Flood Protection barriers can be effectively used for flood control as in flood prone areas we can employ a welded mesh gabion box as a flood barrier. when pounded by heavy masses of water, the impact, instead of being taken instantaneously, is gradually absorbed. Again, flexibility offers distinct advantages in coastal defence or defences. Huge sea walls can be constructed with high speed using these gabions. Advantageous than other solutions in marine and river environment as they are inert to alkaline and acidic attack.
Flood Control walls are a quick and easy to build, that do not require a concrete footings. This gabion stone wall prevents erosion of the river bank, and incorporates a bench seat built into the wall to enjoy the river bank from. Because the gabions are porous, they are able to diffuse the rivers energy when in flood are protect the river bank from being eroded away. When you have cheap, low cost local stone, gabion erosion baskets allow the construction to be very inexpensive.
Gabion erosion systems are able to retain a variety of soil types, including clays, silty clays and sand, as well as gravels. All erosion control methods when carried out by qualified engineers including the design of gabion river bank protection, is based on a site inspection of the soil, and site contours, peak run off data, and expected rainfall into the river catchment, this allows the calculation of expected flood flows in the river, and peak river levels.
Gabion check dams are small barriers constructed of a series of gabion baskets bound together to form a flexible row that acts to slow down the water flow in drainage ditches or storm water runoff channels.
They are commonly used with moderate slopes up to 10% and positioned in series with a typical spacing of 25 -100 yds. apart. These dams are either constructed straight across the channel or in a crescent shape with its open end upstream. The crescent shape check dam is commonly used to allow a longer spillway than is possible with a straight one. At the same time it anchors and protects the ends of the dam. An offset equal to about one-sixth of the gully's width at the dam site will generally provide sufficient curvature.
Gabions are an excellent solution for culvert outlet pipe protection. When properly installed, they help to reduce the depth, velocity and energy of water discharging from the outlet pipe.
Gabions walls are constructed to protect the seacoast against the erosion due to water and waves. Gabions will withstand alternative tension and compression without losing structural passage of water throughout the structure. Also they are found to be more advantageous than other gabions in marine and river environment as they are inert to alkaline and acidic attack.