River Bank Instability Detection and Monitoring Assessment

Document Type : Original Article

Authors

School of Civil and Water Resource Engineering, Woldia Institute of Technology, Woldia University, Ethiopia.

10.22044/jhwe.2025.15681.1052

Abstract

One principal cause of river bank collapse is the removal of more sediment from stream banks than the system can replenish. This study aims to assess river bank erosion rate and erosion monitoring assessment for about 3 km of the Shelie River. The primary data (more than 20 River Bank and 20 bed materials, 104 river cross-sections were collected using standard surveying equipment. Sieve and hydrometer analysis were implemented. Secondary (metrological) data were collected from an Ethiopian national metrological agency. HEC-RAS model was used to compute the water surface profile and discharge-stage analysis. Additionally, BSTEM model was used to depict river bank migration rate and its stability analysis. BSTEM model result showed that left river banks are retreating laterally on average 0.012 m/hr for considered reach, and overall safety factor is greater than unity. Further, steady state flow simulation results confirmed that conveyance capacity of the considered reach is not enough to carry 50-year return period design discharge and flood inundation raises a maximum of 1.2 m from normal flood level and extends 20 m laterally.

Keywords

References

Alam, M. S., & Singh, A. (2021). Planform dynamics of Kankai River using GIS and remote sensing. Journal of Water Engineering and Management, 2(2), 48-60.
Arora, D. (2003). Soil mechanics and foundation engineering (6th ed.). Standard Publishers Distributors.
Dewedar, O. M., Mehanna, H. M., & El-shafie, A. F. (2019). Validation of winsrfr for some hydraulic parameters of furrow irrigation in Egypt. Misr Journal of Agricultural Engineering, 36(1), 2108-2118.
Fubelli, G., Guida, D., Cestari, A., & Dramis, F. (2013). Landslide hazard and risk in the Dessie Town area (Ethiopia). Journal of African Earth Sciences, 85, 110-125.
Hasan, I., Dey, J., Munna, M. R., Preya, A., Nisanur, T. B., Memy, M. J., Zihan, M., & Zeba, S. (2024). Morphological changes of river bank erosion and channel shifting assessment on Arial Khan River of Bangladesh using Landsat satellite time series images. Progress in Disaster Science, 24, 100381.
Hasan, J., Zaman, A. U., & Faridatul, M. I. (2024). Prediction of dynamics of riverbank erosion: A tale of the riverine town Chandpur Sadar. Heliyon, 10(15), e35274.
Hekal, N. (2018). Evaluation of the equilibrium of the River Nile morphological changes throughout "Assuit-Delta Barrages" reach. Water Science, 32(2), 230-240.
Joshi, N., Kalra, A., & Lamichhane, G. R. (2019). Application of HEC-RAS to study the sediment transport characteristics of Maumee River in Ohio. Journal of Hydrologic Engineering, 24(5), 04019012.
Kayyun, T. S., & Dagher, D. H. (2018). Potential sediment within a reach in Tigris River. International Journal of Hydraulic Engineering, 7(2), 22-32.
Knox, R. L., & Latrubesse, E. M. (2016). A geomorphic approach to the analysis of bedload and bed morphology of the Lower Mississippi River near the Old River Control Structure. Geomorphology, 268, 35-47.
Koehnken, L. (2018). Impacts of sand mining on ecosystem structure, process & biodiversity in rivers. World Wildlife Fund.
Mondal, T., & Tripathy, B. (2020). River bank erosion and environmental degradation. International Journal of Environmental Science and Technology, 17(8), 3125-3136.
Sholtes, J., & April, C. (2013). River bank protection: Bank degradation—Cause and effect. Journal of Hydraulic Engineering, 139(5), 1-20.
Simon, A., Pollen-Bankhead, N., & Thomas, R. E. (2011). Development and application of a deterministic bank stability and toe erosion model for stream restoration. In Stream Restoration in Dynamic Fluvial Systems (pp. 453-474). American Geophysical Union.
Srinivas, P., Sarala, C., & Chowdary, P. P. (2007). Integrated watershed management using remote sensing and GIS techniques. Nature Environment and Pollution Technology, 6(3), 463-470.
U.S. Army Corps of Engineers. (2016). HEC-RAS river analysis system user's manual version 5.0. Hydrologic Engineering Center.
Wynn, T. M., Mostaghimi, S., & Alphin, E. F. (2004). The effects of vegetation on stream bank erosion. In ASAE Annual International Meeting (pp. 2935-2947). American Society of Agricultural Engineers.
Yan, C., Waseem, M., Soomro, S., Xia, H., & Qin, Y. (2025). Predicting possible bank erosion and bed incision in the Zhengzhou Reach of the Yellow River with hydrodynamic modeling. Journal of Hydrology, 16(1), 125-138.
Journal of Hydraulic and Water Engineering
Volume 2, Issue 2
January 2025
Pages 19-35

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