APPLICATION OF ROM SCALE FOR ESTIMATING BANK EROSION VULNERABLE AREAS IN KAMRUP DISTRICT, ASSAM

The paper presents an overview of bank erosion which is a very devastating and recurring hazard in southern part of Kamrup District. For application of anti-erosive measures, it is necessary to spot the locations vulnerable to bank erosion. Many methodologies are available to predict the strength and weaknesses of river bank against erosion. The El ROM equation is one such established methodology to assess the extent of erosion on the basis of soil composition. In this work the validity of this methodology is checked in the southern tributaries of the river Brahmaputra namely, Kulsi, Boko, Singra and Singhua. It was observed that the erodibility factor of the soil of the various sample locations have high composition of sand and silt which are highly susceptible to erosion. After analyzing the result, it has come to light that this method gives very much acceptable results in identifying the highly erosion prone areas. Since our main concern is the proper identification of erosion hazard locations, it can be finally concluded that this El ROM equation can be effectively and widely used to identify the risky and erosion vulnerable locations for proper implementation of anti-erosion measures.