Navigability
The standard used in the European Union for classifying the navigability of inland waterways is the European Agreement on Main Inland Waterways of International Importance (AGN) of 1996, adopted by The Inland Transport Committee of the United Nations Economic Commission for Europe (ECE), which defines the following classes: (This table is incomplete.)
| Class | Tonnage (t) | Draught (m) | Length (m) | Width (m) | Air Draught (m) | Description |
|---|---|---|---|---|---|---|
| Class III | 1,000 | |||||
| Class IV | 1,000–1,500 | 2.5 | 80–85 | 9.5 | 5.2–7.0 | Johann Welker |
| Class Va | 1,500–3,000 | 2.5–2.8 | 95–110 | 11.4 | 5.2–7.0–9.1 | Large Rhine |
| Class VIb | 6,400–12,000 | 3.9 | 140 | 15 | 9.1 | |
| Class VII | 14,500–27,000 | 2.5–4.5 | 275–285 | 33.0–34.2 | 9.1 |
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