Flood barrier
SPECIFIC TYPE OF FLOODGATE, DESIGNED TO PREVENT A STORM SURGE OR SPRING TIDE FROM FLOODING THE PROTECTED AREA BEHIND THE BARRIER
Storm surge barrier; Hurricane barrier; Surge barrier; Perimeter flood barriers; Perimeter flood barrier
A flood barrier, surge barrier or storm surge barrier is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier. A surge barrier is almost always part of a larger flood protection system consisting of floodwalls, levees (also known as dikes), and other constructions and natural geographical features.