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The field data of flood flows for several streams were analyzed to determine the distribution of flow in the main channel and in the flood plains. The discharge carrying capacity of flood plains were found to vary from a few percent to more than 80 percent of the total flow. The carrying capacity of flood plains depends upon many factors including the nature of the flood plain and the main channel, and the flood frequency. In general, the carrying capacity of flood plains increases with the return period of the flood. When the return period of the flood is about 40 years or more, the flood plain and the main channel appear to behave as a single unit.

Laboratory tests were conducted to investigate the possibilities of increasing the energy loss and shortening the required stilling basin length for the Froude number range of 2.5 - 4.5. Data were collected for both the ordinary hydraulic jump and the forced hydraulic jump. Jumps were forced to form by the addition of appurtenances, such as baffle blocks and an end sill. A set of appurtenances and geometrical arrangements was found to perform satisfactorily. Comparison of the test data for the forced hydraulic jump with the data from an ordinary hydraulic jump for the same Froude number shows that the energy loss can be increased, the required downstream depth of water can be about 5% less than the sequent depth, and the jump can be formed in a much shorter basin.

Waves produced by pleasure crafts in any restricted or unrestricted waterway can be termed ..boat-generated waves... With the ever increasing demand and utilization of surface waters for recreational use, the waves generated by pleasure crafts can cause significant erosion damage to the banks if the waterway shoe lacks natural or artificial protection.