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Most regulatory authorities in the United States that offer requirements for flood openings define two major classes of opening: [1] engineered, and non-engineered. The requirements for non-engineered openings are typically stricter, defining necessary characteristics for aspects ranging from overall size of each opening, to allowable screening or other coverage options, to number and ...
Jersey barriers on the road. A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic.It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision.
A traffic barricade [1] is a type of barricade used to control the flow of traffic or block access to an area, generally for safety purposes. Traditionally made of wood, or wood and steel, many now have structural members made wholly of plastic or composite materials , and may be fitted with flashing lights.
It was originally designed for use on beaches and marshes for erosion and flood control. [5] They were used in 2005 to reinforce levees around New Orleans in the weeks between Hurricane Katrina and Hurricane Rita. [6] During the June 2008 Midwest floods, 8,200 metres (9,000 yd) of HESCO barrier wall were shipped to Iowa. [7]
Barricades also include temporary traffic barricades designed with the goal of dissuading passage into a protected or hazardous area or large slabs of cement whose goal is to prevent forcible passage by a vehicle. Stripes on barricades and panel devices slope downward in the direction traffic must travel.
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 ...
Floodwalls are mainly used on locations where space is scarce, such as cities or where building levees or dikes (dykes) would interfere with other interests, such as existing buildings, historical architecture or commercial use of embankments. [clarification needed] Floodwalls are nowadays mainly constructed from pre-fabricated concrete elements.
Culvert with secure headwall in Bromsgrove, England Stone culvert in Haapsalu, Estonia Steel culvert with a plunge pool below A multiple culvert assembly in Italy Precast concrete box culvert Large box culvert on Rio Monterroso. A culvert is a structure that channels water past an obstacle or to a subterranean waterway.
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