← highway ontologyHighway Asset › Cross-Drainage System
Box Culvert
highway.cross_drainage_system.box_culvertdraftEdit
Definition
Rectangular reinforced-concrete box carrying flow under the road.
- Class kind
- component
- Abstract
- no
- Depth
- 2
- Origin
- reference source
- Ontology
- engineering-reference-book.highway v0.1.0
- Aliases
- RCC Box Culvert
- Abbreviations
- —
- Last changed
- 7/27/2026, 2:50:06 PM
Identification
- Positive labels
- Box Culvert, RCC Box Culvert
- Negative labels
- —
- Visual features
- —
- Min identity clues
- 2
Evidence
- Preferred views
- plan, cross_section, culvert_schedule, detail
- Evidence types
- view, detail, schedule, note, dimension, level, section_callout
- Source trace required
- yes
Measurements (6)
| Name | Symbol | Unit | Required |
|---|---|---|---|
| Chainage | CH | m | required |
| Clear Span | S | m | required |
| Clear Height | H | m | required |
| Barrel Length | L | m | required |
| Instance Count | N | count | required |
| Concrete Grade | fck | grade | optional |
Relationships (1)
BOQ items (1)
| Item code | Formula | Result | Unit |
|---|---|---|---|
highway.cross_drainage.box_culvert.count | N | count | nos |
Facets
- cells
- single_cell, double_cell, triple_cell
Validation
- Blocking if missing
- yes
- Human review allowed
- yes
no_evidence_no_numberretain_document_page_bbox_and_evidence_iddo_not_mix_drawing_revisionsdo_not_average_conflicting_valuesprefer_explicit_labels_over_shape_onlymatch_plan_profile_and_cross_section_when_applicable
Provenance
- Basis
- taxonomy_spec
- Project values included
- no
- mindmap_module_spec_taxonomy_highway
- no page list
Children (0)
None — this is a leaf class and can be deleted.