Design of Rectangular Weir (Sivakasi Lake)

Abstract

The study was undertaken to design a weir in sivakasi lake of Tamil nadu. The present details of the lake such as combined catchment, intercepted catchment of the lake, full tank level, maximum water level of the tank, bund level, ground level and details of the weir such as size of the weir, materials used for the construction of the weir were analysed. And we have collected the population in that area, rain fall data, flood ratio of that particular lake and total number of houses in that area, number of houses in upstream and number of houses in down stream of the lake. The cause of designing a weir is due to the damage in the existing weir and bunds of the lake so it cannot with stand the pressure of the water in heavy rain fall. To avoid the flood water entering in the residential areas near by the lake we have designed a weir. So that the water can be saved in the lake and there will be no flood occurs in due to the heavy rain fall.