Drainage and Protection System

Definition

Drainage, erosion protection, waterproofing, and water-management components.

Class kind

system

Abstract

yes

Depth

1

Origin

reference source

Ontology

engineering-reference-book.bridge v1.0.0

Aliases

—

Abbreviations

—

Last changed

7/27/2026, 2:50:05 PM

Identification

Positive labels

Drainage and Protection System

Negative labels

—

Visual features

—

Min identity clues

0

Evidence

Preferred views

—

Evidence types

view, detail, schedule, note, dimension, level, section_callout

Source trace required

yes

Measurements (0)

None — this class carries no measured quantities.

Relationships (0)

None declared.

BOQ items (0)

None — no quantity is derived from this class directly.

Validation

Blocking if missing

no

Human review allowed

yes

• no_evidence_no_number
• retain_document_page_bbox_and_evidence_id
• do_not_mix_drawing_revisions
• do_not_average_conflicting_values
• prefer_explicit_labels_over_shape_only
• match_plan_elevation_and_section_when_applicable

Provenance

Basis

engineering_reference

Project values included

no

Children (10)

• Bridge Deck Drain bridge.drainage_protection_system.deck_drain
• Drainage Downpipe bridge.drainage_protection_system.downpipe
• Weep Hole bridge.drainage_protection_system.weep_hole
• Subsurface Drain bridge.drainage_protection_system.subsurface_drain
• Catch Drain bridge.drainage_protection_system.catch_drain
• Toe Drain bridge.drainage_protection_system.toe_drain
• Riprap Protection bridge.drainage_protection_system.riprap
• Granular Filter Layer bridge.drainage_protection_system.filter_layer
• Geotextile bridge.drainage_protection_system.geotextile
• Slope Paving bridge.drainage_protection_system.slope_paving