Highway AccidentUpdated March 2026

Highway Car Accident in Denver: I-25, I-70, I-225 and Beyond

Denver's highway system — I-25, I-70, I-225, C-470, and US-36 — carries hundreds of thousands of vehicles daily through one of the fastest-growing metro areas in the country. High-speed highway crashes produce the most severe injuries: traumatic brain injuries, spinal cord damage, multiple fractures, and internal organ damage. The I-25/I-70 interchange (the Mousetrap) is one of Colorado's most crash-prone locations. You have 3 years from the date of a motor vehicle injury to file a lawsuit (Colo. Rev. Stat. § 13-80-101), and Colorado's modified comparative negligence rule (§ 13-21-111) bars recovery at 50% or more fault. Here is what to do after a highway crash in Denver.

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Key Takeaways

  • Highway crashes at 55-75 mph produce far more severe injuries than surface street collisions — traumatic brain injuries, spinal cord damage, and internal injuries are common.
  • Stay in your vehicle with your seatbelt on after a highway crash unless there is fire or an immediate safety hazard. Secondary crashes on I-25 and I-70 are a leading cause of death.
  • Colorado's statute of limitations for motor vehicle injuries is 3 years (Colo. Rev. Stat. § 13-80-101).
  • Colorado's 50% comparative fault bar means you recover nothing if you are 50% or more at fault (§ 13-21-111).
  • Multi-vehicle highway pileups involve complex fault determinations — multiple insurers and multiple at-fault parties are common.
  • CDOT traffic cameras and Colorado State Patrol dashcams may have captured your crash — request footage early before it is overwritten.
1

Stay safe and call 911

After a highway crash in Denver, your first priority is avoiding a secondary collision. If your vehicle is drivable and you can safely move to the shoulder, do so. If not, stay belted in your vehicle with hazard lights on. Do not stand in traffic lanes or on the highway shoulder if vehicles are passing at high speed. Secondary crashes — where another vehicle hits the original crash scene — are one of the deadliest hazards on I-25 and I-70.

Call 911 immediately. Tell the dispatcher your highway (I-25, I-70, I-225, C-470, US-36), direction of travel, nearest exit or mile marker, number of vehicles involved, and whether anyone appears seriously injured. Colorado State Patrol responds to most highway crashes. For multi-vehicle crashes or crashes involving serious injuries, expect fire and EMS response as well.

Do not attempt to direct traffic or clear debris from the highway. Wait in your vehicle or behind a barrier for emergency responders. If another vehicle's occupants appear injured, call 911 with updated information but do not put yourself in danger trying to help.

2

Document the crash scene

Once it is safe, document the scene thoroughly. Highway crashes create large debris fields and complex damage patterns. Photograph all vehicles from multiple angles, focusing on the impact points. Photograph skid marks, guardrail damage, road conditions, and weather visibility. Take wide-angle photos showing the overall scene layout — lane positions, distance between vehicles, and any road construction or lane closures.

Highway crashes often involve multiple vehicles and disputed fault. Witness testimony is critical. Get names and phone numbers from other drivers and passengers who saw the crash unfold. Note whether any nearby vehicles have dashcams. CDOT maintains traffic cameras along I-25, I-70, and other major highways — request footage through your attorney or police before it is overwritten.

Exchange insurance information with all other drivers involved. In a multi-vehicle crash, get information from every party, not just the driver you believe was at fault. Fault determination in highway pileups is complex and may involve drivers you did not directly collide with.

3

Get emergency medical treatment

Highway crashes at 55-75 mph cause injuries that surface street crashes typically do not. The force of a 65 mph collision is roughly four times greater than a 35 mph crash. Common highway crash injuries include traumatic brain injuries (even with airbag deployment), spinal cord injuries and paralysis, multiple fractures, internal organ damage and internal bleeding, chest injuries from seatbelt and steering wheel impact, and severe lacerations from broken glass and vehicle intrusion.

If EMS transports you from the scene, you are going to the right place. If you are released at the scene but have any symptoms — headache, dizziness, confusion, chest pain, abdominal pain, neck or back pain — go to a Denver ER immediately. Denver Health Medical Center is a Level I trauma center. UCHealth University of Colorado Hospital and Swedish Medical Center also handle major trauma cases.

Follow every medical recommendation. Highway crash injuries often require extended treatment: surgery, physical therapy, neurological evaluation, and rehabilitation. Document every visit, every bill, and every work day missed. These records determine the value of your claim.

4

Fault determination in highway crashes

Highway crashes in Denver involve speed, multiple lanes, merging traffic, construction zones, and sometimes chain-reaction collisions. Fault is rarely as clear as a simple rear-end crash. Colorado State Patrol or Denver PD will investigate and produce a crash report assigning contributing factors to each driver.

Common fault scenarios on Denver highways include: following too closely at highway speed, unsafe lane changes on I-25 or I-70, failure to yield when merging from on-ramps, distracted driving at highway speed, speeding in construction zones (Colorado doubles fines in work zones), driving too fast for weather conditions (rain, snow, ice), and mechanical failure (tire blowouts, brake failure). In multi-vehicle pileups, fault may be distributed among several drivers.

Colorado's modified comparative negligence rule (Colo. Rev. Stat. § 13-21-111) reduces your compensation by your percentage of fault and bars recovery entirely at 50% or more. In a complex highway crash, your fault percentage is often contested. Strong evidence — dashcam footage, witness statements, police reports citing specific violations — determines where fault lands.

5

Multi-vehicle pileups and shared fault

Denver highway pileups — especially winter storms on I-25 and I-70 — can involve dozens of vehicles. Each collision in a chain reaction is evaluated separately for fault. The initial cause of the pileup (a jackknifed semi, a sudden stop, black ice) may be attributed to one driver, weather, or even CDOT for road maintenance failures.

In multi-vehicle crashes, you may have claims against multiple at-fault drivers and their insurance companies. Each insurer will attempt to shift fault to other parties. This is where documentation matters most. Your position in the pileup, the direction of impact on your vehicle, and witness testimony about the sequence of collisions all help establish which driver or drivers caused your injuries.

If CDOT road conditions contributed to the crash (unplowed ice, missing signage in a construction zone, debris in the roadway), you may have a claim against the state. Government claims under the Colorado Governmental Immunity Act require filing a notice within 182 days — do not miss this deadline.

6

Construction zone crashes on Denver highways

Denver's highways are under near-constant construction. The I-25 Gap project, I-70 Mountain Corridor improvements, and numerous interchange reconstructions create narrowed lanes, shifted traffic patterns, reduced speed limits, and confused drivers. Construction zone crashes carry additional legal considerations.

Colorado doubles traffic fines in active construction zones. If the at-fault driver was cited for speeding or reckless driving in a construction zone, that violation strengthens your claim. If the construction zone itself was improperly marked — missing signs, inadequate lane markings, insufficient barrier protection — the construction company or CDOT may share liability. Preserve photos of the construction zone layout and any signage (or lack thereof).

7

Key deadlines for highway accident claims in Colorado

Colorado's statute of limitations for motor vehicle injury claims is 3 years from the date of injury (Colo. Rev. Stat. § 13-80-101). Wrongful death claims have a 2-year deadline. If a government vehicle or government road maintenance was a factor, you must file a notice of claim within 182 days under the CGIA.

For serious highway crash injuries — TBI, spinal cord damage, multiple surgeries — treatment can last months or years. You need to know the full extent of your injuries before settling, but do not wait too long to take legal action. Consult an attorney early to preserve deadlines while you focus on recovery.

8

Get a free assessment of your highway accident claim

Injured in a highway crash in Denver? Take our free 2-minute assessment. Answer a few questions about the crash, your injuries, and the circumstances, and we will provide a personalized report covering your potential claim value and next steps. We can connect you with a Denver attorney experienced in serious highway crash litigation.

Highway crashes change lives in seconds. The injuries are more severe, the medical bills are higher, the recovery is longer, and the legal issues are more complex than typical surface street collisions. Get expert guidance early. Start with the assessment — it is free, confidential, and gives you a clear picture of your options.

Highway Accidents in Denver at a Glance

~22,000

total traffic crashes per year in Denver, with a disproportionate share occurring on I-25, I-70, and I-225

Denver Police Department / CDOT

628

traffic fatalities in Colorado in 2023, with a significant portion on interstate highways

Colorado Department of Transportation (CDOT)

50% Bar

Colorado's comparative fault threshold — at 50% or more fault, you recover nothing

Colo. Rev. Stat. § 13-21-111

3 Years

statute of limitations for motor vehicle injury claims in Colorado

Colo. Rev. Stat. § 13-80-101

Most dangerous highway stretches in Denver

The I-25/I-70 interchange (the Mousetrap) is one of Colorado's highest-crash locations, with tight curves, merging lanes, and high-speed traffic converging from four directions. I-25 through the Tech Center corridor between I-225 and Lincoln Avenue sees daily congestion-related crashes. I-70 westbound into the mountains is especially dangerous during ski season, with icy conditions and heavy traffic producing multi-vehicle pileups. I-225 between I-25 and I-70 has high crash rates at the Yosemite Street and Parker Road interchanges. C-470 and US-36 round out Denver's high-crash highway corridors.

Colorado State Patrol and highway crash investigation

Colorado State Patrol (CSP) investigates most highway crashes on Colorado interstates. For serious or fatal crashes, CSP's Major Crash Team conducts detailed reconstruction including speed analysis, vehicle data recorder downloads, skid mark measurement, and witness interviews. Request the crash report through CSP's online system or by contacting the investigating trooper. CSP reports typically take 7-14 days to complete. For crashes on I-25 within Denver city limits, Denver PD may handle the investigation.

Winter driving and highway crashes in Denver

Denver averages 57 inches of snow per year, and winter storms cause highway crash spikes on I-25, I-70, and I-225. Colorado's Traction Law (C.R.S. § 42-4-106) requires adequate tires or chains on I-70 in the mountains and can be activated on any highway during storms. Driving on summer tires in a winter storm may constitute negligence. If the at-fault driver was using inappropriate tires during a winter crash, that fact supports your claim. CDOT's Cotrip.org provides real-time road conditions — screenshot the conditions at the time of your crash if possible.

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Highway Accident FAQ — Denver

Stay in your vehicle with your seatbelt on unless there is fire or an immediate safety hazard. Turn on hazard lights. Call 911 with your highway, direction, and nearest exit or mile marker. Do not stand in traffic lanes. Wait for Colorado State Patrol or Denver PD to arrive.

Colorado State Patrol investigates most interstate highway crashes. For serious or fatal crashes, CSP's Major Crash Team conducts detailed reconstruction. Denver PD may handle crashes on I-25 within Denver city limits. Request the crash report through CSP's online system or the investigating trooper.

Each collision in a chain reaction is evaluated separately. Fault may be distributed among multiple drivers based on following distance, speed, lane changes, and weather-related driving behavior. Police reports, dashcam footage, witness statements, and vehicle data recorders help establish the sequence and fault allocation.

Potentially. If CDOT failed to maintain safe road conditions — unplowed ice, missing signage, debris in the roadway, inadequate construction zone barriers — they may share liability. Government claims require filing a notice within 182 days under the Colorado Governmental Immunity Act. Consult an attorney immediately if you believe road conditions were a factor.

Yes. The kinetic energy in a crash increases exponentially with speed. A 65 mph collision generates roughly four times the force of a 35 mph crash. Highway crashes more commonly result in traumatic brain injuries, spinal cord injuries, multiple fractures, internal organ damage, and fatalities.

Truck crash claims involve additional parties (the trucking company, cargo loaders) and regulations (federal hours-of-service rules, maintenance requirements). Commercial trucks carry much higher insurance limits. If a semi, delivery truck, or commercial vehicle caused your crash, consult an attorney experienced in trucking litigation — these cases are significantly more complex and more valuable.

The statute of limitations for motor vehicle injury claims is 3 years (Colo. Rev. Stat. § 13-80-101). Wrongful death claims have a 2-year deadline. Government claims require 182-day notice under the CGIA. Do not wait — evidence from highway crashes (dashcam footage, traffic camera data) can be lost quickly.

Yes. Traffic fines are doubled in active Colorado construction zones. If the at-fault driver was cited for speeding or reckless driving in a work zone, that violation strengthens your injury claim. Improperly marked construction zones may also create liability for the construction company or CDOT.

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InjuryNextSteps.com provides general informational content and is not a law firm. The information on this page does not constitute legal advice and should not be relied upon as such. Every case is different. Contacting us does not create an attorney-client relationship. If you need legal advice, consult a licensed attorney in your jurisdiction. The legal information on this page references Colorado statutes and is current as of March 2026 but laws may change. Always verify legal questions with a qualified attorney.

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