Floods, Aisne and 2 other départements, January 2011
93 communes under a natural disaster declaration (flood)
192 protected animal species recorded in the declared communes in the ten years before the flood
19 animal species threatened on the national Red List, protected or not
birds: by their population in the flood's season
- Dates per the orders
- 5 to 11 January 2011
- Départements
- Aisne, Ardennes and Nord
- Flood type
- river flooding, runoff or mudflow, rising groundwater
- Heaviest rainfall
- 32 mm
- in one day (Ardennes, 6 January 2011), SIGNY-LE-PETIT station · per Météo-France
- 1 January 2011: 0.2 mm
- 2 January 2011: 0 mm
- 3 January 2011: 0 mm
- 4 January 2011: 0 mm
- 5 January 2011: 10 mm
- 6 January 2011: 32 mm
- 7 January 2011: 9.1 mm
- 8 January 2011: 17.1 mm
- 9 January 2011: 0 mm
42 mm from 4 to 6 Jan, up to the wettest day
The flood's dates
- Peak discharge
- 364 m³/s
- La Semoy à Haulmé, on 8 January 2011 · per Hub'Eau
- Extent
- communes under a natural disaster declaration (flood)
Protected species recorded in the declared communes
Observations recorded in the ten years before the flood, some known only to within a few kilometres, up to 10 km, when their published position is blurred or given by grid square. They tell which species were reported there, not what became of each animal.
2,906 species recorded in the declared communes
192 protected animal species among them and 5 protected plants
19 animal species threatened on the national Red List, protected or not (vulnerable, endangered or critically endangered)
154 Birds
10 Fish, molluscs and crayfish
10 Amphibians
10 Mammals, bats included
6 Reptiles
2 Insects
For birds, the category is the one of their population at the flood's season (breeding, wintering or passage birds): a bird with no dated record in the declared communes in that season in the GBIF data has none, and the breeding category needs at least two dated records in June or July. In the migration season (March, August to October), a bird that neither the passage list nor the wintering list assesses takes its breeding category only if it was recorded at least twice in the declared communes in June or July. The list used is named under each species.
The most notable protected animal species
Species with at least three observations (for a bird, three in the months that give it its category, and no bird without a record at the flood's season), the most threatened first, then the most recorded. An observation is a published record: it can count one or several animals, and the same animal can be noted several times. When their published position is imprecise, blurred or given by grid square, they are said to be "in the communes or nearby".
Birds
The observations cover every season: a migrant bird recorded there may have been away on the day of the flood.
Fish, molluscs and crayfish
For fish, national protection (order of 8 December 1988) covers their eggs and spawning grounds: several are fished legally.
Mammals, bats included
Amphibians
Photos: Wikimedia Commons, each under its own licence (CC BY, CC BY-SA, CC0, public domain). Credit for each photo
In the water's path
Establishments registered today in the communes declared for this flood, taken whole, at their declared address or at the point Géorisques gives. They were not necessarily there on the day of the flood, and the dataset does not say whether they were flooded. An ICPE-classified farm can also be in the SIRENE register: these counts do not add up.
14 ICPE-classified livestock farms located in the declared communes
Géorisques · ICPE425 livestock businesses in the SIRENE register based in the declared communes
SIRENE register · Insee27 veterinary practices based in the declared communes
SIRENE register · Insee22 animal protection associations based in the declared communes
National register of associations7 wildlife associations based in the declared communes
National register of associations
Of the 425 livestock businesses in the SIRENE register: 226 cattle, sheep, goat or pig farms, 14 horse farms, 7 poultry farms and 178 farms of other animals.
A wildlife association is an association whose declared purpose in the national register of associations is the preservation of wildlife: the register does not say whether it runs an authorised care centre.
Protected areas in the declared communes
The sites the communes declared for this flood extend over, taken whole, dry sectors included. Natura 2000 and regulatory protection first, then the ZNIEFF, each by its area in these communes. These are not flooded areas: they are not given.
- Plateau ardennaisNatura 2000, Birds Directive
- Forêts de Thiérache : Hirson et Saint-MichelNatura 2000, Birds Directive
- Moyenne vallée de l'OiseNatura 2000, Birds Directive
- Prairies alluviales de l'Oise de la Fère à SempignyNatura 2000, Habitats Directive
- Massif forestier d'HirsonNatura 2000, Habitats Directive
- Forêt, bocage, étangs de ThiéracheNatura 2000, Birds Directive
- Forêts de la vallée de la Semoy a Thilay et Hautes-rivièresNatura 2000, Habitats Directive
- Forêts picardes : massif de Saint-GobainNatura 2000, Birds Directive
- Tourbières du plateau ardennaisNatura 2000, Habitats Directive
- Forêts, bois, étangs et bocage herbager de la Fagne et du plateau d'AnorNatura 2000, Habitats Directive
- Pelouses, rochers et buxaie de la pointe de GivetNatura 2000, Habitats Directive
- Vallée de l'Oise de Hirson à ThourotteZNIEFF type II (inventoried natural area)
A marsh can be designated twice under Natura 2000, for its birds and for its habitats: the areas overlap and do not add up. A ZNIEFF is a wildlife inventory, with no regulatory protection.
The declared communes
93 communes declared a natural disaster (flood) for this flood, département by département.
AisneSee the 81 communes
Abbécourt, Achery, Anguilcourt-le-Sart, Any-Martin-Rieux, Assis-sur-Serre, Autreppes, Beautor, Bichancourt, Bucilly, Buire, Buironfosse, Chaourse, Chauny, Chigny, Condren, Crécy-sur-Serre, Crupilly, Effry, Englancourt, Erloy, Étréaupont, Flavigny-le-Grand-et-Beaurain, Franqueville, Gercy, Gergny, Guise, Hauteville, Hirson, Iron, Iviers, La Bouteille, La Capelle, La Fère, La Vallée-au-Blé, Landouzy-la-Cour, Lavaqueresse, Lerzy, Lesquielles-Saint-Germain, Lislet, Lugny, Luzoir, Macquigny, Manicamp, Marle, Marly-Gomont, Martigny, Mayot, Mézières-sur-Oise, Monceau-sur-Oise, Mondrepuis, Montloué, Moÿ-de-l'Aisne, Neuve-Maison, Noyales, Ohis, Origny-en-Thiérache, Origny-Sainte-Benoite, Pouilly-sur-Serre, Proisy, Proix, Quierzy, Ribemont, Rogny, Romery, Rougeries, Saint-Algis, Saint-Gobert, Saint-Michel, Servais, Séry-lès-Mézières, Sinceny, Sommeron, Sorbais, Tavaux-et-Pontséricourt, Thenelles, Travecy, Vadencourt, Vervins, Villers-lès-Guise, Voulpaix, Watigny
ArdennesSee the 9 communes
Aubrives, Givet, Ham-sur-Meuse, Haulmé, Les Hautes-Rivières, Revin, Thilay, Villers-Semeuse, Vireux-Molhain
NordSee the 3 communes
Anor, Fourmies, Wignehies
Download this flood's data
In every file of the dataset, this flood carries the identifier EV-20110106-20110107-02. Its dates were frozen when the identifier was created and differ here from the flood's.
Recognised and listed

A project labelled by the French StateNational Resilience Day 2026 (Journée nationale de la résilience)
Registered with GBIFDerived dataset, DOI 10.15468/dd.ta4vkx








