SYDNEY HARBOUR BRIDGE CONSTRUCTION (Time-Lapse) At 10pm on August 19, 1930, the two halves of the Sydney Harbour Bridge arch were joined for the first time — five years after construction started. The joining of the arches was a culmination of a 10-day effort in which "the two sections were gradually lowered by the releasing of the huge cables until the pilot pins on the south arm fitted into the sockets on the north side" — a process complicated by temperature changes. After that, it took only

This week marks 14 years since Hurricane Katrina surged through South Mississippi, causing more than $1 billion in damage to the state's transportation infrastructure. Watch a time-lapse video during the construction of the new Biloxi Bay Bridge and remember to be prepared for the next storm. Plan your hurricane evacuation route at GoMDOT.com/hurricanes. #hurricanestrong💪 | Mississippi Department of Transportation