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This webpage provides original investigations of collapses and other incidents conducted by the Directorate of Construction, Occupational Safety and Health Administration (OSHA). Many of these incidents resulted in one or more worker fatalities, and most of them resulted in multi-million dollar property loss, lawsuits, or settlements. Each investigation was performed at the request of an OSHA field office or State Plan OSHA as part of an enforcement inspection. Due to the nature of investigations of construction collapses and other incidents, these reports may contain professional opinions of the investigating engineer, opinions of incident root cause, and factual data and findings.

Our goal is to help employers, workers, construction engineers, project managers, and regulatory bodies identify problems in construction design, project management, and management of field engineering changes. Hopefully, this information will help reduce future incidents, fatalities, and serious injuries.

Only selected reports are posted at this website. Some of the Photographs, schematics, computations, tables, figures and other non-text items have been removed from the posted versions and are not displayed. The text of each report is otherwise identical with the original document. The original document is a part of the OSHA case file and is maintained in the appropriate Area Office or State Plan.

For a complete version of any of the reports, contact the Directorate of Construction at (202) 693-2020.
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*Accessibility Assistance: Contact OSHA's Directorate of Construction at (202) 693-2020 for assistance accessing PDF materials.

All other documents, that are not PDF materials or formatted for the web, are available as Microsoft Office® formats and videos and are noted accordingly. If additional assistance is needed with reading, reviewing or accessing these documents or any figures and illustrations, please also contact OSHA's Directorate of Construction at (202) 693-2020.

**eBooks - EPUB is the most common format for e-Books. If you use a Sony Reader, a Nook, or an iPad you can download the EPUB file format. If you use a Kindle, you can download the MOBI file format.

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