From the Colossus of Rhodes and Egypt's pyramids to the Hoover Dam and the Space Shuttle, mankind has celebrated the work of engineers. But what happens when their calculations prove wrong? From Hammurabi, who passed the first building laws, to today's potential disasters that can wipe out a whole city, we review engineering mistakes.

Throughout history the same builders and engineers that paved man's path out of the caves and into the modern world also caused some of mankind's worst disasters. Often a huge calamity is traced back to a tiny cause, insignificant in itself, but triggering a domino effect. We'll revisit notable disasters and search for probable causes.

A series of construction errors causes a devastating flood that brings Chicago to a standstill. A deadly accident traps hundreds in a smoke-filled Alpine tunnel, with no ventilation. Three boilers explode on a Mississippi riverboat resulting in thousands of deaths and earning the disaster the title of the worst in maritime history. Two buildings, halfway around the world from each other, collapse from the same type of shoddy construction methods--14 years apart. And a cockpit warning system malfunctions, causing a fiery, fatal crash before the jetliner ever takes off. We interview design and construction experts as we investigate what went wrong. And we talk with rescue personnel, eyewitnesses, and victims as we visit the tragedies' sites to see what improvements have been implemented to insure against these kinds of disasters.

Chaos in Guadalajara, Mexico, when the city streets explode; an airplane crash outside of Paris that ranks as one of the worst in history; two mining dams in Italy collapse engulfing a village in a tidal wave of sludge; a generation of children in a small Texas town are entombed in the rubble of their school; an oil tanker runs aground off the coast of England and introduces the world to the devastation of the first super spill... Engineering Disasters 16 delves into the shocking chain of events leading up to each of these horrific catastrophes and examines resulting technological improvements designed to prevent similar tragedies in the future.

It's another chapter of complex, deadly, and controversial engineering failures, using 3-D animation, forensic engineering experts, and footage of the actual disasters to understand what went wrong, and how disaster has led to improvement. In Sun Valley, California, weeks of record rain turn a crack in the middle of a street into a 200-foot-long sinkhole. Months later, rain led to the Laguna Beach, California landslide, which destroyed 11 homes and caused millions in damage. On May 23, 2004, four people were killed when the roof of the new Terminal 2E at Charles de Gaulle International Airport in Paris collapses. Other disasters: the 1931 crash of Fokker F-10 passenger airplane with coach Knute Rockne aboard; the sinking of the coal ship Marine Electric off the coast of Virginia; and the blinding reflection of the new Walt Disney Concert Hall in Los Angeles.

We look at a 1999 tragedy, when three ironworkers plunged 200 feet when the basket in which they were working was struck by debris during construction of Milwaukee's Brewers Baseball Stadium. Next, we travel to a deadly explosion in China's Sunjiwan coal mine--antiquated equipment, minimal safety standards, and a rush to overproduce left the mines susceptible to fires, floods, and explosions. From the 1920s through the `50s, US shoe stores featured the fluoroscope. Based on an early Edison machine, the fluoroscope took x-rays to determine a customer's size--while emitting high doses of radiation. In California, we visit the Salton Sea, an unnatural body of water with no drainage that grows more salty and less hospitable to life daily. In the 1950s Soviet leaders embarked on a massive irrigation project that diverted water from the Aral Sea. Over time, the coastline receded 100 miles, killing off many species of fish and a once thriving fishing industry.

They are catastrophic failures with deadly consequences. Caused by a single spark or a massive collapse, these disasters reveal one thing--the danger inherent in our most common industries. From a massive oil spill to a refinery blaze to a downed plane, find out what went wrong... and how to prevent the next engineering disaster.

From the Colossus of Rhodes and Egypt's pyramids to the Hoover Dam and the Space Shuttle, mankind has celebrated the work of engineers. But what happens when their calculations prove wrong? From Hammurabi, who passed the first building laws, to today's potential disasters that can wipe out a whole city, we review engineering mistakes.

Throughout history the same builders and engineers that paved man's path out of the caves and into the modern world also caused some of mankind's worst disasters. Often a huge calamity is traced back to a tiny cause, insignificant in itself, but triggering a domino effect. We'll revisit notable disasters and search for probable causes.

A series of construction errors causes a devastating flood that brings Chicago to a standstill. A deadly accident traps hundreds in a smoke-filled Alpine tunnel, with no ventilation. Three boilers explode on a Mississippi riverboat resulting in thousands of deaths and earning the disaster the title of the worst in maritime history. Two buildings, halfway around the world from each other, collapse from the same type of shoddy construction methods--14 years apart. And a cockpit warning system malfunctions, causing a fiery, fatal crash before the jetliner ever takes off. We interview design and construction experts as we investigate what went wrong. And we talk with rescue personnel, eyewitnesses, and victims as we visit the tragedies' sites to see what improvements have been implemented to insure against these kinds of disasters.

Chaos in Guadalajara, Mexico, when the city streets explode; an airplane crash outside of Paris that ranks as one of the worst in history; two mining dams in Italy collapse engulfing a village in a tidal wave of sludge; a generation of children in a small Texas town are entombed in the rubble of their school; an oil tanker runs aground off the coast of England and introduces the world to the devastation of the first super spill... Engineering Disasters 16 delves into the shocking chain of events leading up to each of these horrific catastrophes and examines resulting technological improvements designed to prevent similar tragedies in the future.

It's another chapter of complex, deadly, and controversial engineering failures, using 3-D animation, forensic engineering experts, and footage of the actual disasters to understand what went wrong, and how disaster has led to improvement. In Sun Valley, California, weeks of record rain turn a crack in the middle of a street into a 200-foot-long sinkhole. Months later, rain led to the Laguna Beach, California landslide, which destroyed 11 homes and caused millions in damage. On May 23, 2004, four people were killed when the roof of the new Terminal 2E at Charles de Gaulle International Airport in Paris collapses. Other disasters: the 1931 crash of Fokker F-10 passenger airplane with coach Knute Rockne aboard; the sinking of the coal ship Marine Electric off the coast of Virginia; and the blinding reflection of the new Walt Disney Concert Hall in Los Angeles.

We look at a 1999 tragedy, when three ironworkers plunged 200 feet when the basket in which they were working was struck by debris during construction of Milwaukee's Brewers Baseball Stadium. Next, we travel to a deadly explosion in China's Sunjiwan coal mine--antiquated equipment, minimal safety standards, and a rush to overproduce left the mines susceptible to fires, floods, and explosions. From the 1920s through the `50s, US shoe stores featured the fluoroscope. Based on an early Edison machine, the fluoroscope took x-rays to determine a customer's size--while emitting high doses of radiation. In California, we visit the Salton Sea, an unnatural body of water with no drainage that grows more salty and less hospitable to life daily. In the 1950s Soviet leaders embarked on a massive irrigation project that diverted water from the Aral Sea. Over time, the coastline receded 100 miles, killing off many species of fish and a once thriving fishing industry.

They are catastrophic failures with deadly consequences. Caused by a single spark or a massive collapse, these disasters reveal one thing--the danger inherent in our most common industries. From a massive oil spill to a refinery blaze to a downed plane, find out what went wrong... and how to prevent the next engineering disaster.

From the Colossus of Rhodes and Egypt's pyramids to the Hoover Dam and the Space Shuttle, mankind has celebrated the work of engineers. But what happens when their calculations prove wrong? From Hammurabi, who passed the first building laws, to today's potential disasters that can wipe out a whole city, we review engineering mistakes.

Throughout history the same builders and engineers that paved man's path out of the caves and into the modern world also caused some of mankind's worst disasters. Often a huge calamity is traced back to a tiny cause, insignificant in itself, but triggering a domino effect. We'll revisit notable disasters and search for probable causes.

A series of construction errors causes a devastating flood that brings Chicago to a standstill. A deadly accident traps hundreds in a smoke-filled Alpine tunnel, with no ventilation. Three boilers explode on a Mississippi riverboat resulting in thousands of deaths and earning the disaster the title of the worst in maritime history. Two buildings, halfway around the world from each other, collapse from the same type of shoddy construction methods--14 years apart. And a cockpit warning system malfunctions, causing a fiery, fatal crash before the jetliner ever takes off. We interview design and construction experts as we investigate what went wrong. And we talk with rescue personnel, eyewitnesses, and victims as we visit the tragedies' sites to see what improvements have been implemented to insure against these kinds of disasters.

Chaos in Guadalajara, Mexico, when the city streets explode; an airplane crash outside of Paris that ranks as one of the worst in history; two mining dams in Italy collapse engulfing a village in a tidal wave of sludge; a generation of children in a small Texas town are entombed in the rubble of their school; an oil tanker runs aground off the coast of England and introduces the world to the devastation of the first super spill... Engineering Disasters 16 delves into the shocking chain of events leading up to each of these horrific catastrophes and examines resulting technological improvements designed to prevent similar tragedies in the future.

It's another chapter of complex, deadly, and controversial engineering failures, using 3-D animation, forensic engineering experts, and footage of the actual disasters to understand what went wrong, and how disaster has led to improvement. In Sun Valley, California, weeks of record rain turn a crack in the middle of a street into a 200-foot-long sinkhole. Months later, rain led to the Laguna Beach, California landslide, which destroyed 11 homes and caused millions in damage. On May 23, 2004, four people were killed when the roof of the new Terminal 2E at Charles de Gaulle International Airport in Paris collapses. Other disasters: the 1931 crash of Fokker F-10 passenger airplane with coach Knute Rockne aboard; the sinking of the coal ship Marine Electric off the coast of Virginia; and the blinding reflection of the new Walt Disney Concert Hall in Los Angeles.

We look at a 1999 tragedy, when three ironworkers plunged 200 feet when the basket in which they were working was struck by debris during construction of Milwaukee's Brewers Baseball Stadium. Next, we travel to a deadly explosion in China's Sunjiwan coal mine--antiquated equipment, minimal safety standards, and a rush to overproduce left the mines susceptible to fires, floods, and explosions. From the 1920s through the `50s, US shoe stores featured the fluoroscope. Based on an early Edison machine, the fluoroscope took x-rays to determine a customer's size--while emitting high doses of radiation. In California, we visit the Salton Sea, an unnatural body of water with no drainage that grows more salty and less hospitable to life daily. In the 1950s Soviet leaders embarked on a massive irrigation project that diverted water from the Aral Sea. Over time, the coastline receded 100 miles, killing off many species of fish and a once thriving fishing industry.

They are catastrophic failures with deadly consequences. Caused by a single spark or a massive collapse, these disasters reveal one thing--the danger inherent in our most common industries. From a massive oil spill to a refinery blaze to a downed plane, find out what went wrong... and how to prevent the next engineering disaster.