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Ship canal

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Title: Ship canal  
Author: World Heritage Encyclopedia
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Subject: Manchester Ship Canal, Canal+, Canal, Science and engineering in Manchester, Chesapeake and Delaware Canal
Collection: Coastal Construction, Ship Canals, Shipping, Water Transport
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Ship canal

A ship canal is a canal especially intended to accommodate ships used on the oceans, seas or lakes to which it is connected, as opposed to a barge canal intended to carry barges and other vessels specifically designed for river and/or canal navigation. Because of the constraints of accommodating vessels capable of navigating large bodies of open water, a ship canal typically offers deeper water and higher bridge clearances that a barge canal of similar vessel length and width constraints.

Ship canals may be specially constructed from the start to accommodate ships, or less frequently they may be enlarged barge canals, or canalized or channelized rivers. There are no specific minimum dimensions for ship canals, with the size being largely dictated by the size of ships in use nearby at the time of construction or enlargement.

Ship canals may be constructed for a number of reasons, including:

  1. To create a shortcut and avoid lengthy detours.
  2. To create a navigable shipping link between two land-locked seas or lakes.
  3. To provide inland cities with a direct shipping link to the sea.
  4. To provide an economical alternative to other options.

Contents

  • Important ship canals 1
  • Navigability 2
  • See also 3
  • References 4

Important ship canals

Canal Length Lock depth Dimensions Location Notes
White Sea – Baltic Canal 141 mi (227 km) 3.5 m (11 ft) 135 m × 14.3 m × 3.5 m Russia
  • Opened in 1933, is partly a canalised river, partly an artificial canal, and partly some natural lakes.
  • Shallow depth limits modern vessels from using the canal.
Rhine-Main-Danube Canal 106 mi (171 km) 4 m (13 ft) lock dimensions: 190m x 11.45 m x 4 m  Germany
Suez Canal 120.11 mi (193.30 km) No locks, but 24 m (79 ft) deep. 205 m (673 ft) wide  Egypt
Volga-Don Canal 62 mi (100 km) 3.5 m (11 ft) lock dimensions: 140m x 16.7 m x 3.5 m  Russia
Kiel Canal 60 mi (97 km) 14 m (46 ft) lock dimensions: 310m x 42 m x 14 m  Germany
Houston Ship Channel 56 mi (90 km) 14 m (46 ft) 161 m (528 ft) wide  United States
Panama Canal 51 mi (82 km) 25.9 m (85 ft) lock dimensions: 320m x 33.53 m x 25.9 m  Panama
Danube-Black Sea Canal 40 mi (64 km) 5.5 m (18 ft) lock dimensions: 138 m x 16.8 m x 5.5 m  Romania
Manchester Ship Canal 36 mi (58 km) 8.78 m (28.8 ft) lock dimensions: 170.68 m x 21.94 m x 8.78 m  United Kingdom
Welland Canal 43.4 km (27.0 mi) 8.2 m (27 ft) lock dimensions: 225.5 m x 23.9 m x 8.2 m  Canada
Saint Lawrence Seaway 600 km (370 mi) 8.2 m (27 ft) lock dimensions: 225.5 m x 2.3 m x 8.2 m  Canada
 United States

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:[1] (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[1]
Class Va 1,500–3,000 2.5–2.8 95–110 11.4 5.2–7.0–9.1 Large Rhine[1]
Class VIb 6,400–12,000 3.9 140 15 9.1 [1]
Class VII 14,500–27,000 2.5–4.5 275–285 33.0–34.2 9.1 [1]

See also

References

  1. ^ a b c d e "European Agreement on the main Inland Waterways of international importance (AGN)" (PDF). 2072, I-35939.  
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