Highway Accident in Des Moines: Your Rights and Next Steps

Speeding is the leading factor in Des Moines highway crashes. At highway speeds of 55–70 mph, stopping distances stretch to 300 feet or more, and the force of impact increases exponentially. I-235 through downtown Des Moines has a posted speed limit of 55 mph through the urban core, but actual travel speeds frequently exceed that during lighter traffic periods, while congestion during rush hours creates dangerous speed differentials between lanes.

Distracted driving — especially phone use — is a growing factor. At 65 mph, a driver looking at a phone for 5 seconds travels the length of a football field without watching the road. On I-35 and I-80, where merging traffic from interchanges, construction zones, and heavy truck traffic all demand constant attention, even brief distraction can be catastrophic.

Unsafe merging and lane changes account for a significant share of highway crashes, particularly at the I-35/I-80 interchange south of Des Moines and the I-235 interchanges with Martin Luther King Jr. Parkway, 31st Street, and University Avenue. Truck traffic adds complexity — large commercial vehicles have significant blind spots and require much longer stopping distances. Following too closely behind trucks on I-80 or I-35 is one of the most common setups for rear-end crashes on Des Moines highways.

The physics are straightforward: kinetic energy increases with the square of velocity. A crash at 65 mph involves roughly four times the energy of a crash at 30 mph. This means highway accidents consistently produce more severe injuries than crashes on city streets — traumatic brain injuries, spinal cord injuries, multiple fractures, internal organ damage, and crush injuries.

Multi-vehicle pileups are a particular risk on Des Moines highways, especially during Iowa's winter months when fog, ice, and blowing snow can reduce visibility to near zero on I-80 and I-35. Chain-reaction crashes can involve dozens of vehicles and produce catastrophic injuries. Even with modern vehicle safety systems, the forces involved in highway-speed collisions regularly exceed what seatbelts and airbags can fully mitigate.

Truck-involved highway crashes are disproportionately severe. A fully loaded semi-truck weighs up to 80,000 pounds — roughly 20 times more than a passenger car. When a truck rear-ends a car at highway speed, or when a car slides under a truck trailer (an underride crash), the results are often fatal or permanently disabling. The I-80 corridor through Des Moines carries some of the heaviest truck traffic in the Midwest.

Multi-vehicle highway crashes near Des Moines involve complicated fault determinations. Iowa's comparative fault system (Iowa Code § 668.3) means each driver's fault percentage is assessed separately, and your recovery is reduced by your own fault percentage. If multiple drivers contributed to a pileup, each may bear partial responsibility — and each driver's insurance may owe a share of your damages.

The Iowa DOT itself may bear partial liability if highway design defects, inadequate signage, failed traffic signals, or poor maintenance contributed to the crash. Government liability claims in Iowa are governed by the Iowa Tort Claims Act (Iowa Code Chapter 669), which has specific notice requirements and a shorter deadline. If you believe highway conditions contributed to your crash, consult an attorney promptly.

Trucking company liability is also relevant for crashes involving commercial vehicles. Under federal regulations, the carrier is responsible for driver hiring, training, hours-of-service compliance, and vehicle maintenance. If a trucking company allowed a fatigued driver to operate on I-80, or failed to maintain brakes on a truck that rear-ended you on I-35, the company may be liable alongside the driver.

Move to safety first. If your vehicle is drivable, pull to the right shoulder or a safe area away from traffic lanes. Turn on hazard lights. If you cannot move the vehicle, stay belted inside with hazard lights on — standing on an Iowa highway shoulder is dangerous, especially at night or in poor visibility. Call 911 immediately.

Document the scene thoroughly. Photograph vehicle damage from all angles, the road layout, lane markings, traffic signs, any skid marks, debris, and weather or visibility conditions. If multiple vehicles are involved, photograph each vehicle's position and damage. Note the time, road conditions, and any construction zones. These details are critical for accident reconstruction if liability is disputed.

Seek medical attention even if you feel fine. Adrenaline masks pain, and internal injuries from highway-speed impacts may not produce immediate symptoms. UnityPoint Health–Iowa Methodist Medical Center, a Level I trauma center, and MercyOne Des Moines Medical Center, a Level II trauma center, are both equipped for serious highway crash injuries. Emergency departments document injuries with the detail needed for your claim, and delayed treatment gives insurers ammunition to argue your injuries were not caused by the crash.

Iowa follows modified comparative fault under Iowa Code § 668.3. You can recover damages as long as your fault does not exceed the combined fault of all defendants. If you are found 30% at fault, your recovery is reduced by 30%. If you are found 51% or more at fault, you recover nothing.

In highway accidents, fault is often shared among multiple parties. You may have been speeding slightly, while the other driver changed lanes without signaling, and a third vehicle was following too closely. Each driver's fault percentage is determined separately, and your damages are reduced only by your own share. This makes thorough documentation of all contributing factors — speed, lane positions, signaling, road conditions — essential to minimizing your assigned fault.

Insurance adjusters will look for any reason to increase your fault percentage and reduce their payout. Common arguments include: you were exceeding the speed limit, you were following too closely, you failed to react in time, or you were distracted. Dashcam footage, witness statements, and the police report are your best tools for countering these arguments.

Iowa's minimum liability insurance is $20,000 per person, $40,000 per accident, and $15,000 for property damage. Highway crashes with severe injuries routinely produce damages that far exceed these minimums. If the at-fault driver carries only minimum coverage, $20,000 will not come close to covering a traumatic brain injury, spinal surgery, or extended ICU stay.

Your uninsured/underinsured motorist (UM/UIM) coverage is critical in these situations. Iowa law requires insurers to offer UM/UIM coverage to all policyholders. UM/UIM coverage pays the difference between the at-fault driver's limits and your actual damages, up to your UM/UIM policy limits.

In multi-vehicle pileups, stacking multiple at-fault drivers' insurance policies can increase total available coverage. If three drivers each carry $100,000 in liability coverage and all share fault for your injuries, the combined coverage pool is significantly larger than a single-vehicle accident. An attorney experienced with multi-vehicle claims can help maximize recovery across multiple policies.

Iowa's statute of limitations for personal injury is 2 years from the date of injury under Iowa Code § 614.1(2). For wrongful death, the deadline is also 2 years from the date of death. These deadlines are absolute — file one day late and your claim is permanently barred.

If the Iowa DOT or a government entity is potentially liable — for highway design defects, maintenance failures, or inadequate signage — the Iowa Tort Claims Act (Iowa Code Chapter 669) imposes additional requirements. You must file a written claim with the state before filing a lawsuit, and there may be shorter notice deadlines. Government liability claims have unique procedural requirements that can trip up even experienced attorneys.

Iowa law requires drivers to report accidents involving injury or death to law enforcement immediately (Iowa Code § 321.266). Accidents with property damage of $1,500 or more must be reported to the Iowa DOT within 72 hours. For highway crashes with significant damage, the Iowa State Patrol or local law enforcement will typically generate a detailed crash report, which becomes key evidence in your claim.

Were you injured in a highway accident near Des Moines? 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 filing deadline, Iowa fault rules, and whether connecting with an Iowa personal injury attorney makes sense for your situation.

Highway crashes often involve complex liability — multiple vehicles, trucking companies, and potentially government entities. The at-fault driver's minimum coverage may not come close to covering your actual damages. Understanding the full picture before you speak with an insurance adjuster is critical. Free, confidential, and takes less time than waiting on hold with an insurance company.