|Port 2000 - Combining a port development scheme and an environmental project to launch the rehabilitating the Seine estuary|
Scherrer, P.; Galichon, P. [s.d.]. Port 2000 - Combining a port development scheme and an environmental project to launch the rehabilitating the Seine estuary, in: (2003). Seminar Ports & Habitats: Brussels, March 20, 2003: Background documentation & summaries. pp. 45-54
In: (2003). Seminar Ports & Habitats: Brussels, March 20, 2003: Background documentation & summaries. International Navigation Association: Brussel. 76 pp., more
|Authors|| || Top |
- Scherrer, P.
- Galichon, P.
Port 2000 consists in developing a new site with harbour facilities designed to receive the largest container vessels under optimum conditions. Building of this new site (568 M€ for 6 berthes) needs 60 million cubic metres of sediments being dredged, of which about half will be used for harbour building.The first phase (4 berthes) provides for the construction of a quay 1,400 metres long. The technique used is a diaphragm wall (about 40 metres high to be able to dredge down to Le Havre datum height - 15.50 m).The new facilities will be protected by a rubble-mound breakwater using as much as possible sand and gravel materials of the site itself, the armour will be made up of accropod concrete blocks.Situated on the extreme north-west tip of the Seine estuary, the works take into account an estuarine environment forming an habitat which is interfacial in nature (involving river, land and marine environments), enabling the simultaneous existence of a wide range of complementary biotopes (wetlands, reed-beds, mudflats and sand banks), thereby ensuring the cohesion of the food chain. As a result of the evolution of the estuary, the most fragile and most threatened link in the food chain appears to be that formed by the bare mudflats, found at a level between the average sea level and the high tide level.The Port 2000 project includes supportive environmental measures (45.74 M€) included themselves in a global management plan for the whole of Seine Estuary with notably the starting of a true rehabilitation of the estuary: mudflat development (22.87 M€) with the dredging of a purely environmentally dedicated channel (1.5 million cubic metres of fine sediments), new sanctuaries for birds, improvement of the ecological interest of the nearby nature reserve, creation of a 70 ha preserved area, creation of a fishing activities observatory.