Hydromorphological criteria to improve the efficiency of small drainage works in road-ephemeral stream crossings
Abstract
From hazard criteria, culverts constitute the most problematic drainage works in ephemeral channels, due to its limited flow capacity and to a high risk of obstruction in flood periods. During these torrential events an important solid charge is carried, obstructing partially or totally the hydraulic structures and creating new hazards that affect to the overall road infrastructure and to the traffic. Finally a review of the main morphological effects is done and different hydromorphological criteria are taken into account to achieve the maximum efficiency in this structure type and to optimize its design and emplacement in ephemeral channels.Downloads
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