Abstract
Kokrajhar town is the headquarter of the Kokrajhar district as well as the headquarter of Bodoland Territorial Region (BTR) of Assam. BTR situated in the foothills of Bhutan and the northern part of the region faces common problems like flash floods, erosion, and crisis of drinking water. Many areas in Kokrajhar town submerge during the month of July–August every year. Prevention of urban flooding in Kokrajhar areas has become an important issue due to the hydrological impact on urban development. In this study, the author tried to investigate the causes behind the flood in the Kokrajhar town every year. Also, sustainable measures for flood mitigation in these areas have been chalked up. By physical survey, it is found that the existing drainage system of the Kokrajhar town is under construction and poorly maintained which led to the accumulation of stormwater or waterlogging. At present, the outfall points of the existing drains are on the Gourang River and the Tarang River through a major canal. Various hydrological factors are analyzed by ArcGIS. The stormwater drainage design works are proposed to be implemented in phases from the intermediate to future design period. A proposal for a drainage network has been made where there is no land available for constructing surface drainage. By monitoring the hydrological impact, the flow capacity of the existing drainage system is analyzed and compared with the proposed design drainage system.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Babu R, Tejwani KG, Agarwal MC, Bhushan LS (1979) Rainfall-intensity duration return period equations and nomographs of India
Central Public Health and Environmental Engineering Organisation (CPHEEO) manual, Government of India (2019) Manual on storm water drainage systems, vol 1
Goyari P (2005) Flood damages and sustainability of agriculture in Assam. Econ Polit Wkly, 2723–2729
Kirpich ZP (1940) Time of concentration of small agricultural watersheds. J Civ Eng 10(6):362
Subramanya K (2009) Flow in open channels. Tata McGraw-Hill Education
Subramanya K (2013) Engineering hydrology, 4e. Tata McGraw-Hill Education
Tripathi P (2015) Flood disaster in India: an analysis of trend and preparedness. Interdisc J Contemp Res 2(4):91–98
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Basumatary, S., Maji, S., Swargiary, D. (2024). A Sustainable Approach for Flood Mitigation in Kokrajhar, Assam. In: Timbadiya, P.V., Patel, P.L., Singh, V.P., Manekar, V.L. (eds) Flood Forecasting and Hydraulic Structures. HYDRO 2021. Lecture Notes in Civil Engineering, vol 340. Springer, Singapore. https://doi.org/10.1007/978-981-99-1890-4_15
Download citation
DOI: https://doi.org/10.1007/978-981-99-1890-4_15
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-1889-8
Online ISBN: 978-981-99-1890-4
eBook Packages: EngineeringEngineering (R0)