Environmental design of coastal defence in Lido di Dante, Italy

Zanuttigh, B., Martinelli, L., Lamberti, A., Moschella, P., Hawkins, S., Marzetti, S. and Ceccherelli, V.U. (2005) Environmental design of coastal defence in Lido di Dante, Italy. Coastal Engineering, 52 (10-11), 1089-1125. (doi:10.1016/j.coastaleng.2005.09.015).

Abstract

The aim of the paper is to present an integrated design of a coastal defence, by applying the knowledge gained within DELOS (EVK3-CT-2000-00041, www.delos.unibo.it) to an existing prototype case. For such purposes, Lido di Dante (Ravenna, Italy) was selected, being a well-documented site that suffers from severe erosion.

The design method proposed follows the Design Guidelines for low-crested structures delivered by DELOS. After a preliminary analysis of the environmental context and constraints, different design alternatives were proposed and then modelled with the 2DH model suite MIKE 21 for representative hydrodynamics and meteorological conditions. Engineering, ecological and social effects of each alternative are then assessed, based on the results of numerical simulations and experience in the area. A global judgement of the alternatives is given including consideration of both construction and maintenance costs. The preferred scheme is then optimised through more detailed design and verified by numerical modelling. The need for such an integrated approach is finally discussed including limitations.

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