The video below shows Tennessee officials demolishing a bridge over I-65 last weekend. The demolition decision was taken after a gasoline tanker ran into the bridge on August 15^th and exploded.

Destruction pictures like this could be avoided in the near future and casualties could be reduced or even eliminated with a new promising technology currently under development. A new project launched and coordinated by the Geological Survey of India (GSI), with the participation of terrain research experts will aim in the development of an Early Warning System (EWS) for landslides, identifying the most hazardous sites and reducing casualties. 

Being along the Pacific "Ring of Fire", Costa Rica has been often hit by destructive earthquakes causing extensive damages and many casualties. The country's National Seismological Network (RSN) has been closely monitoring the seismic activity and has recently released a list with the 70 "most historic" earthquakes that rattled the country. A selection of old photos showing the destruction of some of the strongest quakes presented below!

Los Angeles city leaders and officials broke ground last Tuesday at LAX’s Terminal 1 to signify the start of a $508 million modernization project. The thirty year-old terminal is the busiest terminal at the airport as it handled 9.65 million travelers in 2013. In addition to renovating Terminal 1, LAX has also been upgrading other parts of the airport including the new $1.9 billion Tom Bradley International Airport, Terminal 6, and parts of the airfield to accommodate larger planes. The projects are expected to create 4,000 construction jobs as well as 2,000 new concession jobs at the airport.

In a controversial move last week, San Francisco placed warning signs on buildings that violate San Francisco’s seismic safety laws. The large signs, written in multiple languages and displaying drawings of destroyed buildings, were posted on and around buildings to notify potential occupants that the building’s owners have not retrofitted the structure. While many agree that something must be done to convince building owners to upgrade unsafe structures, some feel that publicly “shaming” the buildings and its owners is not the smartest way to achieve the city’s goal. Berkeley tried something similar to what San Francisco is doing back in 2005. They placed warning signs on at-risk buildings and required owners to send letters to their tenants about the building being in danger if an earthquake hit.  Of the 239 buildings targeted by Berkeley, 100 owners voluntarily retrofitted their structures while the city had to pass a law to get the other 139 buildings retrofitted. San Francisco is going further than any other California city has in the past to notify the public by placing larger signs on more buildings.

The Colorado Department of Trasportation is going to line the I-70 twin tunnels, near Idaho Springs with concrete to enhance the tunnels' strength and longevity. Watch the video below explaining the details of the project and see pictures of the unlined tunnel's interior!

The interactive timeline below shows how the London skyline has changed over the past 50 years. London's skyline has been changing rapidly, especially over the last 15 years with skyscarpers like the Walkie-Talkie, Heron Tower and the Shard being completed. There are currently over 200 new buildings over 20 stories tall proposed in London ensuring that the skyline will continue to change in the future.