Coastal Heritage and Changing Coastlines : Culturel Heritage on the Move

Serna Virginie

Directorate General of Heritage and Architecture, French Ministry of Culture

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FR-IT Bilateral Cooperation in Heritage Science – 8^th Edition

TAKING ACTION IN THE FACE OF EXTREME EVENTS

Firenze, Opificio delle Pietre Dure, 

September 26th, 2024

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The coastline : inherited forms ��

• Falaises du Domaine d’Abbadia (Hendaye) © F. Larrey - Conservatoire du littoral

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Coastal heritage

1975 Conservatoire du littoral, 1986 Loi Littoral, Estuaire 1992, 2011 Grenelle de la Mer, 2023 Stratégie nationale de la mer et du littoral

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The coastline - Le trait de côte

Land-sea boundary. Inherently mobile, fluctuating. The retreat of the coastline is irreversible.

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Les observatoires du trait de côte (CEREMA) Data.Shom.fr - L’Océan en référence.

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The lines are moving – �The sea is rising

Open your eyes : half of the French coastline is eroding

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Islands, wetlands and estuaries: areas at major risk, entry points for sea level rise behind the coast

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Vague en pain de sucre. © A.-L. François- Blockhaus, Pointe de l’Hourdel (Somme) (2018)© Vocabulaire du littoral

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Archaeology et climate change�

Archaeological sites, excellents markers of sea level mobility

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Axe 15 CNRA, Territoires maritimes, fluviaux et lacustres

Archéologie des paysages maritimes submergés –F. Leroy – DRASSM

Urgence d’un inventaire des entités graphiques et des TrAcs, Grotte Cosquer (Marseille) – C. Montoya – SRA – DRAC Occitanie

Archéologie préventive littorale – plage d’Awala-Yalimapo (Guyane) M. Hamblin – DRASSM et Guyane

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Site de la Lède du Gurp, (Gironde). Stratigraphie du 9^e siècle au 1^er millénaire av. J.-C. au sein d’une butte d’argile arrachée à la côte. © Programme de recherche LITAQ. F. Verdin (dir).

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Break with a static and fixed vision

Concept of « free evolution » : not an abandonment, another way of being in the world

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Collectif Déclins d’Oeil-Normandie

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Conservatoire du littoral : long term management

Towards flexible management of the coastline. LIFE Adapto program (2017-2023) and Life Adapto + (2024-2028)

• co-construct scenarios for connection to the sea and spatial recomposition
• Implement local governance and experimentation with management
• methods Improve knowledge of the cultural heritage of sites
• Promoting the resilience of natural environments through nature-based solutions
• Restore hydrosedimentary functioning to limit erosion
• Put dunes fixed by vegetation back into movement and resilient management, restore mangroves.
• Redesign coastal paths.

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Make the general Inventory of the cultural heritage of the Littoral �

From the Resort to the Coastline – an Inventory that integrates definitively climate change

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24 inventory operations on the coast ports, seaside resort, fortified coastline, civil engineering

Estuaries, valleys, abers and rias, islands and islets

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2024 : Vers un Inventaire interrégional sur le littoral pour l’Arc atlantique (Pays de la Loire, Bretagne, Nouvelle-Aquitaine)

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�The fixed stone fisheries of the Channel coast �

Protection against offshore swells and the retreat of the coast

Cyrille Billard, François Levalet, « Granville – Pêcherie Cavey » [notice archéologique], ADLFI. Archéologie de la France - Informationses côtes

Les pêcheries fixes du littoral de la Manche 2013_67717_INV_PCI_FRANCE_00316 : « Retour de pêche Photo : L. Châtelais

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Prospects : Resist ? Suffer ? Adapt ? �

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�����Anticipate���Studies before disappearance ?�Choose ? �Learn to lose �

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Thanks for your attention!

Virginie Serna

Directorate General of Heritage and Architecture, French Ministry of Culture

Mission of the General Inventory of Cultural Heritage

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Virginie.serna@culture.gouv.fr

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