Canal Construction Equipment


Canal lining is the process of reducing seepage of irrigation water by adding an impermeable layer to the edges of the canal. Seepage can result in losses of 30 to 50 % of irrigation water from canals, so lining can make irrigation systems more efficient. Canal linings are also used to prevent weed growth, which can spread throughout an irrigation system and reduce water flow. Lining a canal can also prevent waterlogging in the lower parts of the canal. By making a canal less permeable, water velocity is enhanced, resulting in greater overall flow. Increased velocity also reduces the amount of evaporation and siltation that occurs, making the canal more efficient.