Car Accident on I-10 in Phoenix: What to Know

Your first priority is getting out of the travel lanes. If your vehicle is driveable, pull to the right shoulder or the nearest exit. If it is not driveable, turn on your hazard lights and stay inside the vehicle with your seatbelt fastened until emergency responders arrive — getting out of a disabled vehicle on I-10 is extremely dangerous due to speeds and traffic volume. Secondary crashes — where other vehicles strike disabled vehicles or people standing on the highway — are a leading cause of additional fatalities on Phoenix freeways.

Call 911 immediately. Tell the dispatcher your location (mile marker, nearest exit, direction of travel) and whether anyone is injured. For I-10 crashes, either Phoenix Police, Arizona Department of Public Safety (DPS), or the relevant municipal police department will respond depending on the jurisdiction. ADOT's Freeway Service Patrol also monitors I-10 and may respond to assist with traffic control and towing.

If you are physically able and can safely exit the vehicle, move behind the guardrail or to the far edge of the shoulder. Never stand in the travel lanes, in front of or behind your vehicle, or on the highway side of the barrier. If the crash occurred at night, use your phone's flashlight or reflective materials to make yourself visible. Arizona's Move Over law (A.R.S. 28-775) requires other drivers to move over a lane or slow down when passing stopped vehicles with hazard lights, but not all drivers comply.

The I-10/I-17 Stack interchange is one of the most heavily trafficked interchanges in the Phoenix metro. Two major interstates converge, creating intense weaving and merging conflicts. The 5-mile stretch between exits 143A and 147A — centered on the Stack — is the second-deadliest segment of highway in Arizona, with 39 crashes and 47 deaths in recent tracking data.

The Broadway Curve carries over 300,000 vehicles per day along an 11-mile stretch from the Loop 202 Santan/South Mountain Freeway interchange to I-17 near Sky Harbor Airport. ADOT completed its largest-ever freeway improvement project on this section in late 2025, adding lanes and rebuilding ramps. Even with the improvements, the sheer volume of traffic makes this corridor high-risk for rear-end collisions, lane-change crashes, and congestion-related pileups.

The Mini-Stack (I-10/SR 51/Loop 202 interchange) is another high-conflict zone. Multiple ramp connections in a short distance force drivers to weave across lanes quickly, increasing the likelihood of sideswipe and merge crashes. West of Phoenix, I-10 through the Tonopah corridor crosses open desert and agricultural land where dust storms can reduce visibility to zero in seconds — this stretch is particularly prone to multi-vehicle pileups during haboob season.

Highway crashes require aggressive evidence collection because conditions change rapidly. Photograph everything you can safely access: vehicle damage, skid marks, road debris, guardrail damage, lane markings, construction zone signs, and your injuries. Capture wide shots that show the overall scene and close-ups of specific damage. Include mile markers or exit signs in your photos to establish location.

ADOT operates over 400 traffic cameras statewide, with heavy coverage along I-10 through Phoenix. These cameras may have captured the crash or the moments leading up to it. Camera feeds are available at az511.gov, but recorded footage requires a public records request to ADOT. Submit your request promptly — include the exact location, date, and time of the crash. An attorney can also issue a subpoena to compel release of footage. Footage retention periods vary, so act within days, not weeks.

Other evidence sources for I-10 crashes include electronic message signs (which display speed advisories and warnings that may be relevant to fault), ADOT construction zone cameras, nearby business security cameras at freeway-adjacent properties, dashcam footage from your vehicle or other drivers, and electronic data recorder (EDR) data from vehicles involved. Trucking companies are required to preserve electronic logging device (ELD) data and dashcam footage — if a commercial truck was involved, your attorney should send a spoliation letter immediately to prevent data destruction.

Dust storms (haboobs) are the third-deadliest weather hazard in Arizona. I-10 west of Phoenix is particularly vulnerable — channelized dust can appear suddenly and reduce visibility to zero in seconds. ADOT's 'Pull Aside Stay Alive' campaign advises drivers to completely exit the freeway or pull off the road, park, turn off all lights (including headlights and hazards), take your foot off the brake, and wait for the storm to pass. Multi-vehicle pileups during dust events are common and often involve commercial trucks.

Construction zones on I-10 carry reduced speed limits — typically 55 mph — and all speeding fines are doubled when workers are present. The Broadway Curve project, ADOT's largest freeway project, was completed in late 2025, but new projects are ongoing: the I-10 Wild Horse Pass corridor improvements, the Gila River bridges replacement (expected completion summer 2026), and the I-10/Loop 101 interchange project (construction starting spring 2026). Rear-end collisions are the most common crash type in construction zones, caused by sudden speed reductions, lane shifts, and narrowed lanes.

Heavy truck traffic is another I-10 hazard. I-10 is a major transcontinental freight route connecting Phoenix to Los Angeles and Tucson. Commercial trucks have longer stopping distances, wider blind spots, and cause more severe injuries in crashes. If a truck was involved in your crash, the trucking company's insurance limits are typically much higher than personal auto policies ($750,000 to $5 million), which directly affects the potential value of your claim.

Arizona follows pure comparative negligence under A.R.S. 12-2505. You can recover damages even if you were partially at fault — your award is reduced by your percentage of fault. There is no threshold that bars recovery entirely. If you are 30% at fault and your damages are $200,000, you recover $140,000.

In highway crashes, fault allocation can be complex. Multiple parties may share responsibility: the other driver, a trucking company, ADOT (for road design or maintenance defects), a construction contractor (for inadequate signage or lane markings), or even a vehicle manufacturer (for defective brakes or tires). Each responsible party's insurer will try to shift fault to others — and to you. Evidence from the scene is what controls the fault determination.

Common fault arguments in I-10 crashes include speeding (exceeding the posted 65 mph or the reduced construction zone speed), following too closely (rear-end crashes in congestion), improper lane changes (sideswipe crashes near interchanges), and failure to adjust speed for conditions (dust, rain, construction). Dashcam footage, traffic camera footage, and crash reconstruction experts can help establish what happened.

Highway crashes often involve more parties than a standard intersection collision. If a commercial truck is involved, both the driver and the trucking company may be liable. If a road defect contributed to the crash — inadequate signage, a poorly designed merge, standing water, or missing guardrails — ADOT or the responsible government entity may share liability. If a construction zone was poorly managed, the construction contractor may be at fault.

Claims against government entities in Arizona follow special rules. Under A.R.S. 12-821.01, you must file a notice of claim with the government entity within 180 days of the injury — not the standard 2-year statute of limitations. Missing this 180-day deadline can bar your claim entirely. If ADOT, the City of Phoenix, or any government agency may share fault for your highway crash, this short deadline is critical.

If a vehicle defect contributed to the crash — tire blowout, brake failure, accelerator malfunction — you may have a product liability claim against the manufacturer. Vehicle EDR ('black box') data can establish what the vehicle systems were doing in the seconds before impact. Your attorney should request that all vehicles involved be preserved for inspection before they are repaired or scrapped.

Arizona's statute of limitations for personal injury is 2 years from the date of injury (A.R.S. 12-542). This applies to claims against other drivers, trucking companies, and private parties. For wrongful death, the deadline is 2 years from the date of death.

The 180-day notice of claim deadline for government entities (A.R.S. 12-821.01) is far shorter and is the deadline most likely to catch highway crash victims off guard. If the crash involved a road defect, missing signage, or any condition that ADOT or a municipal agency was responsible for maintaining, the notice of claim must be filed within 180 days. Failure to file the notice is a jurisdictional bar — it cannot be waived or extended.

For minors injured in highway crashes, the statute of limitations is tolled until the child turns 18, after which they have 2 years to file (A.R.S. 12-502). This extended deadline does not apply to the 180-day government notice of claim — a parent or guardian must still file the notice within 180 days on behalf of the injured minor.

Were you injured in a crash on I-10 or another Phoenix highway? Get your free Injury Claim Check. You will answer a few questions about your accident and injuries, and we will provide a personalized report covering your potential claim — including whether multiple parties may be liable, what evidence to preserve, and whether connecting with a Phoenix personal injury attorney makes sense for your situation.

Highway crashes at freeway speeds cause more severe injuries than surface-street collisions. Higher speeds mean greater force of impact, longer treatment, and larger medical bills. Arizona law protects your right to recover damages from every party at fault. Start with the Injury Claim Check — it is free, confidential, and takes less time than your next commute on I-10.