This page was written, edited, and reviewed & approved by Rusty Smith following our comprehensive editorial guidelines. Rusty Smith, the Founding Attorney, has 25 years of legal experience as a personal injury attorney. Our last Published date shows when this page was last updated & reviewed.
In most T-bone crashes, the driver who should have stopped or waited but didn't is at fault. Still, figuring out who's at fault in a T-bone accident rarely feels that simple when the other driver insists the light was green. Add the pain, the calls from adjusters, and a car that may be totaled, and feeling overwhelmed makes sense.
At Smith Barkett Law Group, we help injured Oklahomans and their families understand how state traffic laws shape fault after a side-impact crash. Knowing which rules apply and what evidence proves them can ease some of the worry. If questions about fault are keeping you up at night, you can talk with our team during a free case evaluation.
A T-bone crash happens when the front of one vehicle strikes the side of another, forming a T. These side-impact, or broadside, collisions often happen at intersections, where only a door protects the people inside. Nationwide, side impacts accounted for 22% of passenger vehicle occupant deaths in 2024, according to the Insurance Institute for Highway Safety.
Fault depends on negligence, and how negligence works turns on whether a driver used reasonable care. At an intersection, that usually means asking who had the right-of-way, the legal right to go first.
Oklahoma also applies negligence per se, which treats breaking a statute as negligence if the other elements of a claim are present. In Busby v. Quail Creek Golf and Country Club, the state Supreme Court required proof that the violation caused the injury and that the statute was aimed at preventing that kind of injury. The injured person must also belong to the group the statute protects.
For example, a driver who runs a red light and hits a car crossing on green breaks a law meant to prevent that exact crash. Adjusters and juries then weigh all the evidence to set each driver's share of fault.
The traffic code in Title 47 of the Oklahoma Statutes (O.S.) spells out who must yield at lights, signs, and crossroads. Those duties usually anchor the fault analysis.
Under 47 O.S. Section 11-202, a driver facing a steady red light must stop and remain stopped until a signal allows movement, except for permitted turns on red. Drivers turning on green must still yield to vehicles and pedestrians lawfully within the intersection. A steady yellow warns that the green is ending or that a red signal will follow immediately.
Picture a driver who speeds up to beat a yellow, enters on red, and strikes a car crossing on green. That driver usually carries most of the blame.
Left turns force drivers to judge oncoming traffic, and a misjudged gap often ends in a T-bone crash. Under 47 O.S. Section 11-402, a driver turning left must yield to any vehicle approaching from the opposite direction that is close enough, when the turn begins, to create an immediate hazard.
Even so, an oncoming driver who was speeding or looking at a phone may share the fault.
Under 47 O.S. Section 11-403, a driver at a stop sign must stop, then yield to vehicles in the intersection or close enough to be an immediate hazard. At a four-way stop, the vehicle on the right goes first when drivers arrive at the same time, and a vehicle already in the intersection has priority. Passing a yield sign without stopping and then hitting a vehicle in the intersection counts as prima facie evidence, or presumed proof, of a failure to yield.
For example, if the other driver rolled past a yield sign and struck your door, that presumption helps your claim from the start.
At crossroads with no signs or signals, 47 O.S. Section 11-401 requires the driver on the left to yield to the driver on the right when both arrive at about the same time. The same statute requires drivers to yield and wait until it is safe, whether or not a stop or yield sign is present or visible, in the following situations:
These duties apply even when a sign is missing, knocked down, or hidden by brush.
Under 47 O.S. Section 11-404, a driver entering or crossing a road from a driveway or private road must yield to all vehicles approaching on that road.
If the other driver's insurer is already hinting that you caused the crash, call Smith Barkett Law Group at 918-582-6900. Our Oklahoma car accident lawyers can review the evidence with you during a free case evaluation.
Fault is not always all or nothing. The driver with the right-of-way can share blame, and so can parties who never sat behind the wheel.
A green light does not excuse careless driving. Under 47 O.S. Section 11-801, drivers must keep a careful speed and be able to stop within the clear distance they can see ahead. Another statute, 47 O.S. Section 11-901b, requires drivers to devote full time and attention to driving.
Under 23 O.S. Sections 13 and 14, an injured person's own negligence reduces their recovery in proportion to their share of fault. It bars recovery only if that negligence is greater than the negligence of the party, or combined parties, who caused the damage.
For example, if a jury values your losses at $120,000 and finds you 10% at fault for speeding, your recovery would drop to $108,000.
At Smith Barkett Law Group, we also look beyond the drivers for other responsible parties, including the following:
Naming every responsible party matters because, under 23 O.S. Section 15, each one generally pays only its assigned share of damages.
Two drivers can remember the same light very differently. Objective evidence often settles the question, and some of it can disappear within days.
Traffic cameras, business security cameras, and dashcams can show which light each driver faced. We request footage quickly, before it is overwritten, along with signal timing records for the intersection.
Witnesses who were waiting at the light can help too, so we reach them while their memories are fresh.
The crush damage on each car helps accident reconstruction experts estimate speed and angle. Many vehicles also carry an event data recorder, and federal recording standards require it to capture speed, accelerator, and brake data in the seconds before a crash.
Under the Driver Privacy Act of 2015, that data belongs to the vehicle's owner, or to the person leasing it. Others generally need the owner's consent, court authorization, or another narrow exception to access it, so we act before a damaged car is repaired or sold for salvage.
The days after a crash can feel like a blur, and that is normal. Our guide on what to do after a crash that was not your fault covers the basics, and a few T-bone concerns need extra attention:
We confirm your exact deadline early, and our overview of the personal injury statute of limitations explains the rule.
Families often ask us these questions after a side-impact crash.
Not always. We check whether the oncoming driver was speeding, distracted, or running a red light, since that driver may share the fault.
Independent proof usually settles it, such as intersection video, signal records, witnesses, and vehicle data. We request that evidence early.
Yes. Injured passengers can often pursue claims against either driver or both, and we look for every policy that may apply.
As soon as possible, because many cameras automatically overwrite older footage. We move quickly to ask owners to save it.
The report matters, but insurers and juries also weigh photos, video, witnesses, and vehicle data. We check the report against that evidence.
Talk with us first, since the damage and event data recorder can show speed and angle. Smith Barkett Law Group can arrange documentation before repairs.
When both drivers remember the light differently, the truth often sits in a traffic camera, a witness's memory, or your car's data recorder.
Our attorneys bring more than 75 years of combined litigation experience, and one of our founding partners has tried more than 80 jury trials to verdict. We use that courtroom perspective to evaluate how each driver's choices may look to a jury.
We gather the footage, vehicle data, and witness accounts, then explain how the right-of-way rules apply to your crash. You make the decisions, and we handle car accident claims on a contingency fee basis.
Families across Oklahoma can meet with us at our Tulsa office for a free case evaluation. Call 918-582-6900 or visit our contact page to talk with us about who's at fault in your T-bone accident.
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