spillway chute and the hydraulic jump stilling basin at the end of the chute are rectangular in shape with a width of 80 ft. The incoming flow has a depth of 2.60 ft at a design discharge of 10,000 cfs. Within the basin are 20 baffle blocks that are each 3.0 ft high and 3.0 ft wide. Using an effective coefficient of drag of 0.6 for the baffle blocks, based on the upstream velocity and combined frontal area of the blocks

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.