Effect of barrages on water level in estuaries

Abstract

<span style="font-size:11.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-bidi-font-family:mangal;="" mso-ansi-language:en-in;mso-fareast-language:en-us;mso-bidi-language:hi"="">Barrage is to utilize the fresh water on the u/s side of barrage and also to prevent the mixing of saline water during non-monsoon by fully closing the gates. During the monsoon season, the salinity of the water in Valvanta River becomes very low of about less than 5 ppt due to the predominant effect of River discharges. These types of studies are very vital for the water harnessing projects particularly on Western Ghats where the short estuaries drain into the sea without the water being utilized much. In the present study, is an attempt to predict the changes in the hydrodynamic conditions in the downstream side of barrage at Virdi by using the 1-D model HEC – RAS for different operational and tidal conditions<span style="font-size:11.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-bidi-font-family:mangal;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="">.</span></span>