Top 5 Common Construction Site Accidents in Washington and What to Do If You're Injured

A ladder rung gives way. A load swings wider than expected. A trench wall shifts before anyone can react. These moments happen fast, and they happen often on Washington job sites.

Knowing the most common construction accidents in Washington helps workers recognize hazards before they cause harm and understand their options if they're hurt anyway. At Lehmbecker Law, our experienced construction accident attorneys work with injured tradespeople across the state and know how confusing it can be to sort out what benefits apply and who's responsible.

The Most Common Construction Accidents in Washington State

Construction consistently ranks among Washington's most hazardous industries. The table below summarizes the latest available data before we break down each hazard.

1. Falls from Heights

Falls are, by a wide margin, the single biggest driver of serious injury and death on Washington construction sites. L&I reports that more than 1,600 workers are hurt statewide in falls every year. They happen from roofs, scaffolding, ladders, unprotected floor openings, and elevated platforms.

Common causes:

• Missing or improperly anchored guardrails;
• Unsecured or poorly maintained harnesses;
• Rushed work near unprotected floor or roof openings;
• Unstable or damaged ladders.

Common injuries: spinal cord damage, traumatic brain injuries, and fractures requiring months of recovery.

2. Scaffolding Collapses

Scaffolding failures put every worker on or near the structure at risk at once, which is why they tend to produce multiple injuries rather than a single one.

Common causes:

• Overloading a platform beyond its rated capacity;
• Damaged, mismatched, or substandard components;
• Improper anchoring or bracing;
• Weather, wind, rain, or ice destabilizing an otherwise sound structure.

When a general contractor or scaffolding subcontractor cuts corners on inspection or assembly, the resulting collapse is often traceable to a specific, provable failure.

3. Equipment Malfunctions

Construction relies on forklifts, cranes, nail guns, table saws, augers, and dozens of other powered tools. Any one of them can cause a severe injury when it fails or is used improperly.

Common causes:

• Deferred maintenance;
• Missing safety guards;
• Manufacturing defects;
• Operators who weren't properly trained on the specific machine.

Common injuries: crush injuries, amputations, and lacerations. Because an equipment rental company, manufacturer, or maintenance contractor may share responsibility, these cases often involve more than a standard workers' comp claim.

4. Electrocutions

Contact with electricity remains one of construction's deadliest hazards. It's one of OSHA's "Focus Four" leading causes of construction fatalities. Construction workers also face this risk far more than most other trades: federal researchers have found they're roughly four times more likely to be electrocuted on the job than workers in all other industries combined.

Common causes:

• Overhead power lines
• Exposed or damaged wiring
• Faulty extension cords
• Improperly grounded equipment

Electricians and workers using power tools near wet conditions face elevated risk, but electrocution hazards touch nearly every trade on a job site. Even a non-fatal shock can cause burns, cardiac complications, and lasting nerve damage.

5. Struck-By and Caught-Between Accidents

Falling tools, swinging loads, reversing vehicles, and collapsing trenches all fall under this category. L&I's most recent fatality data shows this hazard is trending in the wrong direction, with statewide struck-by incidents more than doubling in 2024 and construction among the most affected industries.

Common causes:

• Falling or flying debris
• Swinging equipment or loads
• Reversing vehicles or machinery
• Trench or excavation collapses

Struck-by injuries range from bruises to fatal head trauma. Caught-between accidents tend to cause severe crush injuries, since there's often no way to brace for impact.

What to Do If You're Injured on a Construction Site

The moments and days after a construction accident matter, both for your recovery and for any claim you may eventually file:

1. Get medical attention right away, even if the injury seems minor. Some injuries, like internal trauma or nerve damage, aren't obvious immediately.
2. Report the accident to your supervisor or employer as soon as possible. Washington law requires prompt reporting to preserve your workers' comp rights.
3. Document the scene with photos of the hazard, your injury, and any equipment involved, if it's safe to do so.
4. Get contact information for witnesses who saw what happened.
5. Avoid giving a recorded statement to an insurance adjuster before speaking with an attorney.
6. Keep copies of medical records, pay stubs, and any correspondence related to the accident.

Workers' Comp Isn't Always the Whole Picture

Most injured construction workers in Washington will file a claim through L&I or a self-insured employer, which generally covers medical treatment and partial wage replacement regardless of fault. Washington law also generally prevents you from suing your own employer directly for a workplace injury, since workers' comp is the exclusive remedy in that relationship.

That doesn't mean workers' comp is the end of the story. On a construction site, multiple companies are usually present at once, and a separate third-party injury claim may be available in addition to your L&I benefits.

Common third-party scenarios on construction sites include:

• A subcontractor's negligence caused your injury, and they weren't your employer.
• Defective or poorly maintained equipment failed, pointing to a manufacturer or rental company.
• A general contractor failed to enforce basic site safety standards.
• A property owner ignored a known hazard unrelated to the construction work itself.

Sorting out liability on a multi-contractor job site can take an extensive investigation, which is where an experienced construction accident lawyer's involvement often makes the biggest difference.

Get Help After a Washington Construction Accident

A construction site injury can upend your income and your recovery at the same time. The skilled attorneys at Lehmbecker Law will use their advanced knowledge to investigate what caused your accident, guide you through your L&I claim, and pursue any negligent third party so you get every dollar of compensation you're entitled to. Contact us today for a free consultation. We work on a contingency basis, so there's no fee unless we recover for you.