You were driving north on State Route 33 above Ojai, on a winding two-lane stretch, when a pickup came around a curve straddling the center line. There was nowhere to go. The impact crushed the front of both vehicles. Now the other driver's insurer says the road was narrow and both drivers were too close to the line.
Head-on crashes usually have a clear starting point, one car crossing into the other's lane, but the reason is often disputed. The answer shapes both fault and the size of the claim.
Quick answer: Under Vehicle Code section 21460(a), a driver may not drive to the left of double parallel solid yellow lines, with limited exceptions. Vehicle Code section 21650 generally requires driving on the right half of the roadway. A driver who crosses the center line and causes a head-on crash is usually at fault, and the violation can support a presumption of negligence under Evidence Code section 669. Defenses sometimes include sudden emergencies, mechanical failures, or claims that both drivers were over the line. Proving fault often depends on reconstruction of the point of impact, vehicle data, and evidence of distraction, fatigue, or impairment.
Key Takeaways
- Vehicle Code section 21460(a) prohibits driving to the left of double solid yellow lines, with limited exceptions.
- The driver who crossed into oncoming traffic is usually at fault.
- Point-of-impact evidence, such as debris and gouge marks, shows where the collision happened.
- Phone records, toxicology, and work schedules can explain why a driver crossed the line.
- Head-on crashes often cause catastrophic injuries, which makes coverage and future care central to the claim.
What Does California Law Say About Crossing the Center Line?
Vehicle Code section 21460(a) says that if double parallel solid yellow lines are in place, a person driving a vehicle shall not drive to the left of the lines, except as the section permits. Where one line is broken, a driver on the broken-line side may cross to pass when it is safe. Separate rules limit passing on curves and hills where the view is obstructed.
A driver who crosses the center line in violation of these rules and causes the kind of crash they are meant to prevent faces a presumption of negligence under Evidence Code section 669. The driver can try to rebut that presumption by showing they acted as a reasonable person would have under the circumstances.
Why Do Head-On Crashes Happen on Two-Lane Highways?
- Unsafe passing on curves or hills.
- Distraction, such as reading or typing on a phone, causing a drift.
- Fatigue, especially on long drives or early mornings.
- Impairment from alcohol or drugs.
- Speed on curves, causing a vehicle to swing wide.
- Wrong-way driving on divided highways, often involving impairment.
How Is Fault Proven in a Head-On Collision?
Point of impact
Reconstructionists look at gouge marks, debris fields, and fluid trails to identify where the vehicles met relative to the center line. That physical evidence is often more reliable than either driver's memory.
Vehicle data
Event data recorders in many vehicles capture speed, braking, and steering in the seconds before a crash. That data should be preserved quickly, before vehicles are salvaged.
Phone and impairment evidence
If a drift was caused by distraction, phone records can show activity at the time of the crash. These usually require a subpoena once a lawsuit is filed. Our post on how phone records are subpoenaed in distracted driving cases explains the process. Toxicology results and the criminal case file can show impairment.
What Defenses Come Up in Head-On Cases?
- Sudden emergency. The defense may claim the driver swerved to avoid an animal or object. California's civil jury instructions (CACI 452) allow that defense only when the driver did not cause the emergency and acted as a reasonable person would.
- Mechanical failure. A sudden, unforeseeable failure may shift responsibility to a manufacturer or repair shop, but a driver who ignored warning signs remains responsible.
- Shared fault. The defense may argue you were also over the line or speeding. California's pure comparative fault rule would reduce, not bar, your recovery. Our post on comparative negligence in California explains how that works.
Why Are Head-On Claims Often Larger?
Head-on crashes combine the speeds of both vehicles. Injuries can include traumatic brain injury, spinal fractures, internal injuries, and fatalities. When injuries are severe, available insurance often falls short. Claims may involve the at-fault driver's policy, an employer if the driver was working, your own underinsured motorist coverage, and sometimes a vehicle owner. Serious cases also require careful proof of future medical needs and lost earning capacity.
What Should Ventura County Residents Know?
On state highways in unincorporated Ventura County, including routes such as SR-33, SR-150, and SR-126, crashes are generally investigated by the CHP. Within cities, the local police department or the Ventura County Sheriff's Office, for cities that contract with it, typically responds. A lawsuit is ordinarily filed in the Superior Court of California, County of Ventura.
How Long Do Head-On Injury Claims Take?
Serious injury claims usually take longer than minor ones, because the full extent of the harm is not known until treatment progresses. Cases involving surgery, brain injury, or permanent impairment often need expert opinions on future care and earning capacity before they can be valued fairly. When the at-fault driver also faces criminal charges, the civil case may move alongside the prosecution, and evidence from the criminal file can become available along the way.
What Should I Do After a Head-On Collision?
- Call 911. Head-on crashes usually require emergency response.
- If you can, photograph vehicle positions, debris, and lane markings before vehicles are moved.
- Get witness names and contact information.
- Ask that the vehicles be preserved. A preservation letter can prevent destruction of the event data recorder.
- Get full medical evaluation, including for head injury, even if symptoms seem mild.
- Report the crash to DMV within 10 days under Vehicle Code section 16000.
Frequently Asked Questions
Who is at fault in a head-on collision?
Usually the driver who crossed into the other lane. Exceptions are rare and fact-specific.
What if the other driver died in the crash?
You may bring a claim against the driver's estate, and insurance typically still applies.
Can I sue if the other driver was drunk?
Yes. Impairment strengthens the negligence case and may support punitive damages under Civil Code section 3294.
What if I swerved to avoid the oncoming car and still got hit?
Evasive action is judged by what a reasonable driver would do in an emergency the other driver created. Reasonable evasive steps generally do not shift fault to you.
How long do I have to file?
Generally two years under Code of Civil Procedure section 335.1. Wrongful death claims are also generally subject to a two-year limit. Our post on California wrongful death and survival actions covers family claims after a fatal crash.
Hurt in a Head-On Crash? Geller Legal Can Help.
Head-on collisions often cause life-changing injuries. Physical evidence disappears quickly, and the right investigation starts in the first days.
Geller Legal | Personal Injury Attorneys works with reconstruction experts, preserves vehicle data, and pursues every available coverage source in serious crash cases. Learn more about our California catastrophic injury practice.
We serve injured clients throughout California, with offices in Los Angeles, Oakland, and Walnut Creek. If you or a loved one was hurt in a head-on crash, call us at 213-770-4870 for a free, confidential consultation with Attorney Michael Geller.