Experience feedback of mitigations mesures and environmental accompaniing works about Port 2000

Abstract

In 2001, different works to extend the harbour of Le Havre, Port 2000, have been initiated in the Seine estuary (France).This extension is located near one of the most important National Nature Reserve in France and concern one part of the EC protected area for the birds estuary and wetlands of the Basse Seine. The major consequence of these important works where to distroy the main high tide resting area for the limicols and other water birds. They also contribute to increase hydro-sedimentary impacts in the estuary in addition to draggings and reclamations done during the last century. To take in account these important environmental stakes, mitigations mesures and environmental accompaniing works have been initiated to reduce the impacts of Port 2000 project on habitats and species : the dredging of a channel 2800 m long, creation of a high tide resting zone for birds of 40 ha large, creation of an artificial island for birds. After six years of monitoring, results are showing what is running well and what mesures are not completely eficient and need modifications.