Using HEC-RAS 1D for Flood Hazard Estimation For Building Construction in the Upstream of the AL Kut Barrage
DOI:
https://doi.org/10.31185/wjes.Vol13.Iss2.681Keywords:
HEC-RAS1, Prediction of floods, Hydrostatic Module, Impact of structures on the river basin,Abstract
The construction of buildings and recreational facilities in urban river basins is a well-documented problem that is having a devastating impact on urban infrastructure and human lives due to the increased frequency and severity of extreme rainfall and flooding.The likelihood of flooding cannot be eliminated, although it can be mitigated to some extent.Consequently, future flood control initiatives must priorities integrated strategies that account for both risk uncertainty and flood projections. In order to assess the potential harm, it is crucial to develop a solid approach for flood modelling and mapping.The goal of this study was to develop a flood projection zone by integrating hydrological models with geographic information systems. at the mouth and mouth of the Tigris River at Kut in central Iraq, at the front and rear of the dam.This was accomplished by making use of the hydrological models HEC-GeoRAS and HEC-RAS.locate areas that are at risk of flooding due to varying flow rates.To generate the DEM, a high-resolution topographic scan of the intended area—including the front and rear of the embankment-was employed.The dam was constructed using 6-kilometer-long front and 12-kilometer-long rear cross sections. In order to ascertain the depths of the terrain and its variations, GIS technology was employed.Several areas in the study area experienced flooding.A number of drainages were used to validate the model calibration, and the suitable Mannick coefficient for the area was determined by utilising statistical estimations (NSE, RMSE, MAE). This production quantity corresponds to a maximum flood depth of 17.5 meters.Based on the findings from the analysis using HEC-RAS, it is clear that structures situated in river basins have a significant influence, and a discharge of 2250 m3/s might cause flooding
References
[1] T. W. Mahdi and A. N. Hillo, "Flood control by weir design using HEC-RAS model: The case of Al-Musandaq escape," in IOP Conference Series: Earth and Environmental Science, 2021, vol. 877, no. 1, p. 012025: IOP Publishing.
[2] G. YS and S. Gebre," Flood Hazard Assessment and Mapping of Flood Inundation Area of the Awash River Basin in Ethiopia using GIS and HEC-GeoRAS/HEC-RAS Model" in "Civil & Environmental Engineering," Environ Eng 5: 179. Volume 5 • Issue 4 • 1000178. 2015.
[3] T. Das, E. P. Maurer, D. W. Pierce, M. D. Dettinger, and R. J. Cayan, "Increases in flood magnitudes in California under warming climates, in ScienceDirect Journal of Hydrology " vol. 501, pp. 101-110, 2013.
[4] R. Ghimire, S. Ferreira, and J. H. Dorfman, "Flood-induced displacement and civil conflict," in World Development vol. 66, pp. 614-628, 2015.
[5] J. Li and W.Shi, "Effects of alpine swamp wetland change on rainfall season runoff and flood characteristics in the headwater area of the Yangtze River," Catena vol. 127, pp. 116-123, 2015.
[6] J. C. Aerts and W. W. Botzen, "Climate change impacts on pricing long-term flood insurance: A comprehensive study for the Netherlands" Global environmental change,vol. 21, no. 3, pp. 1045-1060, 2011.
[7] M.Biedler, "Hydropolitics of the Tigris-Euphrates River basin with implications for the European Union" CERIS Centre Européen de Recherche Internationale et Stratégique pp. 1-44, 2004.
[8] A. Ali, N. Al-Ansari, S. J. H. Knutsson, "Morphology of Tigris river within Baghdad city" Hydrology and Earth System Sciences, vol. 16, no. 10, pp. 3783-3790, 2012.
[9] B. Ahmad, M. S. Kaleem, M. J. Butt, and Z. H. Dahri, "Hydrological modelling and flood hazard mapping of Nullah Lai," Proc. Pakistan Acad. Sci, vol. 47, no. 4, pp. 215-226, 2010.
[10] M. Masood and K. J. F. TakeuchI, "Flood Hazard and Risk Assessment in Mideastern part of Dhaka Bangladesh,"in SAARC Workshop on Flood Risk Management in South Asia 2012.
[11] H.-J. Ban, Y.-J. Kwon, H. Shin, H.-S. Ryu, and S. Hong, "Flood monitoring using satellite-based RGB composite imagery and refractive index retrieval in visible and near-infrared bands," in Remote Sensing vol. 9, no. 4, p. 313, 2017.
[12] H. T. AL-Rikabi, S. L. Zubaidi, H. T. Salim, and A. M. AL-Aayedi, "An Investigation into The Societal Attitudes and Acceptance of Treated Wastewater Reuse in An Area Experiencing Water Scarcity," in E3S Web of Conferences, 2025, vol. 621, p. 03003: EDP Sciences.
[13] F. Esfandiary Darabad, M. Kheirizadeh, and M. Rahimi, "Evaluation of morphological changes and flood hazard of Kivi Chay river using geomorphometric indices and HEC-RAS model," Quantitative Geomorphological Research vol. 11, no. 1, pp. 19-43, 2022.
[14] H. T. Alrikabi and S. L. Zubaidi, "The public's attitude toward recycled water: a review," in Wasit Journal of Engineering Sciences vol. 12, no. 3, pp. 120-134, 2024.
[15] T. W. Mahdi and A. N. Hilo, "Estimation of flood hazards using Hec-Ras 1D: The case of Al-Musandaq escape," in 2021 International Conference on Advance of Sustainable Engineering and its Application (ICASEA), 2021, pp. 131-136: IEEE.
[16] G. O. Gül, N. Harmancıoğlu, and A. Gül, "A combined hydrologic and hydraulic modeling approach for testing efficiency of structural flood control measures," Natural hazards, vol. 54, pp. 245-260, 2010.
[17] M. Haq, M. Akhtar, S. Muhammad, S. Paras, J. Rahmatullah, and S. Science, "Techniques of remote sensing and GIS for flood monitoring and damage assessment: a case study of Sindh province, Pakistan," The Egyptian Journal of Remote Sensing and Space Science, vol. 15, no. 2, pp. 135-141, 2012.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 sajjad Inhayyir Abuthena, Ali N. Hilo, Clare B. Harris
This work is licensed under a Creative Commons Attribution 4.0 International License.
