Third-Party Claims for Colorado Construction Site Injuries

2026-09-25 • CO Plaintiffs

If you were hurt on a Colorado construction site, workers' compensation is usually not the only avenue available to you. Workers' comp covers medical bills and a portion of lost wages regardless of fault, but it generally bars you from suing your own employer. A third-party claim is separate. It is a personal injury case against someone other than your employer whose negligence contributed to the injury, such as a subcontractor, a general contractor you do not work for, a property owner, an equipment manufacturer, or a negligent driver. That second claim can reach categories of loss workers' comp does not pay, including pain and suffering.

How a Colorado construction accident third party claim differs from workers' comp

The two systems answer different questions. Workers' compensation asks whether you were injured in the course and scope of your employment. Fault does not matter. In exchange for that certainty, Colorado's workers' compensation system is generally the exclusive remedy against your employer, which is why an injured worker usually cannot file a negligence lawsuit against the company that signs their paychecks.

A third-party claim asks a different question: did some other person or company act unreasonably, and did that cause the injury? Because it is an ordinary negligence case, the recoverable damages are broader. A workers' comp claim typically pays medical treatment and a percentage of lost wages. A third-party claim can include:

The two claims can run at the same time. Filing one does not cancel the other, though as explained below, the workers' comp insurer will usually have a right to be repaid out of a third-party recovery.

Who can be a third party on a construction site

Construction sites are crowded with separate companies that are not your employer. Any of them can potentially be a defendant if their negligence played a role. Common examples include:

Identifying every potentially responsible party matters, because one defendant may have limited insurance while another has substantial coverage.

Deadlines that apply to construction injury claims

Colorado's general statute of limitations for personal injury actions is three years under C.R.S. 13-80-102. That is the deadline that applies to most construction site negligence and premises liability claims.

There is an important exception. If the injury arose from the use or operation of a motor vehicle, C.R.S. 13-80-101 sets a three year limitations period as well for actions for negligence resulting from motor vehicle use, and shorter periods apply to certain other categories. Because construction injuries frequently involve vehicles, trucks, and mobile equipment, the applicable deadline is not always obvious from the face of the accident.

Two more timing issues come up often on construction sites:

Because the deadline depends on who the defendant is and how the injury happened, the safe assumption is that the clock started on the day of the accident.

How comparative fault affects a construction site case

Colorado uses modified comparative fault with a 50 percent bar. A jury assigns a percentage of fault to everyone involved, including the injured worker. The award is then reduced by the injured person's share. If the injured person is found 50 percent or more at fault, they recover nothing.

This matters a great deal in construction cases, because defendants routinely argue that the worker ignored a safety rule, skipped fall protection, or used equipment improperly. A worker found 20 percent responsible for a $500,000 verdict would recover $400,000. A worker found 50 percent responsible would recover zero.

Colorado law also allows fault to be allocated to nonparties in some circumstances, which means a defendant may try to point at an absent company, including the injured worker's own employer, as the real cause. That does not revive a claim against the employer, but it can shift percentages.

Damages caps and the workers' comp lien

Economic damages such as medical bills and lost earnings are not capped in an ordinary Colorado negligence case. Noneconomic damages, meaning pain and suffering, emotional distress, and loss of enjoyment of life, are limited by statute to roughly $642,180, which a court may increase to approximately $1,000,000 if the plaintiff establishes justification by clear and convincing evidence. These figures are adjusted over time, so the number in force depends on the date of the injury.

The second financial reality is subrogation. When workers' compensation pays your medical treatment and wage benefits, the comp insurer generally has a right to be reimbursed out of any third-party recovery for what it already paid. That does not make the third-party claim pointless. It does mean the net figure is not the same as the gross settlement, and the size of the lien, and whether it can be reduced, is a significant part of resolving these cases.

Evidence that tends to matter in these claims

Construction sites change fast. Scaffolding comes down, excavations get filled, and equipment gets repaired or returned. Evidence that is routine to gather in the first weeks can be impossible to recover later. Materials that often prove important include:

An OSHA citation does not automatically establish negligence in a civil case, but the underlying investigation frequently documents conditions that no one else recorded.

The bottom line

Workers' compensation and a third-party claim are two different tracks, and many injured construction workers are eligible for both. Workers' comp pays quickly without regard to fault but is limited in scope and generally cannot be brought against your employer. A Colorado construction accident third party claim targets other companies on the site whose negligence contributed, and it can reach pain and suffering and full wage loss. Colorado's three year limitations period under C.R.S. 13-80-102, the 50 percent comparative fault bar, the noneconomic damages cap, and the workers' comp insurer's reimbursement rights all shape what a case is actually worth. Short notice deadlines apply when a government entity is involved, and physical evidence on an active site disappears fast.

This article is general information about Colorado law and is not legal advice. Laws change and every case is different. Talk to a licensed attorney about your situation.

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