Abstract:
A project proposal entitled “Modelling and management of erosion and sedimentation processes in alluvial river using morphodynamic modelling” was submitted to National Hydrology Project (NHP) as Purpose Driven Study (PDS) in May 2019. National Institute of
Hydrology (NIH), Patna is the lead organization and Water Recourses Department (WRD),
Government of Bihar (GoB) is the partner organization in this PDS study. WRD nominated
officials from Flood Management Improvement Support Centre (FMISC), WRD GoB as
Principal Investigator (PI) and Co-PI (Annexure-I). The partner organization has the
responsibility of providing the logistic support during field visit, data support and
identification of a study site. Altogether 15 vulnerable sites (8 on Gandak river, 6 on Kosi
river and one on Ganga river) were intimated by FMISC (Annexure-II). For this study the site
one Gandak river from Kunwari village (near 47 km. of Saran Embankment) in u/s of Rewa
Ghat up to Baligaon (near 30 km. of Saran Embankment) in d/s of Rewa Ghat bridge was
finalized in consultation with FMISC. The main reason for selection of this stretch was its
vulnerability to bank erosion at several locations and many anti-erosion works have been
carried out in this stretch. However, the problem is not limited to this stretch and is widely
spread over the entire alluvial stretch of Gangetic plain, and therefore, the lesson learnt from
the specific study may be transferred to other reaches aslso.
