← bridge ontologyBridge Asset › Construction and Temporary Works
Cofferdam
bridge.construction_system.cofferdampublishedEdit
Definition
Temporary enclosure excluding water or soil from foundation works.
- Class kind
- component
- Abstract
- no
- Depth
- 2
- Origin
- reference source
- Ontology
- engineering-reference-book.bridge v1.0.0
- Aliases
- Temporary Enclosure
- Abbreviations
- —
- Last changed
- 7/27/2026, 2:50:05 PM
Identification
- Positive labels
- Cofferdam, Temporary Enclosure
- Negative labels
- —
- Visual features
- temporary-work geometry or construction note
- Min identity clues
- 2
Evidence
- Preferred views
- method_statement, plan, section, temporary_works_drawing
- Evidence types
- view, detail, schedule, note, dimension, level, section_callout
- Source trace required
- yes
Measurements (5)
| Name | Symbol | Unit | Required |
|---|---|---|---|
| Length | L | m/mm | required |
| Width | W | m/mm | required |
| Height | H | m/mm | required |
| Instance Count | N | count | required |
| Material Type | MAT | — | required |
Relationships (1)
- enables_construction_of
bridge.*
BOQ items (1)
| Item code | Formula | Result | Unit |
|---|---|---|---|
bridge.temporary.cofferdam.quantity | N | count | count |
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_elevation_and_section_when_applicable
Provenance
- Basis
- engineering_reference
- Project values included
- no
Children (0)
None — this is a leaf class and can be deleted.