Flooding is sometimes inevitable after a heavy rain storm, particularly when debris and silt collect and block the flow of water in storm sewers and drainage systems. If not fixed, the blockage will cause this excess run-off to linger, affecting both motorists and pedestrians. Thankfully, there is equipment specifically designed to provide relief from this kind of problem called vacuum trucks. Inlet - The inlet is an opening usually found on the side of the road. The inlet is grated in order to keep large debris from entering and blocking the pipes. Smaller debris that goes through the inlet grating is collected in the catch basin. Pipes - The pipes direct the run-off out of the city. The diameter of the pipes varies depending upon the volume of liquid collected. The smallest pipes are the ones directly connected to the drainage inlet. The pipes get larger as several smaller ones merge to compensate for the increased volume. Water run-off systems also have other features such as falls, stairways, balconies and pits for catching debris.Outlet - All the pipes, as well as the run-off, lead to massive outlets. In most cases, the rain water drains to natural bodies of water such as oceans, rivers, lakes, or canals, where it can be safely discharged.
Flooding is more than just an inconvenience to pedestrians and commuters. Submerged roads are dangerous to drive on since water reduces traction between the wheels and the road. The situation can become even more dangerous during the winter when melted snow can re-freeze into a layer of ice on the road which could cause vehicles to skid dangerously out of control.
Role of Storm Drains
Storm drains are conduit systems designed specifically to get rid of liquid run-off caused by precipitation and melting snow; they prevent rainstorms from flooding roads and the surrounding area. Storm sewers are an important infrastructure, especially in urban areas. Unlike rural areas where much of the rain is absorbed by the soil, urban locations and especially large cities have much of the ground covered in cement which does not absorb any liquid at all. Without a properly installed drainage system, rain water will simply collect and could result in flooding.
A storm system is a large infrastructure that runs beneath cities and is solely dedicated to removing this liquid run-off. The location of storm drains, as well as the size of the pipes used, are carefully planned to accommodate large volumes of water without overflowing.
A storm system has three major parts:
Despite the fact that cities have floodwater removal plans, flooding still occurs. There are two reasons for this: first, the volume of precipitation is too much for the drainage system to handle; and second, the catch basins on the drainage system are clogged with so much debris that they restrict the flow of water.
Vacuum Trucks Role
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