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Crossing structuresOuvrages de franchissement

Ouvrages de franchissementCrossing structures

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This dataset from the Système d'information du territoire genevois (Geneva territorial information system, Switzerland) inventories structures that cross watercourses, such as bridges, footbridges and culverts. In addition to general civil engineering information, each record includes an assessment of the structure's ecological impact on the environment. Entries are generally illustrated with a photograph of the structure. The layer covers the canton of Geneva and supports environmental and infrastructure management related to watercourse crossings.Cette couche recense les ouvrages de franchissement au-dessus des cours d'eau, tels que ponts, passerelles ou voûtages. 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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Data schema (28 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 slcestringCode identifying the watercourse section (SLCE) crossed.Code identifying the watercourse section (SLCE) crossed.
DATE_LEVEDate levedateDate the field survey was carried out.Date the field survey was carried out.
KM_ADM_AVALKm adm avalintegerDownstream administrative kilometre point of the structure.Downstream administrative kilometre point of the structure.
TYPEstringType of crossing structure, e.g. bridge, footbridge or culvert.Type of crossing structure, e.g. bridge, footbridge or culvert.
MATERIAU_CULLEEMateriau culleestringMaterial of the structure's abutments.Material of the structure's abutments.
MATERIAU_TABLIERMateriau tablierstringMaterial of the structure's deck.Material of the structure's deck.
PORTEEdoubleSpan length of the structure, in metres.Span length of the structure, in metres.
GABARITdoubleClearance height of the structure, in metres.Clearance height of the structure, in metres.
RADIERstringDescription of the structure's streambed sill or invert.Description of the structure's streambed sill or invert.
ETAT_GENERALEtat generalstringOverall physical condition of the structure.Overall physical condition of the structure.
DATE_CONSTATDate constatdateDate the structure's condition was assessed.Date the structure's condition was assessed.
REMARQUESstringFree-text remarks about the structure.Free-text remarks about the structure.
OUV_PROTECTION_CRUEOuv protection cruestringIndicates whether the structure serves as flood protection.Indicates whether the structure serves as flood protection.
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 observed due to erosion.Level of structural instability observed due to 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-related erosion at the structure.Indicates collapse-related erosion at the structure.
EROSION_DATE_CONSTATErosion date constatdateDate the erosion assessment was carried out.Date the erosion assessment was carried out.
IMPACT_ECOLOGIQUEImpact ecologiquestringAssessed level of the structure's ecological impact.Assessed level of the structure's ecological impact.
INTERVENTIONstringRecommended or planned intervention on the structure.Recommended or planned intervention on the structure.
GAINstringExpected ecological gain level from intervention.Expected ecological gain level from intervention.
GAIN_COMMENTAIREGain commentairestringComments on the expected ecological gain.Comments on the expected ecological gain.
LIEN_WWWLien wwwstringWeb link with further information about the structure.Web link with further information about the structure.
IDF_OUV_COMPLEXEIdf ouv complexeintegerIdentifier linking to a complex structure grouping.Identifier linking to a complex structure grouping.
ANGLE_SYMBAngle symbdoubleRotation angle used for map symbol display.Rotation angle used for map symbol display.

Schema captured from arcgis 4 days ago.

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Sample data (3 records)

Record 1GAIN: Moyen · TYPE: Pont
{
  "GAIN": "Moyen",
  "TYPE": "Pont",
  "PORTEE": 3,
  "RADIER": null,
  "GABARIT": 1.6,
  "LIEN_WWW": null,
  "OBJECTID": 1,
  "CODE_SLCE": "Roulave (Ruisseau Le ) - 91",
  "DATE_LEVE": 1166006781000,
  "REMARQUES": null,
  "ANGLE_SYMB": 60,
  "KM_ADM_AVAL": null,
  "DATE_CONSTAT": 1166006781000,
  "ETAT_GENERAL": "Bon état",
  "INTERVENTION": "Adaptation\r\nCasser le radier si techniquement possible",
  "IDENTIFICATEUR": "15633167235753281250",
  "MATERIAU_CULLEE": "Blocs",
  "GAIN_COMMENTAIRE": null,
  "IDF_OUV_COMPLEXE": null,
  "MATERIAU_TABLIER": "Blocs",
  "IMPACT_ECOLOGIQUE": "Négatif moyen",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": 1166006781000,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": "Faible"
}
Record 2GAIN: Moyen · TYPE: Voûtage
{
  "GAIN": "Moyen",
  "TYPE": "Voûtage",
  "PORTEE": null,
  "RADIER": null,
  "GABARIT": null,
  "LIEN_WWW": null,
  "OBJECTID": 2,
  "CODE_SLCE": "Braille (Nant de ) - 168",
  "DATE_LEVE": 990432916000,
  "REMARQUES": "Passage sous la route de Sauvergny, prolongé en canalisation sur 60 m (busage).\r\n",
  "ANGLE_SYMB": 45,
  "KM_ADM_AVAL": 1460,
  "DATE_CONSTAT": 990403200000,
  "ETAT_GENERAL": "Bon état",
  "INTERVENTION": "Réfection\r\nRemise à ciel ouvert en aval",
  "IDENTIFICATEUR": "15633210411836562500",
  "MATERIAU_CULLEE": null,
  "GAIN_COMMENTAIRE": null,
  "IDF_OUV_COMPLEXE": null,
  "MATERIAU_TABLIER": null,
  "IMPACT_ECOLOGIQUE": "Négatif élevé",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": null,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": null
}
Record 3GAIN: — · TYPE: Passerelle
{
  "GAIN": null,
  "TYPE": "Passerelle",
  "PORTEE": 1.9,
  "RADIER": null,
  "GABARIT": 0.6,
  "LIEN_WWW": null,
  "OBJECTID": 3,
  "CODE_SLCE": "Ecrevisses (Ruisseau des ) - 136",
  "DATE_LEVE": 1179322841000,
  "REMARQUES": "Dimensions en mètres; km administratifs en mètres\r\nIntégré à la passerelle en aval il y a un seuil ",
  "ANGLE_SYMB": 0,
  "KM_ADM_AVAL": 100,
  "DATE_CONSTAT": 1179273600000,
  "ETAT_GENERAL": "Bon état",
  "INTERVENTION": "pas de proposition",
  "IDENTIFICATEUR": "15633172562161273132",
  "MATERIAU_CULLEE": "Béton",
  "GAIN_COMMENTAIRE": null,
  "IDF_OUV_COMPLEXE": null,
  "MATERIAU_TABLIER": "Bois",
  "IMPACT_ECOLOGIQUE": "Nul",
  "EFFET_GESTION_EAUX": null,
  "OUV_PROTECTION_CRUE": null,
  "EROSION_DATE_CONSTAT": 1179273600000,
  "EROSION_EFFONDREMENT": null,
  "EROSION_AFFOUILLEMENT": null,
  "EROSION_CONTOURNEMENT": null,
  "EROSION_INSTABILITE_OUVARGE": null
}

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_FRANCHISSEMENT/FeatureServer

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_FRANCHISSEMENT/FeatureServer?f=json' -H 'Accept: application/json'

Service definition: the list of layers.

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Dataset

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