International Good Practices of Embankment Upgrading with Limited Footprint Increase

Report (2023)

Authors

D.W. Poppema Hydraulic Structures and Flood Risk - CEG
M.Z. Voorendt Hydraulic Structures and Flood Risk - CEG
C. Mai Van Hydraulic Structures and Flood Risk - CEG
J.R. Moll Hydraulic Structures and Flood Risk - CEG
Sebastiaan N. Jonkman Hydraulic Structures and Flood Risk - CEG
P. van der Scheer Royal HaskoningDHV
M. van Ledden Worldbank
S. Kazi Worldbank
Research Group
Hydraulic Structures and Flood Risk (CEG) (TU Delft)
Copyright: © 2023 D.W. Poppema, M.Z. Voorendt, C. Mai Van, J.R. Moll, Sebastiaan N. Jonkman, P. van der Scheer, M. van Ledden, S. Kazi
More Info
expand_more

Published Date

2023

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Hydraulic Structures and Flood Risk

Abstract

This report investigates how embankments in Bangladesh could be upgraded with no or limited footprint increase. Many Bangladesh embankments need to be upgraded to improve flood protection. Traditionally, embankments are upgraded by adding more soil, heightening the crests while simultaneously widening the embankment maintain slope stability.
However, in many cases there is insufficient space for embankment widening. Case studies show that in Bangladesh, private assets often directly border embankments at both the landward and seaward side. Also land is scarce in general and the land directly adjacent to embankments is often in use by the communities. For traditional embankment heightening and widening, these buildings need to be (re)moved. So owners of private assets and land need to be identified and compensated and the land must be acquired leading additional project costs and delays.
This problem could be mitigated by using embankment upgrade techniques with a limited footprint increase. This requires knowledge of the available techniques and their suitability in the Bangladesh situation. Therefore, this study aims to provide an inventory of low-footprint embankment up-grade techniques used around the world, their (dis)advantages in terms of land use, risks, costs and O&M aspects, and their suit-ability for the situation in Bangladesh.