# Culvert/ Drains — Notes

## Provenance

- Source: **CORENET X Code of Practice v3.1**, Section 4 (BIM Data Representation — IFC+SG), pages 26.
- Source link: [CORENET X — IFC-SG Glossary of Identified Components ↗](https://info.corenet.gov.sg/ifc-sg/bim-data-(ifc-sg)/glossary-of-identified-components?id=e0a70a7b-d185-49ac-ae25-a0ba863ee7eb)
- Discipline: **ARC**  ·  Authorities: **BCA, PUB**
- 2 IFC binding(s), 10 parameter(s), 1 declarative-only binding(s).

## IFC binding breakdown

- `IfcCivilElement` — subtypes: COMMONDRAIN, CROSSCULVERT, CULVERT, ENTRANCECULVERT, EXTERNALDRAIN, INTERNALDRAIN, OUTLETDRAIN, ROADSIDEDRAIN, TRENCH — 10 param(s), table format `6col`.
- `IfcBuildingElementProxy` — subtypes: DROPINLETCHAMBER — 0 param(s), table format `6col`.  **[no IFC+SG properties required]**

## Other input-limited parameters

These accept values from a defined list in the COP source table (not part of the global structural enums); see `examples` in `parameters.json`:

- LoadBearing