What to Do After a Truck Accident in St. Louis

A loaded tractor-trailer can weigh twenty times what your car weighs. When one hits you on I-70, I-44, or I-64, the crash is only the beginning. The trucking company's lawyers and investigators often start work within hours. Your evidence starts disappearing at the same time.

That is the hard truth about truck cases. The truck itself recorded what happened — its speed, its braking, its driver's hours behind the wheel. But those records overwrite on schedule, and federal rules let carriers purge many of them within months. What you do in the first hours and days decides what survives.

This guide gives you the steps in order. It covers the scene, the hospital, the evidence, the insurance calls, and the Missouri and federal rules that shape your claim. Share it with the family member helping you. They can execute most of it while you heal.

At the scene: get safe, then capture the truck's identity

Call 911. Tell the dispatcher a commercial truck is involved — that detail can change who responds and what gets documented. Missouri law requires you to stay at the scene, and the responding officer's crash report will anchor every later account of the wreck. Ask for the report number before anyone leaves. You can pull the report later through the Missouri State Highway Patrol's crash report search.

If you are able — or if a family member can do it for you — photograph more than the damage. A truck case turns on the truck's identity:

The USDOT and MC numbers on the cab door. These identify the carrier and its federal operating authority.
The trailer number and every company logo. The tractor, trailer, and cargo often belong to different companies. Each may owe you separately.
The license plates of both tractor and trailer. They may be registered in different states.
The cargo. Photograph spilled loads, shifted freight, and any tie-downs or tarps.
Visible defects. Bald tires, broken lights, fluid leaks, damaged underride guards.
The driver's name and employer, if you can get them safely.

Then collect witness names and phone numbers before people drive away. A witness who saw the truck swerve or speed in the minutes before impact can carry a case.

See a doctor within 24 hours — and say it was a truck

Go to an emergency room or urgent care the same day, even if you feel functional. Adrenaline masks pain. Brain injuries, spinal damage, and internal bleeding often announce themselves hours or days after the crash. A same-day exam creates the medical record that ties your injuries to the collision.

Tell the doctor a commercial truck hit you, and describe every symptom — headaches, dizziness, neck pain, numbness, trouble sleeping, trouble concentrating. Small symptoms become big diagnoses in truck cases. If it is not in the record, the carrier's insurer will say it did not happen.

Then follow the treatment plan. Fill the prescriptions. Make the specialist appointments. Defense lawyers use gaps in treatment to argue you were not really hurt, and under Missouri's comparative-fault rules that argument can cut your recovery. Consistent care is not just medicine. It is evidence.

The truck's records can prove your case — while they last

Commercial trucks generate evidence no passenger car produces. Federal regulations force carriers to create and keep it. Much of it has a short life.

The black box. A truck's engine control module records speed, braking, throttle, and engine data around a crash. It answers the questions drivers lie about: How fast? Did he brake? When? But new driving events can overwrite the data. Once the truck goes back into service, the record may be gone.

The driver's logs. Federal rules require most commercial drivers to record their hours electronically. Under 49 C.F.R. § 395.8, the carrier must keep those records and supporting documents for at least six months — and no longer is required. Fatigue is a leading factor in truck crashes, and the log is often the only proof the driver had been on the road too long. Our guide to hours-of-service violations and truck driver fatigue explains what those records show.

The driver's file. Under 49 C.F.R. § 391.51, the carrier must keep a qualification file for every driver: the employment application, driving records, road-test certificate, and medical certification. That file can show the carrier hired a driver with a dangerous history or let one drive with a disqualifying condition.

The maintenance records. Under 49 C.F.R. § 396.3, the carrier must keep inspection and repair records for each vehicle — for one year, plus six months after the vehicle leaves its control. Worn brakes and bald tires live in those files.

The drug and alcohol tests. After a fatal crash, or a crash with a citation plus injury or tow-away damage, federal rules require post-accident testing. Under 49 C.F.R. § 382.303, the carrier must administer an alcohol test within eight hours and a drug test within 32 hours — or document why it could not. A missed deadline, or a missing record, tells its own story.

The cameras. Many trucks carry forward-facing and cab-facing dashcams. Businesses along the route, traffic cameras, and highway sensors may hold footage too. Most systems record over old video within days.

A preservation letter forces the carrier to keep the evidence

Here is the gap that decides truck cases. Federal retention periods are floors, not shields — a carrier may legally destroy ELD records the day after six months, and no federal rule sets a general retention period for black-box data at all. What stops the destruction is notice. Once a carrier knows litigation is coming, the law requires it to preserve evidence.

Your lawyer creates that notice with a spoliation letter — a formal demand, sent to the carrier, its insurer, and every other party in the chain, requiring them to preserve the truck, the black-box data, the logs, the driver file, the test results, the maintenance records, the camera footage, the dispatch communications, and the driver's phone records. Federal Rule of Civil Procedure 37(e) requires reasonable steps to preserve electronically stored information once litigation is reasonably anticipated, and courts back that duty with sanctions. The Eighth Circuit — whose rules govern Missouri's federal courts — upheld sanctions against a railroad that destroyed evidence after a fatal crossing accident, holding that a party that knows or should know evidence matters to imminent litigation must preserve it. Stevenson v. Union Pacific R. Co., 354 F.3d 739 (8th Cir. 2004).

Speed matters more than perfection here. A letter sent within days lands before the purge cycles run. A letter sent in month four may arrive after the logs were lawfully deleted. This is why the call to a lawyer cannot wait — only a lawyer can send this demand, and every day of delay is a day the evidence clock runs.

Treat the insurer's call as part of the carrier's defense

The trucking company's insurer will call you quickly — sometimes within hours, often while you are still in the hospital. The adjuster will sound warm and reasonable. Remember whose signature is on the adjuster's paycheck.

Decline the recorded statement. You owe the carrier's insurer nothing, and a recording made while you are medicated and shaken will be played back for a jury someday. Do not sign medical authorizations either; a blanket release lets the insurer dig through years of unrelated records hunting for a pre-existing condition to blame. And do not accept a quick settlement. Early offers arrive before anyone knows the full extent of your injuries, and a signed release ends your claim forever — even when a later diagnosis changes everything.

Large carriers go further than phone calls. Many deploy rapid-response teams: investigators and defense lawyers who reach the scene within hours, inspect the truck, photograph the road from the driver's perspective, and interview witnesses while you are in surgery. You cannot match that from a hospital bed. Your lawyer can.

Missouri law shapes your claim

Three rules frame every St. Louis truck case.

The filing deadline. Missouri gives you five years to file a personal injury lawsuit. RSMo § 516.120. If the crash killed a family member, a wrongful-death claim carries a shorter three-year period under RSMo § 537.100. Five years sounds generous. It is a trap. The deadline governs the lawsuit, but the evidence obeys its own clocks — six-month log purges, overwritten black boxes, recycled camera footage. Wait a year and you may file on time with nothing left to prove your case.

Shared fault. Missouri follows pure comparative fault. A jury assigns each party a percentage of blame, and your recovery shrinks by your share — but even a victim mostly at fault can still recover the rest. The Supreme Court of Missouri adopted that rule in Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983). Expect the carrier to argue you contributed: you changed lanes, you braked suddenly, you were in the truck's blind spot. Expect arguments that your injuries came from an old condition, or grew worse because you skipped treatment. These defenses reduce recovery; they rarely erase it. Consistent medical care and preserved evidence are your answers to both.

Multiple defendants. A truck crash rarely has one responsible party. The driver, the carrier, the trailer owner, the freight broker who hired the carrier, the shipper who loaded the cargo, and the shop that serviced the brakes may all share fault — and each carries separate insurance. Our guide to who is liable after a semi-truck accident in Missouri walks through that chain. Identifying every party matters, because catastrophic injuries can exceed any single policy. One caution in the other direction: carriers sometimes call their drivers "independent contractors" to dodge responsibility, and defenses like a claimed sudden emergency can complicate fault. A thorough investigation sorts the real parties from the paper ones.

Mistakes that shrink a truck claim

Most damage to a truck case is self-inflicted, and most of it happens in the first two weeks. Avoid these:

Skipping or delaying medical care. Gaps read as "not really hurt."
Giving the carrier's insurer a recorded statement or signing its medical authorization.
Taking the first offer before your diagnosis is complete.
Posting about the crash on social media. Adjusters screenshot everything.
Repairing or scrapping your vehicle before it is inspected — your car is evidence too.
Waiting months to call a lawyer while the six-month evidence clocks run.

What to do right now

If the crash just happened, work this list in order:

Call 911 and get the report number.
Photograph the truck's DOT number, trailer, plates, and cargo.
Collect witness names and numbers.
Get examined within 24 hours and report every symptom.
Say nothing recorded to the carrier's insurer; sign nothing.
Call a truck accident lawyer so a preservation letter goes out within days.

You do not have to carry this yourself. If you were hurt in a truck crash in the St. Louis area, call the Ott Law Firm at (314) 710-2740 or reach us through our contact page. The consultation is free, and the evidence clock is already running.

Questions truck crash victims ask

How long do I have to file a truck accident lawsuit in Missouri?

Five years for a personal injury claim under RSMo § 516.120, and three years for a wrongful-death claim under RSMo § 537.100. Treat those as outer limits, not a working schedule. The records that prove your case — driver logs, black-box data, camera footage — can vanish legally within months. Act in days, not years.

What is a spoliation letter, and do I need one?

It is a formal written demand requiring the trucking company and its insurers to preserve every record about the crash — the truck itself, its electronic data, the driver's logs and file, test results, and camera footage. Once the carrier receives it, destroying that evidence can bring court sanctions. Your lawyer sends it; you cannot send an effective one yourself. If the crash involved a commercial truck, you need one fast.

The insurance adjuster says they just need a quick statement. Should I give one?

No — not to the trucking company's insurer. You have no duty to give the other side's adjuster a recorded statement, and everything you say will be used to shrink your claim. Your own insurer is different: your policy requires reasonable cooperation. If the distinction confuses you, that is normal. Route every call through your lawyer.

Can I still recover if the crash was partly my fault?

Usually yes. Missouri's pure comparative fault rule reduces your recovery by your percentage of fault but does not bar it. The carrier's lawyers will argue your share was large; preserved evidence and consistent medical records are how your lawyer argues it was small.

This guide is for informational purposes only and is not legal advice. Every crash is different, and reading this page does not create an attorney-client relationship. For advice about your situation, talk to a lawyer about the specific facts of your case.

What to Do After a Truck Accident in St. Louis: Preserving Critical Evidence | Ott Law