Left-Turn Motorcycle Crashes: The Most Dangerous Intersection in Colorado
A car turns left. The driver looks, doesn't see you, and goes. You have less than a second to react. This is how Colorado riders die at intersections more than any other way — and it happens at every speed, on every road, to experienced riders who were doing everything right.
Nearly half of all fatal two-vehicle motorcycle crashes in the United States involve a vehicle turning left across a rider's path. In Colorado, where motorcyclists account for 24% of all traffic deaths despite representing just 3% of vehicles on the road, left-turn crashes are one of the primary contributors to that number every single riding season.
I'm Dylan Unger — a Denver personal injury attorney with 9+ years handling motorcycle accident cases, and a licensed motorcycle racer. When I take on a left-turn crash case, I understand the physics of what happened, I know how insurance adjusters are going to try to blame your speed, and I know exactly how to push back.
If you or someone you love was hit by a driver who turned left into your path, here's what you need to know.
Why Left-Turn Crashes Keep Happening
Drivers aren't always reckless. Sometimes they look directly at you and still don't see you. Understanding why helps build your case.
"Look But Fail to See"
Research shows that human brains are wired to detect threats of a certain size. A motorcycle's narrow profile simply doesn't trigger the same visual alarm as an oncoming car. A driver can look directly at an approaching rider and their brain processes the intersection as clear. NHTSA calls this the "Look But Fail to See" phenomenon, and it accounts for a significant portion of left-turn motorcycle fatalities.
Misjudged Speed and Distance
Because motorcycles are smaller, drivers consistently misjudge how fast they're approaching and how far away they are. A rider doing 40 mph looks like they're going slower and are farther away than they actually are. The driver thinks they have a safe gap to turn. They don't. Insurance companies will try to flip this into a speeding argument — which is exactly backwards from the physics of what happened.
Obstructed Sight Lines
Left-turn crashes happen more often at intersections with obstructed views — a stopped truck in the adjacent lane, a building on the corner, a glare angle that puts the sun directly behind an approaching rider. The driver's view is blocked for a fraction of a second and they commit to the turn. At that point you have nowhere to go.
Distracted and Inattentive Drivers
A driver checking their phone for two seconds at 30 mph travels the length of a basketball court without looking at the road. At a busy Denver intersection, that's more than enough time to miss an approaching motorcycle and initiate a left turn that ends someone's life. Distracted driving claims are increasingly provable — phones can be subpoenaed, and telematics data from the at-fault vehicle is often obtainable.
Who Is Liable in a Colorado Left-Turn Motorcycle Crash?
In the vast majority of left-turn crashes, the turning driver is at fault. Colorado law is clear: under C.R.S. § 42-4-702, a driver intending to turn left must yield the right of way to any vehicle approaching from the opposite direction that is close enough to constitute an immediate hazard. If a turning driver didn't yield and hit you, they violated that statute. That's negligence per se — meaning their legal duty was established by the traffic code, not just by general reasonableness standards.
Liability in a left-turn case can extend beyond the driver:
One of the most important things a left-turn crash attorney does early in a case is identify every potential source of liability and every available insurance policy. A policy limits demand against one driver may leave you significantly undercompensated if other parties and other policies exist.
The Speeding Argument — and How We Fight It
The most common defense in a left-turn motorcycle crash is this: the insurance company claims you were speeding, and that even if the driver was negligent, your speed made it impossible for them to judge the gap safely. They will use this to assign you a percentage of fault and reduce their payout accordingly.
Colorado follows a modified comparative negligence rule. Under C.R.S. § 13-21-111, your recovery is reduced by your percentage of fault — as long as you were less than 50% at fault. If they can push you past 50%, you recover nothing. Getting your fault percentage right is often the entire ballgame in a left-turn case.
Here's what I know from racing: speed is something you can measure. Crash reconstruction uses crush depth, skid marks, yaw marks, final resting positions, and witness statements to work backward to pre-impact speeds. When that data is preserved and analyzed correctly, it either confirms the speed argument or demolishes it. Insurance adjusters are not engineers. Their speeding claims are often assertions with no technical support — and we challenge them with actual reconstruction evidence.
The other angle: even if you were traveling at the speed limit, the driver's failure to see you doesn't become your fault. The duty to yield belongs to the turning driver. That duty exists regardless of how fast an oncoming vehicle is moving within the legal limit.
What a Left-Turn Motorcycle Crash Case Is Worth in Colorado
Left-turn crashes are high-impact collisions. Even at 30 mph, the forces involved can cause injuries that require surgery, months of recovery, and permanent limitations. The value of your case depends on several factors:
No case value can be assessed without knowing your specific facts — the insurance available, the severity of your injuries, the strength of the liability evidence, and the comparative fault picture. What I can tell you is that left-turn motorcycle crashes tend to produce serious injuries and strong liability, which is a combination that supports full and fair compensation when the case is built correctly from the start.
What to Do After a Left-Turn Crash in Denver
The first hours after a crash determine how much evidence gets preserved. Do these things if you're physically able to.
Left-Turn Motorcycle Crash — Common Questions
The driver said they didn't see me. Does that help my case?
"I didn't see them" is not a defense — it's an admission that the driver failed to keep a proper lookout, which is itself a form of negligence. Colorado law requires drivers to exercise reasonable care before turning, which includes making sure the path is clear of approaching vehicles. A driver who looks and fails to see an oncoming motorcycle has still violated their duty of care.
What if the other driver's insurance limits aren't enough to cover my injuries?
This is one of the most common problems in serious motorcycle crashes. Colorado's minimum liability limits are $25,000 per person — which covers almost nothing in a crash that requires surgery. If the at-fault driver is underinsured, your own uninsured/underinsured motorist (UM/UIM) coverage steps in to make up the difference, up to your policy limits. We identify all available coverage at the start of every case. Learn more about Colorado motorcycle insurance coverage.
How long do I have to file a claim in Colorado?
Colorado's statute of limitations for personal injury claims is three years from the date of the crash. If a government entity is involved — a city vehicle, a poorly designed or maintained intersection — you may need to file a written notice of claim within 180 days. Missing that deadline typically bars your claim entirely. Don't wait.
The insurance company is saying I was speeding. What do I do?
Don't respond to that claim without legal representation. The speeding argument is the most common tactic used to reduce fault percentage in left-turn motorcycle cases. A proper crash reconstruction — using physical evidence from the scene, vehicle damage, and road data — can establish your actual pre-impact speed and, in many cases, disprove the assertion entirely. We work with reconstruction experts when the facts support it.
Do I need a motorcycle accident attorney specifically, or will any personal injury lawyer do?
It matters. Left-turn motorcycle crash cases involve specific technical issues — sight distance, approach speed perception, rider dynamics, gear damage valuation — that a general PI attorney may not be equipped to handle as effectively. I handle motorcycle cases exclusively, I race motorcycles, and I've taken these cases to verdict. When an insurance adjuster tries to blame your gear, your speed, or your lane position, I know how to respond because I understand how motorcycles actually move through intersections.
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