Canal Dunkerque-Escaut
The Canal Dunkerque-Escaut, also known as the Dunkirk-Scheldt Waterway, is a critical artery of inland navigation connecting the Port of Dunkerque to the Belgian border. Spanning 189 kilometers, this complex network consists of historic canals and the canalized river Scheldt. Originally developed through a series of smaller waterways, the route underwent substantial rebuilding between the mid-1950s and 1980 to accommodate larger commercial traffic.
Known technically as the Liaison 'à grand gabarit' (large dimensions or high capacity), the waterway was designed to support commercial vessels up to 85 meters in length and 11.50 meters in width, as well as push-tows reaching 143 meters. Today, it is a focal point of EU-funded investments within the Seine-Scheldt-Rhine waterway corridor, aiming to upgrade the route to European Class Vb dimensions to support even larger motor barges and push-tows.
[ไม่มีภาพประกอบ]Key Facts
- Total Length: 189 km (117 mi).
- Total Rise: 34.90 meters across 14 locks.
- Maximum Vessel Length: 143 meters (for push-tows).
- Maximum Beam: 11.50 meters.
- Minimum Draft: 3.00 meters.
- Strategic Connection: Links the Port of Dunkerque to the Haut-Escaut in Belgium.
Technical Specifications
The infrastructure of the Canal Dunkerque-Escaut is engineered for high-capacity transport. The locks are standardized to allow for significant vessel sizes, ensuring a steady flow of goods between the coast and the interior of Europe.
| Feature | Specification |
|---|---|
| Lock Length | 144.60 m |
| Lock Width | 12 m |
| Minimum Air Draft | 5.25 m |
| Number of Locks | 14 |
| Start Point | Mardyck maritime lock, Port of Dunkerque |
| End Point | Escaut River (Belgian Border) |
The Route and Composition
The waterway is not a single straight cut but a sophisticated assembly of nine historic waterways and three modern diversion canals. The journey begins at the Mardyck maritime lock in the Port of Dunkerque and progresses through a series of interconnected segments.
From Dunkirk to Arques
The route starts with the Mardyck diversion canal, which connects to the Canal de Bourbourg. From there, the Colme diversion canal leads into the Canal de la Colme. This section is upgraded at Watten, where it merges with the river Aa, continuing toward Arques.
The Central Network
From Arques, the path follows the Canal de Neuffossé to Aire-sur-la-Lys, then continues via the Canal d'Aire to Bauvin. The route then utilizes the Canal de la Deûle from Bauvin to Douai. While the Canal de la Deûle is a high-capacity waterway in its own right, it is often treated as a separate entity in modern practice despite its role in the Liaison.
The Final Stretch to the Border
To avoid the narrow sections of the river in Douai, the Scarpe diversion canal is used. The route then follows the Canal de la Sensée to the Bassin Rond in Bouchain, where it joins the river Scheldt. The official starting point (KP 0) of the Liaison is the Pont-Malin lock on the Escaut, located 500 meters beyond this junction. The river Scheldt then extends another 46 kilometers to the Belgian border.
Future Developments
As part of the broader European transport strategy, the Canal Dunkerque-Escaut is being integrated into the Seine-Nord Europe Canal project. This initiative aims to replace older, smaller Class II dimensions with modern infrastructure capable of handling European Class Vb vessels, including push-tows up to 185 meters long.
Frequently Asked Questions
What is the 'Liaison à grand gabarit'?
It is the technical name for the Dunkirk-Scheldt route, referring to its design for "large dimensions" or high-capacity commercial shipping.
How many locks are on the Canal Dunkerque-Escaut?
There are 14 locks along the route, managing a total elevation rise of 34.90 meters.
What are the maximum dimensions for boats on this canal?
The maximum boat beam is 11.50 meters, and the maximum length for push-tows is currently 143 meters.
Which major port does the canal connect to?
The canal begins at the Mardyck maritime lock within the Port of Dunkerque.
How is the canal being upgraded for the future?
The route is being upgraded to European Class Vb dimensions to accommodate larger motor barges (up to 125m) and push-tows (up to 185m) as part of the Seine-Scheldt-Rhine corridor investments.