St. Francis Dam Failure<br />Concrete gravity arch dam near Los Angeles, CA<br />Failed on March 12, 1928<br />Resulted in the death of more than 450 people<br />Cause: It was built on a fault line in a weak geological area unable to support the dam <br />
Big Dig Ceiling Collapse<br />July 10, 2006<br />A concrete ceiling panel weighing 3 tons fell in the Fort Point Channel Tunnel in Boston<br />The panel fell on a car, killing the passenger and injuring the driver<br />Cause: The bolts used were too short and the epoxy used was not up to standards<br />
I-35 Bridge Collapse<br />Minneapolis, Minnesota over the Mississippi River<br />Collapsed on August 1, 2007 during the evening rush hour<br />Resulted in the death of 13 people and injured 145<br />Cause: Undersized gusset plates and increased deadweight due to construction error<br />
New orleans levee Failures<br />August 29, 2005 after Hurricane Katrina<br />28 failures reported in the first 24 hours and over 50 in the following days<br />85% of New Orleans was flooded<br />Cause: Overtopping of levees, undermining of flood wall foundations, and soil giving way. <br />
Charles de gaulle roof collapse<br />May 23, 2004 at Charles De Gaulle Airport in Paris, France<br />A portion of Terminal 2E’s ceiling collapsed<br />Resulted in the death of 4 people<br />Cause: The concrete vaulted ceilings were pierced by metallic pillars and the design had little margin for error to reduce costs<br />
Tropicana Parking Garage collapse<br />October 30, 2003 at the Tropicana Casino in Atlantic City<br />4 construction workers were killed and 21 others were injured<br />Cause: The concrete floors were not allowed to cure properly before temporary supports were removed and additional floors built<br />
Tacoma Narrows Bridge Collapse<br />November 7, 1940 in Washington State<br />Cause: Aeroelastic flutter caused by 42 mph winds. The wind matched the resonance frequency of the bridge causing the main span to collapse.<br />
Big Blue crane collapse<br />July 14, 1999<br />Occurred during the construction of Miller Park in Milwaukee<br />3 people were killed as a result<br />One of the most serious heavylift crane accidents<br />Cause: The effect of side winds was not calculated for the 450 ton load <br />
Sunshine Skyway bridge disaster<br />May 9, 1980<br />The southbound span of the original bridge was destroyed<br />Resulted in the death of 35 people<br />Cause: The freighter MV Summit Venture collided with a support column sending 1200 feet of bridge into Tampa Bay<br />
Seongsu Bridge Collapse<br />October 21, 1994<br />32 people died and 17 injured<br />A concrete slab fell from the bridge when the suspension structure failed<br />Cause: Improper welding of the steel trusses of the suspension structure beneath the roadway<br />
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