaw today for a free consultation. Our attorneys handle these cases on contingency and have decades of experience proving hours-of-service violations against the largest motor carriers in Texas.