T-Bone Accident in Phoenix: What You Need to Know After a Side Impact Collision
T-bone accidents at Phoenix intersections are among the most dangerous collisions because the side of a vehicle offers the least protection. These crashes typically happen when a driver runs a red light or fails to yield. Maricopa County recorded 88,094 total crashes in 2024, with failure to yield involved in over 22,500 crashes statewide. Side-impact collisions accounted for 22% of passenger vehicle occupant fatalities nationally in 2023, according to the Insurance Institute for Highway Safety. Arizona follows pure comparative negligence (A.R.S. 12-2505), meaning you can recover damages even if you were partially at fault — your award is reduced by your percentage of responsibility. You have 2 years from the date of injury to file a civil lawsuit under A.R.S. 12-542. Here is what you need to do to protect yourself and your claim.
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Key Takeaways
- T-bone crashes are disproportionately deadly — side impacts accounted for 22% of passenger vehicle occupant fatalities nationally in 2023 (IIHS).
- Arizona right-of-way statutes (A.R.S. 28-771 through 28-774) establish clear rules for who must yield at intersections — violating these laws is strong evidence of fault.
- Red light violations (A.R.S. 28-645) are a leading cause of T-bone crashes. Scottsdale still operates red-light cameras that may capture evidence.
- Arizona follows pure comparative negligence (A.R.S. 12-2505) — you can recover damages even if you share some fault, reduced by your percentage.
- Common T-bone injuries include traumatic brain injuries, spinal damage, broken ribs, pelvic fractures, and internal organ damage.
- You have 2 years to file a personal injury lawsuit in Arizona (A.R.S. 12-542). For claims against government entities, you must file a notice of claim within 180 days (A.R.S. 12-821.01).
How T-bone accidents happen at Phoenix intersections
A T-bone collision — also called a side impact or broadside crash — occurs when the front of one vehicle strikes the side of another, forming a T shape. These crashes happen overwhelmingly at intersections. The most common cause is a driver running a red light or failing to yield the right of way when turning left. In Phoenix, high-speed arterial roads with multiple lanes create conditions where T-bone crashes are both frequent and severe.
Some of the most dangerous intersections in Phoenix include 99th Avenue and Lower Buckeye Road (411 crashes), 67th Avenue and Indian School Road (263 crashes), 67th Avenue and McDowell Road (251 crashes), and 75th Avenue and Indian School Road (249 crashes). The stretch of Indian School Road between 53rd Avenue and 91st Avenue is particularly notorious for left-turn crashes and side-impact collisions. Many of the highest-crash intersections are concentrated on Phoenix's west side, where wide arterials carry heavy traffic at speeds that leave little margin for error.
Maricopa County recorded 88,094 total crashes in 2024, resulting in 25,990 injuries and 560 fatalities. Phoenix alone averaged roughly 102 crashes per day — approximately one every 14 minutes. Speeding contributed to 417 deaths and over 20,700 injuries statewide. At intersection speeds of 40 mph or more — typical on major Phoenix arterials — a T-bone crash can be catastrophic because the side of a vehicle has far less structural protection than the front or rear.
Why side impacts cause severe injuries
The side of a vehicle offers the least protection in a collision. Unlike the front and rear, which have crumple zones and engine blocks to absorb energy, the side panel is just a thin door, a window, and inches of space between the occupant and the impact. In a T-bone crash, the striking vehicle's front end — its most reinforced structure — hits the other car's weakest point.
The most common injuries from T-bone accidents include traumatic brain injuries from the head striking the side window, door frame, or B-pillar. Spinal injuries are extremely common because the sudden lateral force causes whiplash, herniated discs, and cervical spine damage. Broken ribs and chest injuries affect nearly half of T-bone victims — the blunt force can puncture lungs or damage the thoracic aorta. Pelvic fractures are uniquely elevated in side impacts because the door intrudes directly into the occupant's hip area. Internal organ damage to the liver, spleen, and kidneys is also frequent due to the lateral force vector.
Psychological injuries matter too. Many T-bone accident survivors develop PTSD, anxiety, and depression — especially intersection anxiety that makes it difficult to drive through the same type of intersection. These are compensable injuries under Arizona law. Do not minimize your mental health symptoms when documenting your claim.
How fault is determined in a Phoenix T-bone accident
Arizona is a fault state — the driver who caused the crash is responsible for damages. In a T-bone collision, fault typically comes down to who had the right of way. Arizona's right-of-way statutes are specific. A.R.S. 28-771 says that when two vehicles approach an intersection from different streets at approximately the same time, the driver on the left must yield to the driver on the right. A.R.S. 28-772 requires a driver making a left turn to yield to oncoming traffic. A.R.S. 28-773 requires drivers at a stop sign to stop and then yield to vehicles in the intersection or approaching close enough to be an immediate hazard.
Running a red light (A.R.S. 28-645) is one of the clearest fault indicators in a T-bone crash. If the other driver ran a red light and hit you broadside, they violated a traffic control signal — that is strong evidence of negligence. Phoenix shelved its red-light camera program in early 2026, but nearby Scottsdale still operates an active photo enforcement system. Traffic cameras, dashcam footage, and surveillance cameras from nearby businesses are critical for proving who entered the intersection first.
Police reports are important but not the final word on fault. Officers document observations, driver and witness statements, and note traffic violations. However, an attorney can challenge police conclusions with independent evidence — accident reconstruction experts, physical evidence like skid marks and vehicle damage patterns, and surveillance footage. Arizona's pure comparative negligence system means that even if you share some fault, you can still recover. Your damages are reduced by your percentage of fault, but there is no threshold that bars recovery entirely.
Evidence that matters in T-bone accident claims
The outcome of your claim depends on the evidence you gather. Start at the scene. Photograph everything — vehicle damage from multiple angles, skid marks, debris, the intersection layout, traffic signals, stop signs, and road conditions. Take wide shots that show the full intersection and close-ups of the damage. If there is paint transfer on your vehicle from the other car, photograph it before anyone touches the vehicles.
Surveillance footage is often the most powerful evidence in a T-bone case. Look for cameras on nearby gas stations, convenience stores, banks, restaurants, and apartment complexes. Doorbell cameras on nearby homes may have captured the crash. Most businesses overwrite footage within 24 to 72 hours, so act immediately. Ask the business to preserve the footage or have an attorney send a preservation letter. ADOT operates freeway cameras, and some Phoenix intersections have traffic monitoring cameras.
Witness testimony from other drivers, passengers, and pedestrians who saw the crash is critical — especially for establishing which driver had the green light. Get names and phone numbers at the scene. Medical records starting from the day of the crash document the causal link between the accident and your injuries. Follow your doctor's treatment plan without gaps — insurance companies use treatment gaps to argue your injuries are not serious or are unrelated to the crash.
Arizona's comparative negligence and your T-bone claim
Arizona follows pure comparative negligence under A.R.S. 12-2505. This means you can recover damages even if you were partially at fault for the T-bone accident. Your compensation is reduced by your percentage of fault. If your damages total $200,000 and you are found 20% at fault, you recover $160,000. There is no threshold that bars recovery — even at 99% fault, you can still recover 1% of your damages.
Insurance companies frequently try to shift blame in T-bone cases. They may argue you were speeding through the intersection, that you failed to keep a proper lookout, or that you could have avoided the collision. Do not accept fault or make recorded statements to the other driver's insurance company without consulting an attorney. Your own statements can be used to increase your assigned percentage of fault and reduce your recovery.
Under A.R.S. 12-2506, Arizona follows several liability — each defendant is liable only in proportion to their percentage of fault. If multiple parties share responsibility (for example, the other driver and a government entity responsible for a malfunctioning traffic signal), each pays their share. This makes it important to identify all potentially responsible parties early in your claim.
Filing deadlines and government claims
Arizona's statute of limitations for personal injury is 2 years from the date of injury under A.R.S. 12-542. Miss this deadline and your claim is barred. For wrongful death, the deadline is also 2 years from the date of death. These deadlines are strictly enforced by Arizona courts.
If a government entity may share fault — for example, a malfunctioning traffic signal, missing signage, poor intersection design, or a city vehicle involved in the crash — you must file a notice of claim within 180 days under A.R.S. 12-821.01. This is approximately 6 months, and missing it can bar your claim entirely even though the general 2-year statute of limitations has not expired. The actual lawsuit against a government entity must be filed within 1 year under A.R.S. 12-821.
Do not wait until near any deadline to act. Evidence disappears fast — surveillance footage is overwritten within days, witnesses relocate, and physical evidence at the intersection is cleaned up. The strength of your claim depends on what you can prove, and proof degrades over time. Start building your case immediately after the crash.
What to do about medical treatment after a T-bone accident
Get a medical evaluation within 24 hours of the crash, even if you feel fine. Adrenaline masks pain. T-bone accident injuries — especially concussions, internal bleeding, and spinal injuries — may not produce symptoms for hours or days. A same-day or next-day medical evaluation creates a documented link between the crash and your injuries. If you wait weeks before seeing a doctor, the insurance company will argue your injuries were caused by something else.
Follow your treatment plan without gaps. Attend every appointment. Complete every course of physical therapy. If you skip appointments or stop treatment early, the insurance company will use those gaps to argue you were not seriously hurt. Keep a pain journal documenting your daily symptoms, how the injuries affect your ability to work and perform daily activities, and any medications you are taking. This contemporaneous record is far more persuasive than trying to recall details months later.
Keep all medical bills and records organized. Request copies of everything — emergency room records, imaging reports, specialist evaluations, physical therapy notes, and prescription records. Your medical expenses are a major component of your damages, and gaps in documentation translate to gaps in compensation.
Get Your Free Injury Claim Check
Were you hit in a T-bone collision at a Phoenix intersection? Get your free Injury Claim Check. You will answer a few questions about your accident, injuries, and treatment, and we will provide a personalized report covering your potential claim — including how fault might be allocated, what your injuries could be worth, and whether connecting with a Phoenix personal injury attorney makes sense for your situation.
Side impact crashes are serious. The injuries are often severe, the medical bills add up fast, and the insurance company is already building its case. Start building yours. The Injury Claim Check is free, confidential, and takes less time than waiting at a red light.