Ecological restoration in the Seine estuary

The Seine is an ecological corridor for many species and supports many wetlands. Although the estuary still has many wetlands of major ecological interest, particularly in the adjacent alluvial plains, the habitats and wetlands directly connected to the Seine are, on the other hand, not very present in some sections of the river due to development work.
- Port de Rouen

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The specificity of the Port of Rouen's territory is to have very spread out spaces along the Seine Valley and located along the river. In view of this situation, the actions carried out by HAROPA - Port of Rouen mainly aim to promote the link with the river by promoting, as far as possible, the development of hydraulic annexes which can serve as a temporary refuge for fish or feeding areas for shorebirds, the development of intertidal estuarine habitats (mudflats, reeds etc) or the creation of wetlands. These restoration actions carried out as part of environmental project measures are intended to contribute, at their level, to the ecological restoration of the estuary.

Creation of wetlands in Honfleur


HAROPA - Port of Rouen has recreated permanent pools and wet depressions suitable for the introduction of amphibians in the Honfleur alluvial plain.

Restoration of alluvial woodlands in Rives-en-Seine


HAROPA - Port of Rouen has restored an alluvial willow forest classified as a ZNIEFF type 2 on the Rives en Seine sector (Saint-Wandrille-Rançon) and has promoted its reconnection with the river.


Creation of estuarine habitats in Lillebonne


A former dredging sediment deposition chamber has been restored, allowing the creation of estuarine habitats such as mudflats and reedbeds following the removal of 300 m of protective dyke.


Creation of wet meadows on the Marais-Vernier


A wet meadow has been created on an area of about 9 ha including a wooded area with the planting of nearly 4,000 trees, mainly birches, willows and black poplars.


Ecological restoration of the Marais de l'Aulnay in Grand-Couronne


In Grand-Couronne, follow the Natterjack toad on an educational trail and discover the natural richness of the Marais de l'Aulnay restored by HAROPA - Port of Rouen.