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Structures in Watercourse BedsOuvrages du lit des cours d'eau

Ouvrages du lit des cours d'eauStructures in Watercourse Beds

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This API provides access to a geographic dataset listing structures located in watercourse beds within the canton of Geneva, Switzerland, such as channel linings, sills, ramps, and fish ladders. Alongside general civil engineering information, each structure is assessed for its ecological impact on the environment. Entries are typically accompanied by a photograph. The dataset is maintained by the Geneva territorial information system (Système d'information du territoire genevois) and is useful for water management, environmental monitoring, and infrastructure planning purposes.Cette couche recense les ouvrages situés dans le lit des cours d'eau, tels que cunettes, radiers, rampes, échelles à poissons, etc. Aux informations générales de génie civil s'ajoute une évaluation de l'impact écologique de l'ouvrage sur l'environnement. En général une photo illustre l'ouvrage.

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Trust score

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Weighted across five axes. Tap a ring for what it measures.

Data schema (30 fields)

Click a field to see example values.

FieldTypeDescription
OBJECTIDoidInternal unique record identifier.Internal unique record identifier.
IDENTIFICATEURstringUnique identifier code for the structure.Unique identifier code for the structure.
CODE_SLCECode slcestringWatercourse name and code the structure belongs to.Watercourse name and code the structure belongs to.
DATE_LEVEDate levedateDate the structure was surveyed.Date the structure was surveyed.
KM_ADM_AVALKm adm avalintegerAdministrative downstream kilometer position along the watercourse.Administrative downstream kilometer position along the watercourse.
TYPEstringType of structure (e.g. sill, ramp, fish ladder).Type of structure (e.g. sill, ramp, fish ladder).
MATERIAUstringConstruction material of the structure.Construction material of the structure.
H_CHUTES_TOTALH chutes totaldoubleTotal drop height created by the structure, in metres.Total drop height created by the structure, in metres.
H_CHUTES_MAXH chutes maxdoubleMaximum single drop height of the structure, in metres.Maximum single drop height of the structure, in metres.
NB_CHUTESNb chutesintegerNumber of drops/falls created by the structure.Number of drops/falls created by the structure.
LONGUEURdoubleLength of the structure, in metres.Length of the structure, in metres.
LARGEURdoubleWidth of the structure, in metres.Width of the structure, in metres.
ETAT_GENERALEtat generalstringGeneral condition assessment of the structure.General condition assessment of the structure.
DATE_CONSTATDate constatdateDate of the condition assessment.Date of the condition assessment.
REMARQUESstringFree-text remarks about the structure.Free-text remarks about the structure.
OUV_PROTECTION_CRUEOuv protection cruestringIndicates whether the structure serves flood protection purposes.Indicates whether the structure serves flood protection purposes.
EFFET_GESTION_EAUXEffet gestion eauxstringEffect of the structure on water flow management.Effect of the structure on water flow management.
EROSION_INSTABILITE_OUVARGEErosion instabilite ouvargestringLevel of structural instability caused by erosion.Level of structural instability caused by erosion.
EROSION_CONTOURNEMENTErosion contournementstringIndicates erosion bypassing around the structure.Indicates erosion bypassing around the structure.
EROSION_AFFOUILLEMENTErosion affouillementstringIndicates scouring erosion at the structure.Indicates scouring erosion at the structure.
EROSION_EFFONDREMENTErosion effondrementstringIndicates collapse caused by erosion.Indicates collapse caused by erosion.
EROSION_DATE_CONSTATErosion date constatdateDate the erosion assessment was recorded.Date the erosion assessment was recorded.
IMPACT_ECOLOGIQUEImpact ecologiquestringEcological impact rating of the structure on the environment.Ecological impact rating of the structure on the environment.
INTERVENTIONstringRecommended or performed intervention on the structure.Recommended or performed intervention on the structure.
GAINstringExpected ecological gain from removing or modifying the structure.Expected ecological gain from removing or modifying the structure.
GAIN_COMMENTAIREGain commentairestringComment explaining the expected ecological gain.Comment explaining the expected ecological gain.
LIEN_WWWLien wwwstringURL link to a photo of the structure.URL link to a photo of the structure.
IDL_OUV_COMPLEXEIdl ouv complexeintegerIdentifier linking the structure to a complex of structures.Identifier linking the structure to a complex of structures.
ANGLE_SYMBAngle symbdoubleRotation angle used to display the structure's map symbol.Rotation angle used to display the structure's map symbol.
SHAPEgeometryGeometric location of the structure.Geometric location of the structure.

Schema captured from arcgis 4 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (3 records)

Record 1GAIN: — · TYPE: Autre
{
  "GAIN": null,
  "TYPE": "Autre",
  "LARGEUR": null,
  "LIEN_WWW": "https://ge.ch/sitg/geodata/SIEAU/OUVRAGES/182_00290_12092006_01.JPG",
  "LONGUEUR": null,
  "MATERIAU": "Mixte",
  "OBJECTID": 1,
  "CODE_SLCE": "Abbaye-de-Presinge (Nant de l') - 182",
  "DATE_LEVE": 1158019200000,
  "NB_CHUTES": null,
  "REMARQUES": "Digue en terre avec exutoire en dalles de pierre bétonnées. L'ouvrage forme un plan d'eau de quelques dizaine de m2 en amont.",
  "ANGLE_SYMB": 140,
  "KM_ADM_AVAL": 290,
  "DATE_CONSTAT": 1209982129000,
  "ETAT_GENERAL": "Dégâts faibles",
  "H_CHUTES_MAX": null,
  "INTERVENTION": "pas d'intervention, car l'étang amont diversifie et enrichit les valeurs naturelles le long du ruisseau",
  "H_CHUTES_TOTAL": null,
  "IDENTIFICATEUR": "16632955574646875000",
  "GAIN_COMMENTAIRE": null,
  "IDL_OUV_COMPLEXE": null,
  "IMPACT_ECOLOGIQUE": "Positif moyen",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": 1209982129000,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": "Faible"
}
Record 2GAIN: Faible · TYPE: Seuil
{
  "GAIN": "Faible",
  "TYPE": "Seuil",
  "LARGEUR": 2,
  "LIEN_WWW": "https://ge.ch/sitg/geodata/SIEAU/OUVRAGES/016_01825_05092006_01.JPG",
  "LONGUEUR": 0.2,
  "MATERIAU": "Bois",
  "OBJECTID": 2,
  "CODE_SLCE": "Paradis (Nant du ) - 16",
  "DATE_LEVE": 1157414400000,
  "NB_CHUTES": 1,
  "REMARQUES": null,
  "ANGLE_SYMB": 135,
  "KM_ADM_AVAL": 1825,
  "DATE_CONSTAT": 1209983030000,
  "ETAT_GENERAL": "Dégâts faibles",
  "H_CHUTES_MAX": 0.3,
  "INTERVENTION": "Elimination",
  "H_CHUTES_TOTAL": 0.3,
  "IDENTIFICATEUR": "16632957502035000000",
  "GAIN_COMMENTAIRE": "le ruisseau n'est plus piscicole à ce niveau",
  "IDL_OUV_COMPLEXE": null,
  "IMPACT_ECOLOGIQUE": "Nul",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": 1209983030000,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": "Faible"
}
Record 3GAIN: Faible · TYPE: Seuil
{
  "GAIN": "Faible",
  "TYPE": "Seuil",
  "LARGEUR": null,
  "LIEN_WWW": "https://ge.ch/sitg/geodata/SIEAU/OUVRAGES/016_00635_05092006_01.JPG",
  "LONGUEUR": null,
  "MATERIAU": "Mixte",
  "OBJECTID": 3,
  "CODE_SLCE": "Paradis (Nant du ) - 16",
  "DATE_LEVE": 1157414400000,
  "NB_CHUTES": 1,
  "REMARQUES": "seuil en bois avec fosse de dissipation en blocs à l'aval",
  "ANGLE_SYMB": 190,
  "KM_ADM_AVAL": 635,
  "DATE_CONSTAT": 1209983187000,
  "ETAT_GENERAL": "Dégâts moyens",
  "H_CHUTES_MAX": 0.3,
  "INTERVENTION": "adaptation pour remettre le seuil franchissable pour la faune aquatique",
  "H_CHUTES_TOTAL": 0.3,
  "IDENTIFICATEUR": "16632957219656093750",
  "GAIN_COMMENTAIRE": "enjeux piscicoles mineurs",
  "IDL_OUV_COMPLEXE": null,
  "IMPACT_ECOLOGIQUE": "Nul",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": 1209983187000,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": "Moyen / Moyenne"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL
https://vector.sitg.ge.ch/arcgis/rest/services/LCE_OUVRAGES_LIT/MapServer

License

Terms stated by the source (not a recognized license):

© 2026 SITG

Query examples

curl -s 'https://vector.sitg.ge.ch/arcgis/rest/services/LCE_OUVRAGES_LIT/MapServer?f=json' -H 'Accept: application/json'

Service definition: the list of layers.

Full API documentation ↗

Dataset

Volume & freshness

Datasets
1
on this portal

Machine-readable & source

JSON
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