Arizona Bicycle Accident Laws: ARS 28-815 | AZ Law Now

Arizona Bicycle Accident Lawyers

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Arizona recorded 1,379 bicycle crashes in 2024. That’s a 21% increase over 2023 and the highest total in five years. 44 cyclists died. 1,349 were injured. The fatality rate held at 3.19%, meaning roughly one in 31 reported bicycle crashes in Arizona is fatal.

These numbers come from ADOT’s 2024 Motor Vehicle Crash Facts report. They don’t include crashes that went unreported, and many bicycle crashes do. The actual toll is higher.

Maricopa County accounts for roughly 73% of all traffic crashes statewide. That ratio holds for bicycle crashes. Phoenix, Tempe, Mesa, Scottsdale, and Tucson consistently rank as the highest-crash cities for cyclists. Tempe alone recorded 15 intersection crashes resulting in serious injury or death in 2024.

Arizona Bicycle Laws: ARS 28-812 Through 28-817

Arizona treats cyclists as vehicle operators. Under ARS 28-812, bicyclists have all the rights and duties that apply to motor vehicle drivers on roadways. That means cyclists can use travel lanes, must obey traffic signals, and are entitled to the same right of way as cars.

Six statutes form Arizona’s bicycle law framework.

ARS 28-812 establishes that traffic laws apply to cyclists. ARS 28-813 prohibits carrying articles that prevent keeping at least one hand on handlebars. ARS 28-814 limits passengers to the number the bicycle is designed for. ARS 28-815 requires riding as far right as practicable, with exceptions for passing, turning left, avoiding hazards, and lanes too narrow for safe sharing.

ARS 28-816 mandates lights and reflectors at night: a white front light visible at 500 feet and a red rear reflector visible at 300 feet. ARS 28-817 requires brakes capable of making the wheel skid on dry, level pavement.

Arizona's three-foot passing law

Arizona requires motorists to maintain at least three feet of clearance when passing a cyclist. This isn’t a suggestion. It’s enforceable law. Violations are citable offenses, and in the context of a crash case, a three-foot violation is direct evidence of negligence. If a driver passed too closely and caused a collision, they broke the law.

The Five Most Common Bicycle Crash Patterns

Bicycle crashes in Arizona follow predictable patterns. Understanding them matters because each pattern points to a specific theory of liability.

Common Crash Types

Dooring

A driver or passenger opens a car door directly into the path of an approaching cyclist. The cyclist has almost no time to react. Dooring crashes cause facial fractures, dental damage, broken bones, and traumatic brain injuries. AZ Law Now recovered $100,000 from Hartford Insurance for a client injured in a dooring crash who required extensive dental restoration.

Right-hook

A driver turns right across a cyclist’s path, typically at an intersection or driveway. This is common where bike lanes run alongside right-turn lanes. The driver either didn’t see the cyclist or misjudged the closing speed. These crashes are almost always the driver’s fault.

Intersection crashes

Failure to yield is the leading cause of bicycle-motor vehicle crashes in Arizona. Drivers making left turns, running red lights, or rolling through stop signs account for the majority of intersection crashes involving cyclists.

Left-cross

An oncoming vehicle turns left in front of a cyclist traveling straight through an intersection. Closing speeds are high. The cyclist has minimal time to brake or evade. These crashes produce some of the most severe injuries.

Overtaking and rear-end

A driver strikes a cyclist from behind. Distracted driving, speeding, and failure to maintain the three-foot buffer are the primary causes. On roads without bike lanes, rear-end bicycle crashes are particularly common during low-light hours.

Where Bicycle Crashes Concentrate in Arizona

The data shows clear geographic patterns. Phoenix leads the state in total bicycle crashes. The most dangerous intersections include 99th Avenue and Lower Buckeye Road (411 total crashes in 2024) and 67th Avenue and McDowell Road.

Tempe’s cycling infrastructure is more developed than most Arizona cities, but the crash numbers remain high. College traffic around Arizona State University creates constant conflicts between cyclists and vehicles. Tempe recorded 15 intersection crashes with serious injury or death in 2024.

Mesa and Scottsdale follow similar patterns. Wide arterial roads with high speed limits and limited cycling infrastructure create persistent hazards.

The West Valley presents its own challenges. Buckeye, Goodyear, and surrounding communities have experienced rapid growth. Cycling infrastructure hasn’t kept up. Many arterial roads along routes like Yuma Road, Estrella Parkway, and Litchfield Road lack bike lanes entirely. Shoulders are narrow. Intersections weren’t designed with cyclists in mind.

The Trend Is Moving the Wrong Direction

Bicycle and pedestrian crashes have been on an upward trajectory in Arizona for several years. The 2024 numbers confirm the trend isn’t reversing. Crashes rose from 1,287 in 2023 to 1,379 in 2024. Deaths went from 42 to 44. Injuries climbed from 1,231 to 1,349.

Several factors drive the increase. Arizona’s population continues to grow faster than its infrastructure. Speed limits on many suburban arterials remain at 45 to 55 mph. Driver distraction from phones and in-vehicle screens continues to rise. And cycling itself is growing, putting more riders on roads that weren’t built for mixed traffic.

Injuries and the Long-Term Impact

Bicycle crashes produce severe injuries relative to impact speed. A cyclist hit at 30 mph absorbs the full force with nothing but clothing and possibly a helmet.

Common injuries include road rash covering large areas of skin, broken collarbones, wrists, and hips, traumatic brain injuries, spinal injuries, and facial fractures.

Many cyclists can’t work for weeks or months after a serious crash. Some face permanent disabilities. Physical therapy, surgical intervention, and long-term rehabilitation costs add up quickly.

The bicycle itself often needs replacement. High-end road bikes, gravel bikes, and e-bikes cost thousands of dollars. Property damage is a component of every bicycle crash claim alongside medical expenses, lost wages, pain and suffering, and future care needs.

Pure Comparative Negligence Protects Cyclists

Arizona follows pure comparative negligence under ARS 12-2505. Even if the cyclist bears some fault, perhaps for running a stop sign or riding without lights after dark, they can still recover damages. The award gets reduced by the cyclist’s percentage of fault, but it doesn’t disappear.

Insurance companies know this and try to shift fault aggressively. They’ll argue the cyclist wasn’t wearing a helmet, wasn’t in the bike lane, or wasn’t visible enough. An attorney who understands Arizona bicycle law can counter these arguments with the actual statute language and crash evidence.

Arizona has no caps on compensatory damages. No caps on non-economic damages. No caps on punitive damages. The recovery should reflect the actual harm.

AZ Law Now Bicycle Crash Results

Our firm has recovered meaningful compensation for Arizona cyclists. Two representative results from our case history.

$100,000 from Hartford Insurance for a dooring crash that required dental restoration. $50,000 from Liberty Mutual for a cyclist struck by a turning vehicle, recovering the full policy limits.

Every bicycle crash case is different. These results don’t guarantee a specific outcome. They show the kind of cases we handle and the recoveries we’ve achieved.

The Two-Year Deadline and the 180-Day Exception

Under ARS 12-542, you have two years from the date of the crash to file a personal injury claim. That clock starts ticking on the day of the crash, not the day you finish medical treatment.

If the crash involves a government entity, such as a road defect, a city vehicle, or a dangerous intersection design, the timeline compresses dramatically. ARS 12-821.01 requires a notice of claim within 180 days. The notice must include specific facts about the incident and a specific dollar amount. Arizona courts enforce this requirement strictly. Substantial compliance isn’t enough.

After a bicycle crash

A cyclist injured on Arizona roads can reach AZ Law Now at (602) 654-0202 or through the contact form. An initial review pulls ADOT crash data, intersection reports, and traffic camera footage. Intake is confidential. Representation is on contingency.

Recent Investigation

See our west valley dangerous intersections investigation for the data behind the pattern.

Frequently asked questions

What is Arizona's three-foot passing law?
Arizona law requires drivers to maintain at least three feet of clearance when passing a bicycle. Violations are citable offenses, and in a crash case, a three-foot violation is strong evidence of negligence. If a driver passed too closely and caused a collision, they broke the law and are liable for the resulting injuries.
Are bicyclists required to ride in bike lanes in Arizona?
No. Under ARS 28-815, cyclists may use bike lanes where available but aren't required to. Cyclists can leave the bike lane to avoid debris, make turns, pass other cyclists, or when the lane is too narrow for safe travel. Drivers must share the road regardless of whether a bike lane exists.
Does Arizona require bicycle helmets?
Arizona has no statewide helmet law for adults. Some local jurisdictions require helmets for riders under 18. However, not wearing a helmet may affect your claim if you suffered a head injury. Insurance companies sometimes argue comparative negligence, though this argument has limits when there's no legal requirement.
What should I do after a bicycle crash in Arizona?
Call 911 and get medical attention immediately. Don't move your bicycle until the scene is documented. Photograph the scene, the vehicle, your bike, and your injuries. Get the driver's information and witness contact details. Don't admit fault. Call an attorney before talking to any insurance company.
Can I still recover damages if I was partially at fault?
Yes. Arizona follows pure comparative negligence under ARS 12-2505. Even if you were partly at fault, you can recover compensation reduced by your percentage of responsibility. If you're found 20% at fault, you'd still recover 80% of your damages.
What is a dooring accident?
A dooring accident occurs when a driver or passenger opens a vehicle door into the path of an approaching cyclist. The cyclist has almost no time to react. These crashes cause serious injuries including facial fractures, dental damage, broken bones, and head trauma. The person who opened the door is liable.
What compensation can I recover after a bicycle crash?
Medical expenses, lost wages, bicycle replacement or repair costs, pain and suffering, and future medical needs. Arizona has no caps on personal injury damages. Bicycle crashes often cause severe injuries because riders have minimal protection. We calculate the full scope of damages including long-term care.
How long do I have to file a bicycle accident claim in Arizona?
Two years from the date of the crash under ARS 12-542. If a government entity is involved, such as a road defect or city vehicle, the notice of claim deadline is only 180 days under ARS 12-821.01. Don't wait. Evidence disappears and witnesses forget.
What if a road hazard caused my bicycle crash?
Potholes, cracked pavement, drainage grates, gravel, and debris can all cause serious bicycle crashes. If the hazard resulted from poor road maintenance, the responsible government entity may be liable. You must file a notice of claim within 180 days under ARS 12-821.01, including specific facts and a settlement amount.
Are electric bicycle riders covered by the same laws?
Arizona classifies e-bikes into three classes based on speed and motor type. Class 1 and 2 e-bikes are generally treated like traditional bicycles under Arizona law. Class 3 e-bikes face additional restrictions on certain paths. The same negligence rules apply when a driver causes a crash involving an e-bike rider.

Sources & references

Sources
  1. Arizona Department of Transportation. (2025). 2024 Arizona Motor Vehicle Crash Facts https://azdot.gov/sites/default/files/2025-07/2024-Crash-Facts.pdf
  2. Arizona Revised Statutes §§ 28-812 through 28-817: Bicycle regulations https://www.azleg.gov/ars/28/00812.htm
  3. Arizona Department of Transportation. (2014). ADOT Bike Book: Arizona Bicycling Street Smarts https://activetransportation.az.gov/sites/default/files/documents/files/adot-bike-book-2014.pdf
  4. Arizona Revised Statutes § 12-2505: Comparative Negligence https://www.azleg.gov/ars/12/02505.htm
  5. Arizona Revised Statutes § 12-542: Injury to Person; Statute of Limitations https://www.azleg.gov/ars/12/00542.htm
  6. Arizona Revised Statutes § 12-821.01: Notice of Claim Against Public Entity https://www.azleg.gov/ars/12/00821-01.htm
  7. Gage Mathers. (2024). Most Dangerous Intersections in Phoenix in 2024 https://gagemathers.com/what-are-the-10-most-dangerous-intersections-in-phoenix-in-2024/