Flood Prediction for Bali Valley, El Gouna, Egypt

  • Elzahry F. Elzahry, Ahmed I. Abdallah, Neveen B. Abd. El-Mageed


Tourism is one of the most important sources of national income in Egypt, as the national economic plan for Egypt includes the development of the Eastern Desert because of its beautiful nature and easy access to water activities. Egypt's eastern desert is characterized by drought and scarcity of rain.However, heavy rains may occur, resulting in flash floods extending into the Red Sea coast, accompanied by loss of human life and damage to infrastructure in nearby urban and tourist areas. The Bali valley in the eastern desert was selected as a case study to predict flash flooding in arid and semi-arid areas. It is located 8 kilometers from the tourist city ofEl Gouna along the coast of the Red Sea. In this study, soil conservation service unit hydrograph (SCS-UH) was modeled to simulate rainfall-runoff in the semi-arid region using the HEC-HMS program. After calibration and validation of the model for a real event of rainfall, it was improved for more accuracy. The results indicate the applicability of the SCS-UH model for reliable simulation of the rainfall-runoff process for the Bali drainage basin. Based on rainfall data available from the rain gauge station in Hurghada from 1969 to 2019, the peak discharges for the 5, 10, 25, 50, and 100-year storms were obtained. Finally, flood hazard and risk assessment in El Gouna city using the HEC-RAS program was modeled for a 100-year storm. The results of this paper have provided useful information for key stakeholders/decision-makers in water resources.

How to Cite
Elzahry F. Elzahry, Ahmed I. Abdallah, Neveen B. Abd. El-Mageed. (2022). Flood Prediction for Bali Valley, El Gouna, Egypt. Design Engineering, (1), 2063 - 2077. Retrieved from http://thedesignengineering.com/index.php/DE/article/view/9175