Canal Lock Gates
Water-control gates and chambers that helped boats move between different canal or river levels.
Core metadata
- ID: canal_lock_gates
- Era: Medieval
- First known date: 983 (exact)
- Region: China / Grand Canal
- Review status: source_checked
- Maturity: established
Prerequisites
Dependents
- None.
Fields
Field lanes
- Water & Sanitation Systems: Conveyance & Distribution
- Civil Engineering & Built Environment: Transport Infrastructure
Node sources
- Lock (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity
- The Development of Canal Locks (Encyclopedia.com, 2026, generic_overview) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 2
- Average edge confidence: 79%
- Prerequisite sources: 2
- expert_inference: 1
- textbook: 1
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Canal Networks (canal_networks) | required | 86% | textbook | A canal lock is a gated chamber in a canal or navigable waterway, so canal/waterway infrastructure is a direct scope dependency. |
|
| Irrigation Sluice Gates (irrigation_sluice_gates) | historical_predecessor | 72% | expert_inference | Earlier water-control gates and weirs are a plausible mechanical predecessor to chambered navigation locks, but irrigation gates are not the same technology. |
|
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