The Coast Guard, along with Quincy, Boston and Massachusetts State police, set up a 1000-yard safety zone between Moon Island and Long Island on March 23rd. Shortly after, with a large burst of smoke, a 750-foot-long section of the Long Island Bridge, in Boston, was demolished. The demolition targeted three sections of the bridge, sections 12, 13 and 14 – each 250 feet long. The demolition, by Walsh Construction Co., is expected to cost $20.6 million and is to be completed by the end of April.
Ohio governor committed to rebuild the Buckeye Lake dam to adress the significant flooding risks associated with the aging embankment, which has been showing signs of decay during the past decades. The dam replacement will require lowering of the lake water level and is estimated to take five years to complete.
Winning designs of the Bristol Arena were announced this week! The £90 million project located next to Bristol Temple Meads railway station, in the Bristol Temple Quarter Enterprise Zone, is estimated to open by 2017.
Broad Sustainable Building, a construction company in China, recently built a 57-floor, 2-million-square-foot skyscraper in just 19 days. That is an average of three floors per day. The building has 19 10-meter-tall atriums, enough office space for 4000 people and 800 apartments. The structure is made up of prefabricated sections that reduced the use of concrete by 15,000 trucks, which translates into less dust released into the air.
The world’s population is rising and with it are food demands. Policymakers are targeting Africa’s wet savannas as expendable areas easily converted into cropland. A study out from Princeton University finds that such a conversion to farmland would come at a high environmental cost.
Constructed in 2006, just outside Kadonowaki, Japan, the Ishinomaki Red Cross Hospital stands as a monument to civil engineering. The five-story, 402-bed hospital operated at full capacity during and immediately after the magnitude 9.0 earthquake and subsequent tsunami that hit the east coast of Japan in 2011. Surrounding the building like a moat, the hospital’s base isolation system enabled its survival without even a broken window. The steel springs and rubber dampers of the isolation system, that support the hospital, reduced the horizontal displacement of the building to just 26 centimeters. Engineers, also, estimate that several more earthquakes of similar magnitude can be sustained before the base isolation springs need replacement. Japan’s long history with earthquakes has fostered a significant culture of seismic design and much of its infrastructure is useable after an event.
The two storey home in a Thai neighborhood for factory workers has a special feature that is not directly visible to the average eye. Hidden in the home's foundation is a system that allows it to float in case of extreme flooding events. This innovative floating system, developed in Thailand is a promising response to Thailand's high flooding frequency.