After Hurricane Katrina devastated New Orleans in 2005, its new flood infrastructure is tested by Hurricane Isaac almost exactly 7 years later.
Hurricane Katrina revisited
![New Orleans' Lower 9th Ward suffered the worst of Hurricane Katrina's winds and floods on August 29, 2005. A wall of water from the city's Industrial Canal rushed into the streets, killing dozens of people. (Andrea Booher/FEMA](https://gdb.voanews.com/9002e1d1-319a-4335-95b0-f0cc0a920d10_w1024_q10_s.jpg)
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New Orleans' Lower 9th Ward suffered the worst of Hurricane Katrina's winds and floods on August 29, 2005. A wall of water from the city's Industrial Canal rushed into the streets, killing dozens of people. (Andrea Booher/FEMA
![Tim SAR mengunjungi kereta penumpang Metro-North yang tergelincir di Bronx, New York, 1 Des., 2013. Dinas Pemadam Kebakaran New York menyatakan ada 130 petugas di tempat kejadian.](https://gdb.voanews.com/e3164428-e8ef-45f1-96bf-e5254cc8d9a2_w1024_q10_s.jpg)
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Tim SAR mengunjungi kereta penumpang Metro-North yang tergelincir di Bronx, New York, 1 Des., 2013. Dinas Pemadam Kebakaran New York menyatakan ada 130 petugas di tempat kejadian.
![Stray dog in New Orleans' Lower 9th Ward following Hurricane Katrina. (Andrea Booher/FEMA photo, Oct. 22, 2005)](https://gdb.voanews.com/e2b0d111-73a1-417b-8e43-b49b65cc4d89_w1024_q10_s.jpg)
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Stray dog in New Orleans' Lower 9th Ward following Hurricane Katrina. (Andrea Booher/FEMA photo, Oct. 22, 2005)
![In this Dec. 15, 2010 aerial photo, the Inner Harbor Navigation Canal (IHNC) Surge Barrier, constructed after Hurricane Katrina to prevent tidal surges from hurricanes from reaching New Orleans, is shown in St. Bernard Parish, La. AP Photo/Gerald Herber](https://gdb.voanews.com/b4414e3b-4089-4cab-bbcb-82987139a787_w1024_q10_s.jpg)
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In this Dec. 15, 2010 aerial photo, the Inner Harbor Navigation Canal (IHNC) Surge Barrier, constructed after Hurricane Katrina to prevent tidal surges from hurricanes from reaching New Orleans, is shown in St. Bernard Parish, La. AP Photo/Gerald Herber