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City of San Marcos Truck Accident Attorneys: Attorney911 Proves $50 Million Recovered with 25+ Years of Courtroom Power — TBI ($5M+), Amputation ($3.8M+), and Wrongful Death Results Against 80,000-Pound Walmart 18-Wheelers, Amazon Box Trucks, and FedEx Vans — Former Insurance Defense Attorney Neutralizes Great West Casualty and Old Republic Tactics — FMCSA Masters Extracting Samsara and Motive ELD Data Before the 30-Day Black Box Overwrite — High-Stakes Jackknife, Rollover, and Underride Litigation Involving Dump Trucks, Rental Trucks, and University Transit Buses — $750,000 Federal Insurance Minimum Exposed — Pedestrians, Cyclists, and Motorcyclists Struck by Trucks — Free 24/7 Consultation — No Fee Unless We Win — 1-888-ATTY-911 — Hablamos Español

February 18, 2026 20 min read
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San Marcos Truck Accident and Commercial Vehicle Injury Guide

The impact was catastrophic. You were driving on I-35, perhaps heading toward the San Marcos Premium Outlets or returning from a day at the river, when 80,000 pounds of steel slammed into your vehicle. In an instant, your car was crushed, your life was altered, and the future you planned feels like it’s slipping away. If you or a loved one has been seriously injured in a truck accident in San Marcos, you aren’t just dealing with an insurance claim—you’re in a legal emergency.

At Attorney911, we understand the terror and confusion that follow a commercial vehicle wreck. For over 25 years, our managing partner, Ralph Manginello, has fought for victims across Hays County and the state of Texas. Since 1998, he has gone head-to-head with some of the most powerful corporations on the planet, securing multi-million dollar settlements for families devastated by negligence. We know that right now, the trucking company is already working to protect their profits. We’re here to protect you.

The clock started the moment that truck hit you. Within 48 hours, critical evidence can be overwritten—and the trucking company knows it. Call us now before it’s gone: 1-888-ATTY-911.

Why San Marcos Truck Accidents Are Different

Trucking accidents in San Marcos aren’t like typical car crashes in Hays County. When a semi-truck or an Amazon delivery van is involved, the legal landscape shifts. You’re no longer dealing with a single driver’s insurance policy; you’re facing corporate legal teams, complex federal regulations, and sophisticated evidence-hiding tactics.

Our team brings a unique advantage to your fight. Our associate attorney, Lupe Peña, used to work for a national insurance defense firm. He knows their playbook because he helped write it. He’s seen how they train adjusters to minimize your pain and how they use algorithms to lowball your settlement. Now, he uses that “insider” knowledge to expose those tactics and fight for every dime you deserve. We’ve recovered over $50 million for Texas families because we aren’t intimidated by deep-pocketed defendants.

Whether you were hit by an 18-wheeler on the “NAFTA Highway” (I-35) or a construction dump truck on Highway 21, the rules of the game are different. You need a team that knows the San Marcos courts, the local trucking corridors, and the Federal Motor Carrier Safety Administration (FMCSA) regulations that govern every commercial vehicle on our roads.

If you’ve been hurt in a trucking accident anywhere in San Marcos, call Attorney911 now at 1-888-ATTY-911. Our San Marcos trucking accident attorneys offer free consultations and work on contingency—you pay nothing unless we win your case.

The NAFTA Corridor: Trucking Hazards on I-35 in San Marcos

San Marcos sits in the heart of the busiest trucking corridor in the United States. I-35 is the primary artery for freight moving from the Mexican border through San Antonio and Austin. Every day, over 100,000 vehicles move through our section of Hays County, a massive percentage of which are fully loaded 18-wheelers carrying general freight, hazardous materials, and automotive parts.

The congestion in San Marcos is a breeding ground for catastrophic collisions. Between the constant construction near Wonder World Drive and the bottlenecking traffic around the San Marcos River, truck drivers often become frustrated, leading to aggressive maneuvers or illegal lane changes. More dangerously, drivers coming from Laredo or the Valley are often reaching their maximum hours of service right as they hit San Marcos.

Our firm’s founder has spent his career holding trucking companies accountable for the fatigue that kills. We’ve handled cases where drivers falsified their logs to stay on the road longer than the legal 11-hour limit mandated by 49 CFR Part 395. When an exhausted driver operates an 80,000-pound missile through our community, we make sure the company pays for that choice.

Immediate Action: The 48-Hour Evidence Window in San Marcos

In a San Marcos truck accident, evidence disappears faster than you think. Trucking companies and corporate giants like Walmart or Amazon have rapid-response teams that are often at the crash scene before the ambulance even leaves for the Central Texas Medical Center. Their goal isn’t to help you—it’s to find ways to blame you.

Why Speed Is Critical

Black box data can be overwritten in 30 days or less. Dashcam footage is often deleted on a 7-day loop. If you wait months to hire an attorney, the proof you need to win your case could be erased forever.

At Attorney911, we send formal spoliation letters within 24 to 48 hours of being hired. These legal notices demand that the trucking company, their insurer, and all corporate parents preserve:

  • ECM/Black Box Data: This reveals the truck’s speed, RPM, and exactly when—or if—the driver hit the brakes.
  • ELD Logs: This proves if the driver was operating illegally while fatigued.
  • In-Cab Video: Systems like Netradyne or Lytx/DriveCam can catch the driver texting or falling asleep.
  • Maintenance Records: We look for deferred repairs on brakes and tires that prove the truck was a “rolling time bomb.”

Don’t wait. The trucking company is already building their defense. What are you doing? Call 1-888-ATTY-911 now.

Commercial Truck Accidents in San Marcos: What Hit You?

At Attorney911, we handle cases involving every type of commercial vehicle on San Marcos roads. The identity of the vehicle that hit you determines the insurance policies available and the legal strategies we must deploy.

18-Wheeler and Semi-Truck Accidents

These remain the most common and most lethal wrecks on I-35. We’ve litigated against major carriers like Swift, Werner, and Knight-Swift. With $1 billion verdicts becoming more common in the industry, these carriers fight aggressively. We look for terminal violations, improper weight distribution, and unsafe “No-Zone” maneuvers that crush smaller passenger cars.

Corporate Delivery Fleet Accidents (Amazon, Walmart, UPS)

San Marcos is home to the massive Amazon Fulfillment Center (SAT2) on McCarty Lane. We see Amazon delivery vans everywhere—on residential streets near Texas State University and in busy shopping centers. Amazon often uses a “Delivery Service Partner” (DSP) model to try and shield themselves from liability, claiming the driver isn’t their employee. We know how to pierce that shield. If Amazon controls the route, sets the quota, and monitors the driver, Amazon is responsible.

Similarly, we’ve gone toe-to-toe with corporate giants like Walmart. Their trucks are 24/7 realities on our Hays County highways. Because Walmart self-insures, they are extra aggressive in protecting their bottom line. We have the federal court experience to take on their armies of lawyers and win.

Construction and Dump Truck Accidents

With the explosive growth in San Marcos, dump trucks and concrete mixers are constant hazards on Highway 123 and RR 12. These vehicles are often overloaded, leading to brake failure or tire blowouts. A loaded dump truck can weigh 60,000 pounds, and when it rolls over on a San Marcos curve, the crushing force is almost never survivable for someone in a car.

Vulnerable Road User Accidents: Pedestrians and Cyclists

San Marcos is a walking city, especially with students at Texas State University. When a commercial truck makes a wide right turn and catches a cyclist in a “right hook” or strikes a student in a crosswalk on University Drive, the injuries are devastating. These victims have zero protection. We hold companies accountable for failing to install blind-spot sensors and cameras that could have saved a life.

Hablamos Español. Llame a Lupe Peña al 1-888-ATTY-911 para una consulta gratis.

Proving Negligence: Violations of FMCSA Regulations

The Federal Motor Carrier Safety Administration (FMCSA) sets the rules that every commercial driver must follow. When these rules are broken, it is “negligence per se,” meaning the violation itself can prove the driver or company was at fault. We use Title 49 of the Code of Federal Regulations to build your case.

Hours of Service (49 CFR Part 395)

This is the most frequent violation we find. Drivers are limited to 11 hours of driving time and must take mandatory rest breaks. Because San Marcos is a major transit point between Laredo and Dallas, many drivers are at the end of their cognitive limits right as they pass through our city. We pull the ELD data to see if they were “running ragged” to meet a delivery window.

Driver Qualifications (49 CFR Part 391)

Trucking companies have a duty to hire safe drivers. Did the company check his driving record? Did he have a history of DUIs or reckless driving in Texas? If a company puts an unqualified driver on San Marcos roads, they are liable for negligent hiring.

Maintenance and Inspection (49 CFR Part 396)

Brake problems are a factor in nearly 30% of all large truck crashes. Every truck must undergo a “pre-trip” inspection. If a driver ignored a worn tire or a leaking brake line to get a load to an Amazon or Walmart facility on time, that is a direct violation of federal law.

Learn more in our video guide: “The Definitive Guide To Commercial Truck Accidents” at https://www.youtube.com/watch?v=iEEeZf-k8Ao.

Who Is Really Responsible? Finding All 16 Liable Parties

Most law firms only sue the truck driver. At Attorney911, we go deeper. In a single San Marcos truck accident, there can be up to 16 different parties who owe you compensation. By identifying more defendants, we access more insurance coverage, ensuring you aren’t left with millions in unpaid medical bills.

Our investigation looks at:

  1. The Truck Driver: For direct negligence like speeding or distraction.
  2. The Trucking Company: For vicarious liability and negligent training.
  3. The Corporate Parent (Walmart/Amazon/Sysco): For setting unsafe delivery quotas.
  4. The Cargo Loading Company: If an improperly secured load caused a jackknife or rollover.
  5. The Freight Broker: For hiring a carrier they knew had a dangerous safety rating.
  6. The Maintenance Provider: If a third-party mechanic botched a brake repair.
  7. Manufacturers: If a tire blowout was caused by a manufacturing defect.

In the case of a FedEx Ground or Amazon DSP accident, the “contractor” defense is the whole ballgame. These companies will tell you the driver wasn’t their employee. We’ve heard it before. We use the “Right-to-Control” test to show a jury that if the company controls the driver’s every move, they must also take responsibility for the driver’s every mistake.

Catastrophic Injuries: Acknowledging Your Pain

An 80,000-pound truck doesn’t just “dent” your car; it changes your biology. We work with the top medical experts in Central Texas to document the full scope of your injuries. Whether you are being treated at a Level I trauma center in Austin or right here in San Marcos, your medical records are the foundation of your recovery.

Traumatic Brain Injury (TBI)

The “coup-contrecoup” force of a truck impact can cause axonal shearing and permanent cognitive deficits. You might feel “fine” initially, then realize you can’t concentrate at work or remember conversations. TBI settlements we’ve seen range from $1.5 million to over $9.8 million because they require lifetime support.

Spinal Cord Injury and Paralysis

A C4 cervical spine injury can result in total quadriplegia, requiring 24/7 nursing care and home modifications. In San Marcos, the lifetime cost of such an injury can easily exceed $10 million. We calculate every cent of that cost to ensure your family is secure.

Amputation and Crush Injuries

Whether it’s a traumatic amputation at the scene or a surgical one due to “crush syndrome,” the loss of a limb is a psychological and physical trauma. We’ve recovered over $3.8 million for clients facing medical complications after car and truck crashes.

Wrongful Death

If you lost a loved one on I-35 or any San Marcos road, we are deeply sorry. No check can bring them back, but holding the trucking company accountable can provide the financial stability your children need and ensure this doesn’t happen to another family. Wrongful death settlements in trucking cases often reach into the multi-millions.

This shouldn’t have happened to you. Let us fight for what you deserve. Call Attorney911 at 1-888-ATTY-911.

Compensation: What Your San Marcos Case Is Worth

In Texas, your case has two main types of damages: Economic and Non-Economic.

Economic Damages are the bills we can count: your surgery at Central Texas Medical Center, your physical therapy, your lost wages from your job in the San Marcos technology sector, and your future loss of earning capacity.

Non-Economic Damages are the ones insurance companies hate: your physical pain, your mental anguish, and your “loss of enjoyment of life.” If you can no longer hike the trails at Purgatory Creek or tube down the San Marcos River because of a truck driver’s negligence, that is a real, compensable loss.

Insurance Stacking

Federal law requires $750,000 to $5 million in insurance for commercial trucks. But in San Marcos, corporate fleet vehicles often have excess and umbrella policies that go much higher. We identify these layers—primary policies, contingent liability, and corporate assets—to find the maximum compensation available.

Texas Laws that Affect Your San Marcos Claim

As your San Marcos 18-wheeler accident attorneys, we must navigate specific Texas statutes to win your case.

The 2-Year Clock (Statute of Limitations)

In Texas, you generally have two years from the date of the accident to file a lawsuit. If you miss this deadline, your right to recover is gone forever. However, specifically in trucking cases, you should not wait. Every week you wait is another week the trucking company is scrubbing their database of your crash info.

Modified Comparative Negligence (The 51% Rule)

Texas law (Chapter 33 of the Civil Practice and Remedies Code) says that if you are more than 50% responsible for the accident, you recover nothing. If you are 20% responsible, your award is reduced by 20%. The trucking company will try to say you were speeding or distracted to shift the blame. Our insurance defense background (thanks to Lupe Peña) allows us to anticipate these “blame the victim” tactics and shut them down before a jury hears them.

Handling the Insurance Battle: Our Inner Advantage

Insurance adjusters are professional negotiators. Their annual bonuses rely on how much money they don’t pay you. When a sophisticated fleet insurer calls you, they might seem friendly, but they are looking for “gotcha” moments.

Learn more in our video: “What Should You Not Say to an Insurance Adjuster?” at https://www.youtube.com/watch?v=9UKRbFprB0E.

Because our team includes a former insurance defense lawyer, we know when they’re bluffing. We know the software they use (like Colossus) to devalue your suffering. We don’t accept their first lowball offer. We prepare every case as if it’s going to trial in front of a Hays County jury. That reputation is why companies often settle for far more when they see the Manginello Law Firm name on the paperwork.

As client Donald Wilcox said, “One company said they would not accept my case. Then I got a call from Manginello… I got a call to come pick up this handsome check.”

San Marcos Truck Accident FAQ

How long do I have to file an 18-wheeler accident lawsuit in San Marcos?
In San Marcos and throughout Texas, you have two years to file a claim. However, waiting even two weeks can be fatal to your evidence. We recommend calling us immediately so we can serve a legal hold on the truck’s electronic records.

The driver was an “independent contractor” for Amazon. Can I still sue Amazon?
YES. Amazon’s “Delivery Service Partner” model is frequently challenged in court. If Amazon dictated the driver’s route and schedule in San Marcos, we can argue they are the “de facto” employer. We’ve litigated this exact issue and know how to find the path to Amazon’s assets.

What if my accident involved an oilfield truck near San Marcos?
While San Marcos isn’t the center of the Permian, it is a major transit route for Eagle Ford shale traffic moving north. If you were hit by a pipe hauler or a water truck, there are dual regulations (FMCSA and OSHA) that apply. These cases are often worth millions because oilfield companies carry high-limit HAZMAT policies.

How much does it cost to hire Attorney911?
Zero dollars up-front. We work on a contingency fee basis. We advance all the costs of investigators, accident reconstruction experts, and medical analysts. If we don’t win your case, you don’t owe us a dime for our time. Our goal is to take the financial burden off your family so you can focus on healing.

Will I have to go to court?
Most cases—98% or more—settle before they reach a jury. However, the best way to get a high settlement is to PROVE you are ready for trial. Ralph Manginello is admitted to federal court and has 25+ years of experience. When insurance companies know we are willing to pick a jury, they suddenly find more money in their budget for a fair settlement.

What is my case worth?
No ethical lawyer can give you a specific number today. However, trucking settlements are significantly higher than car accidents. We’ve seen traumatic brain injury cases recover in the $1.5M to $9.8M range and wrongful death cases reach over $9.5M. Your value depends on the evidence we preserve in the next 48 hours.

San Marcos Commercial Vehicle Spotlight: More Than Just Semis

Trucking accidents in San Marcos involve a wide variety of heavy vehicles. We treat each with specialized focus.

Dump Trucks and Gravel Haulers

San Marcos’s growth means constant heavy hauling on Highway 21 and the I-35 access roads. Dump trucks are notorious for “losing their load”—spilling rocks and debris that cause chain-reaction wrecks. If a construction vehicle caused your crash, we look at the hiring contractor’s general liability policy.

Rental Moving Trucks (U-Haul, Penske)

San Marcos is a college town. Every semester, thousands of students lease 26-foot trucks from U-Haul or Penske. Many of these drivers have never operated a vehicle larger than a car. When an untrained driver in a rented truck causes a rollover or fails to stop in time on RM 12, the rental company can be liable for negligent entrustment.

Garbage Trucks and San Marcos City Vehicles

Residential streets in neighborhoods like Blanco Vista or Willow Creek see weekly traffic from massive garbage trucks. These vehicles have massive blind spots and often back up in area where children are walking to school. If a city-owned or municipal truck hit you, you have a very short window (often 6 months) to file a formal “Notice of Claim” due to sovereign immunity rules. We handle these government tort claims with precision.

The Manginello Advantage: We Treat You Like Family

When you call our firm, you aren’t a case number. We know that behind every file is a mother terrified about her bills, a father who can’t hold his children, or a student whose future has been derailed.

As client Chad Harris put it, “You are NOT a pest to them and you are NOT just some client… You are FAMILY to them.”

We aren’t a massive “mill” where you only talk to paralegals. Ralph Manginello is personally involved in the strategy of your case. We combine the high-stakes resources of a big firm with the personal attention of a small one. We even give our clients direct lines of communication because we know a legal emergency doesn’t always happen between 9 and 5.

Free consultation. No fee unless we win. 24/7 availability. One number to remember: 1-888-ATTY-911.

Navigating the Legal Aftermath in San Marcos

If you’re reading this from a hospital bed at AdventHealth San Marcos or your home in Hays County, your mind is racing.

  • “How will I pay for my surgery?”
  • “What if I can’t return to my job?”
  • “Why is the trucking company calling me?”

The answer to the first two is: by holding the negligent parties accountable. The answer to the third is: because they want to pay you pennies on the dollar for your future.

Let us handle the lawyers, the adjusters, and the experts. You handle getting better. We advance all costs, from hiring an accident reconstructionist to investigate the physics on I-35 to a life-care planner to calculate your future medical needs.

You were hit by a corporate giant. It’s time for you to have a giant on your side.

Why Hiring a “Local” Insider Matters

Some firms handle cases nationwide and have never set foot in a San Marcos courtroom. We know this territory. We know how Hays County juries think. We know the specific dangers of the I-35 and Highway 80 interchange. We know that a truck accident during a busy Texas State football weekend creates different evidence than a Tuesday morning crash.

That local knowledge, paired with our federal bar admission and 25 years of trial experience, gives you the best chance at a nuclear verdict or a substantial settlement.

Ready to fight back? We’re ready to help. 1-888-ATTY-911.

Final Word: Don’t Let Them Win Twice

The accident was the first blow. Don’t let the trucking company strike a second time by denying you the compensation you need to survive. They have already started their clocks. They are scrubbing logs and protecting their data.

Reach out to Attorney911 today. Whether you were hit by a Walmart 18-wheeler, an Amazon van, a cement mixer, or a Sysco refrigerated truck, we have the experience, the former defense insiders, and the tenacity to win.

We answer. We fight. We win.

Attorney911 | The Manginello Law Firm
Serving San Marcos, Hays County, and the State of Texas
1-888-ATTY-911 (1-888-288-9911)
ralph@atty911.com
https://attorney911.com

Hablamos Español. Consulta Gratis 24/7.

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