Guangdong U-Gutter Manufacturer _ Price Per Meter _ Construction Plan [Dongguan Songshulin Environmental Protection Building Materials Co., Ltd.] The U-shaped drainage channel is commonly used as the roadside gutter or as the drainage outlet for road surface water, capable of rapidly draining residual water on the slope, preventing the occurrence of slope collapse due to waterlogging, such as landslides and mudflows. Its main composition includes the guide embankment, the rapid flow embankment, and the constriction embankment, with the guide embankment's role being to improve the flow direction of mudflows and the flow velocity. The primary function of the U-shaped drainage channel is to improve flow velocity and prevent overflow. Generally, the guide embankment and the rapid flow embankment are combined to form a drainage and guidance channel, improving the flow potential and direction of mudflows over the alluvial fan. Typically, the U-shaped drainage channel molds are built on both sides of the broken road to drain water and to slow down the flow velocity, providing protection for highways.