Massive Engineering Mistakes

What caused a Baltimore street to collapse onto a railroad? How did engineers fix London’s wobbly Millennium Footbridge? Experts and witnesses analyse what happened.

In San Francisco, California, residents in a luxury apartment block noticed their floor wasn't flat. Experts and witnesses analyse what happened to the building.

Once considered the eighth Wonder of the World, the Kinzua Bridge was the longest railway bridge in the world. But, a freak tornado destroyed it - why did it fall?

What epic engineering error caused flooding in Chicago? Plus, on the east coast of the UK, residents seek a solution for their houses that are falling onto the beach.

What architectural error ruined a Paris landmark? Plus, in Dallas, Texas, soaring temperatures and sunrays blaze and reflect into high-rise apartment building.

What Scottish landmark has a limited timespan with risky consequences? Also, in Liverpool on New Year's Eve a huge fire broke out in a carpark - what happened?

In Maryland, an aging and crumbling sewage system wreaks havoc in Baltimore. Experts and witnesses analyse what caused the major environmental and health problem.

A skyscraper in London risks killing pedestrians when large and heavy bolts from the support structure begin falling to the road below. And, why did a highway in Germany collapse?

America's first space station threatens to fall to earth. And, a miscalculation means strong winds could cause a New York skyscraper to topple over. What happened?

Why did an apartment block in Liverpool resist demolition? And, how did an engineering mix-up in Bristol derail a new bus route? Experts examine what happened.

In 1973, the Aon Center became the tallest marble-clad building in the world. Years later, Chicago's extreme weather would turn its beautiful exterior into a death-trap.

In 2015, workers began to renovate the Queen Juliana Bridge in the Netherlands. But the decision to use two cranes would have devastating consequences.

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In Florida, homes are swallowed whole as a giant sinkhole opens up. And in the Netherlands, why did a brand-new airport parking garage suddenly collapse?

An epic crane catastrophe wrecks a Milwaukee ballpark. A bridge in Washington State sinks like a ship, and a stadium roof collapses in Connecticut.

A bridge in Washington State plummets into a river. In the north of England, a television tower collapses. And, a building full of priceless relicts is completely destroyed.

A Chicago skyscraper hides a deadly flaw. A fuel storage depot goes up in a fiery inferno, and a championship stadium suffers a devastating collapse.

In Boston, MA, a deadly flaw brings traffic to a screeching halt. A river crossing collapses in Wales, and a dam collapse in Spain changes the course of history for one town.

Catastrophe strikes a major interstate in Connecticut. In Montreal an Olympic stadium turns into an epic disaster, and a huge levee fail floods a town in the Netherlands.

A revolutionary floating bridge in Washington sinks into the bottom of a lake. And, an engineering disaster in the Gulf of Mexico causes a global crisis.

In Montreal, a vital highway crossing collapses, with tragic consequences. And, an engineering catastrophe hits a legendary space mission more than 300,000km from earth.

Catastrophe strikes in the heart of Minnesota. In Denmark, a railway tragedy exposes a security breach that affects the whole of Europe.

In Kentucky, Corvettes fall into a pit. In Australia, a disaster occurs during the construction of a huge bridge. What caused these catastrophes?

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Catastrophe strikes one of America's most important intersections.

In Arizona, a fire destroys a vital river crossing.

In Sweden, a historic bridge is destroyed in seconds.

In Italy, a vital bridge comes crashing dawn.

In Texas a refinery explodes with deadly consequences.

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In Germany, tragedy strikes on one of the world's fastest passenger trains. Plus, a casino inferno in Las Vegas triggers a massive rescue mission.

A high-rise construction project in Virginia collapses. In the UK, a rural roadway is destroyed, and a ship takes down a bridge in Georgia, USA.

In Manhattan, tragedy strikes a midtown construction project. In Idaho, a catastrophic dam failure devastates a community.

In Pennsylvania, a vital bridge collapses to the ground. In Australia, tragedy strikes a packed commuter train heading into Sydney.

In Germany, an alpine ice rink roof collapses in seconds. In Tennessee, a toxic wave washes through a community. In Nebraska, a dam loses to nature.

In New Zealand, flooding devastates a community. In Texas, there's a fatal leak at a chemical plant. In Nebraska, disaster strikes a titanic TV tower.

In Nebraska, a massive explosion devastates a town. In Canada, catastrophe strikes a lakeside community. A bridge collapses in Tennessee.

In New York, a vast sinkhole swallows a van. In Puerto Rico, a massive blast rocks a community. In Glasgow, an explosion destroys a shopping arcade.

In Puerto Rico, an explosion rips through the capital city. In New Zealand, a bridge collapse sparks a desperate rescue mission.

In New Jersey, an inferno rages at the heart of a community. In New Zealand, a volcanic flood takes down a crucial rail bridge.