Retirement and Disability System, and for other purposes. The first major test of the trade centers structural integrity came on February 26, 1993, when a bomb with the destructive power equal to 2,200 pounds of TNT exploded in the parking garage of the second floor basement of the north tower. 9/11 - Timeline of eventsSource: hist, a timeline of the September 11th terrorist attacks. Numerous other buildings at the World Trade Center site in lower Manhattan were destroyed or badly damaged. Weekly Compilation of Presidential Documents. Remarks by the President to the nypd Command and Control Center Personnel, February 6, 2002 Homeland Security Presidential Directive 3: Homeland Security Advisory System, March 11, 2002 Executive Order 13260: Establishing the President's Homeland Security Advisory Council and Senior Advisory Committees for Homeland Security, March. In this way, the skin of the building would be strong enough that internal columns wouldnt be necessary to hold it together.
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Once hijacked, the attackers steered the plane towards the Pentagon where they slammed into the west side of the building, workplace to twenty four thousand people (Schmemann). Statement of Administration Policy on S 1510, Office of Management and Budget, October 11, 2001. Photo: By Petty Officer 2nd Class Patrick Kelley Public domain, via Wikimedia Commons. All in all, 1 million cubic yards of landfill had to be removed. At the end of construction, these cranes had to be disassembled and brought down by elevator. The days that followed saw a significant effect on world economic markets and international confidence. On September 11, 2001, the World Trade Center became the target of a massive terrorist attack that took the lives of nearly 3,000 people. Of Defense, Congressional Research Service and General Accounting Office reports, Dept. The north tower collapsed less than kettering university i didnt finish my thesis statement a half hour later, at 10:28.m. Background Documents Advisory Panel to Assess Domestic Response Capabilities for Terrorism Involving Weapons of Mass Destruction Also known as the Gilmore Commission, the panel's site, hosted by the Rand Corporation, includes the reports to Congress, minutes, and news releases. Instead of the traditional stacked glass-and-steel box construction of many New York skyscrapers, Yamasaki worked with structural engineers to come up with a revolutionary design: two hollow tubes, supported by closely spaced steel columns encased in aluminum. Department of Transportation's Federal Transit Administration (FTA) toward revamping lower Manhattan's transportation infrastructure damaged during the World Trade Center attack.