Files

• Changing Climate and Surface and Ground

Date

January, 2024

Author(s)

• Professor Dr. Muhammed Alamgir

Abstract

Restoration of any river is indispensable to conserve and restore the surrounding environment. River restoration through dredging is one of the primary solutions for rehabilitation of rivers those get silted up causing adverse impacts on the state of the river channel and its morphology. Restoration of old channel now dead but once a flowing channel is a very complex tasks and need cautious attention regarding selection of its alignment, reexcavation volume and sustainability of dredge channel. Uses of modeling tools are very crucial for understanding the scenarios on future performance after rehabilitation and its sustainability. An in-depth study has been performed to restore the Old Madhumati River, which is situated in the southwest region of Bangladesh. Once it was a free-flowing river now became silted up causing serious environmental degradation in the surrounding area. Under this obstinately changing morphological condition of Old Madhumati River, the study included review, collection of time series satellite images, scenario development for cross-sections, velocity, setting the alignment of dredging, estimates of dredging using mathematical modeling which will authenticate sustainability. Careful investigation was conducted to examine whether the dredged canal needs supplementary measure to keep it hydraulically alive throughout the year or not including preliminary study on the environmental impacts.

Citation

Journal of Engineering Science, Volume 3 number 1, 2012, Faculty of Civil Engineering Khulna University of Engineering & Technology, P200.

Publisher

Khulna University of Engineering & Technology (KUET)

Rights Holder

Khulna University of Engineering & Technology (KUET), Khulna 9203, Bangladesh.

URI

https://knowledgehub.pksf.org.bd/collections/YjNZUG4zY2Fyb0dzd1RQQU5BUWx6dz09