Checking a Culvert Suitability for Flood Wave Routing Within the Framework of the EU Flood Directive
نویسندگان
چکیده
Flooding is an international problem that represents the most common and destructive of all weather-related natural hazards. Moreover, man-made interventions such as deforestation, clearance of land and the poor design of hydraulic works such as bridges and culverts can often intensify that risk. This paper demonstrates a complete hydraulic study that was performed in a culvert located in Loforrema torrent (N. Greece) so as to examine its suitability for the flood wave routing of different discharges. The hydraulic model HEC-RAS was employed in order to compute the water surface level in the culvert location for flood events with probabilities of 10, 100 and 500 years. The results illustrated that, under all cases, the culvert overflowed putting in great danger the passing vehicles and citizens. Finally, the necessity of complete hydraulic studies is highlighted in order to support decisions in the dimensioning of a bridge in the same location, which it will be sufficient enough to deliver low probability flood events.
منابع مشابه
Application of a One-Dimensional Computer Model to Flood Routing in Narrow Rivers
This paper deals with the development of a computer model for flood routing in narrow rivers. Equations describing the propagation of a flood wave in a channel-flood plain system are presented and solved using an implicit finite difference scheme. Particular emphasis has been given to the treatment of the friction term in the governing equation of motion.
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