Fault on a rear-end crash is usually the easy part. Douglas County files get fought over the severity of the injury and over whether the stop was reasonable.
You stopped for no reason. Where the lead vehicle slowed for a driveway rather than a signal, insurers argue the stop was arbitrary.
Turning into an access point on a commercial corridor is ordinary driving, and the geometry of the entrance usually establishes that. Photographs and camera footage answer it better than testimony.
The impact was too minor to injure anyone. Bumper systems are engineered to absorb and rebound from low-speed impacts rather than to record them, so visible damage tracks occupant injury poorly.
Same-day documentation, imaging and a treating physician opinion answer that directly. It surfaces most often in the retail approach crashes, where speeds genuinely are low.
Comparative fault should cut the claim in half. Under C.R.S. 13-21-111 an insurer needs to move only 50 percent of the fault to defeat the claim completely, which is why this argument is pushed hard even when it is weak.
Witness accounts and the scene evidence are what establish the sequence. On a corridor with constant turning movements the sequence is usually recoverable.
The symptoms come from an earlier condition. Prior records get requested to build an alternative explanation for neck and back findings.
A treating physician who can separate a pre-existing finding from an acute post-crash change is what answers it. The distinction is medical, and it needs to be documented as such.
The other driver had no coverage. Colorado is a fault-based state, so the claim runs against the at-fault driver liability insurer, and where that driver carries minimum limits or nothing, uninsured and underinsured coverage on your own policy or an employer commercial policy may apply.
Those questions come up often at an interchange carrying as much through traffic as I-25 and C-470 do.
Those questions are worked through in is Colorado a no-fault state and in hit by an uninsured driver in Colorado.