Things that you should do after a construction site accident are:
Get medical help for the victim right away; call 911 and administer first aid
Secure the scene to prevent further injuries
Report the accident and workplace injury to your employer; insist on a written report
Complete an incident report and get information about the workers' compensation system
Gather names of witnesses and contact information; ask them to make written statements
Preserve evidence, such as clothing and video
Take photographs of the accident scene
Follow up with medical care and the workers' compensation process
Speak with a construction accident attorney as soon as possible