Mrigi River Drainage Improvement Project


Location

Jamalpur District

 

Type of Project

Drainage Improvement

 

Period of Study

November, 1999 - January, 2000

 

Client

Bangladesh Water Development Board


Description

Mathematical Modelling study of the Mrigi River Drainage Improvement Project was conceived to understand the complex drainage system of the project area. The model considers the drainage system of the study area in a comprehensive way to simulate water level, discharge in the canal systems due to internal rainfall and inflow from external sources. The impact of any structural intervention on drainage, flood control and irrigation system can easily be evaluated from model results. Thus the model helps the planners and decision-makers to choose the right type and dimension of the structures for drainage improvement. Including most of the defined rivers/khals of the study area has developed mathematical model for the Mrigi River Drainage Improvement Project. The external boundary for the project model was taken from the existing North East Regional Model .The objective of the study is to understand the complex behaviour of rivers and khals in and around the Mrigi River Drainage Improvement Project and help the feasibility study team to select suitable intervention measures for improving drainage condition and flood control of this area.

The mathematical modelling study was designed to understand the drainage and flooding situation inside the project during pre monsoon, monsoon and post monsoon by comparing model results of existing situation and different improvement options. The definite output from the model are listed below:

  •  An updated one dimensional mathematical model for the North East Region with finer resolution in the Mrigi River Drainage Improvement Project area.

  • Digital Elevation Model (DEM) for the project.

  • Detailed mathematical model for the project, useful up to the level of feasibility study

  • Results of option studies for drainage and flood control in the project area.

  • Indicative siltation rate for the Mrigi River.