FEMA's WTC Building Performance Study

Mirror of the PDFs Comprising FEMA's 2002 Report

In May of 2002, the Federal Emergency Management Agency published its World Trade Center Building Performance Study -- the product of an investigation by volunteers from the American Society of Civil Engineers. FEMA has since reorganized its website, making it difficult to locate the original documents. Although the entire report is still available at FEMA's website here, we provide this mirror as a permanent archive for the documents.

The components of FEMA's report are PDFs, many of them quite large. Most of these chapters and appendices are available in the form of much smaller HTML documents, with comments, on this mirror.

• Title Page, Report Credits, and Table of Contents(0.69MB PDF)
• Executive Summary(0.08MB PDF)
• Chapter 1 Introduction(3.8MB PDF)
• Chapter 2 WTC 1 and WTC 2(5.3MB PDF)
• Chapter 3 WTC 3(2.5MB PDF)
• Chapter 4 WTC 4, 5, and 6(3.5MB PDF)
• Chapter 5 WTC 7(3.5MB PDF)
• Chapter 6 Bankers Trust Building(1.9MB PDF)
• Chapter 7 Peripheral Buildings(3.5MB PDF)
• Chapter 8 Observations, Findings, and Recommendations(0.13MB PDF)
• Appendix A Overview of Fire Protection in Buildings(0.81MB PDF)
• Appendix B Structural Steel and Steel Connections(0.81MB PDF)
• Appendix C Limited Metallurgical Examination(2.1MB PDF)
• Appendix D WTC Steel Data Collection(2.3MB PDF)
• Appendix E Aircraft Information(0.55MB PDF)
• Appendix F Structural Engineers Emergency Response Plan(0.43MB PDF)
• Appendix G Acknowlegments(0.08MB PDF)
• Appendix H Acronyms and Abbreviations(0.04MB PDF)
• Appendix I Metric Conversions(0.10MP PDF)