The slide of the Sellwood Bridge truss span ended at about 9:30 p.m. on January 19, 2013, after the span completed its journey north to set up the detour bridge. The western end of the span travelled 66 feet while the eastern end moved 33 feet, due to the new alignment. The contractor team then lowered the span onto the detour bridge bearings.
One day all be in driverless cars. But the people who think about
such things for a living are seriously convinced this will happen. The technology is pretty much already there
Generating energy when skyscrapers are being demolished, using a method environmentally safer and more
energy-efficient. Much like how hybrid cars
generate energy when their brakes are applied, the cranes can do the
same when lowering debris inside the building. The power they make can
be used to run lights and other equipment:
