Engineered anti erosion works along the Banks of Brahmaputra River in Sonitpur District, Assam

Erosion and flood are the two major problems of lower plain reach of Brahmaputra River and hence become a matter of concern due to its devastating impact on life and property. Many anti-erosion techniques are used as engineered solutions to the problems. This paper describes the case study where Geosynthetics materials and Gabions are used in erosion control and flood protection measures at three different reaches (Silamari, Biswanath-Panpur and Bhumuraguri-Borgaon) along the Brahmaputra River by construction of bank revetment with launching apron and raising & strengthening of embankment at places which are prone to floods. The project is located in the Sonitpur District of Assam from Brahmaputra CH: 282 km (Silamari) to 373 km (Borgaon). The Geosynthetics materials and Gabions tested for its strength and suitability standards are presented in this paper along with advantages of using Geosynthetics materials.