Canal de Saint-Quentin

Canal de Saint-Quentin
Lock Noyelles-sur-Escaut on Canal Saint-Quentin
Specifications
Length	92.5 km (57.5 mi)
Maximum boat length	38.50 m (126.3 ft)
Maximum boat beam	5.05 m (16.6 ft)
Minimum boat draft	2.20 m (7.2 ft)
Minimum boat air draft	3.50 m (11.5 ft)
Locks	35
Total rise	43 m
Status	Open
History
Former names	Canal Crozat or Canal de Picardie between Chauny and Saint-Simon, in 1738
Current owner	Voies Navigables de France
Principal engineer	Original engineer named Devicq in 1727. Died in 1742.
Other engineer(s)	Revised plan by Laurent de Lyonne. Work began in 1768.
Date completed	1810
Geography
Start point	Canalised Escaut River (Scheldt) in Cambrai
End point	Chauny
Beginning coordinates	50°10′35″N 3°13′18″E / 50.17646°N 3.22173°E / 50.17646; 3.22173
Ending coordinates	49°36′29″N 3°13′31″E / 49.60814°N 3.22526°E / 49.60814; 3.22526
Connects to	Canal latéral à l'Oise Canal de l'Oise à l'Aisne Canal de la Sambre à l'Oise Canalised Escaut River

The Canal de Saint-Quentin (French pronunciation: [kanal də sɛ̃ kɑ̃tɛ̃]) is a canal in northern France connecting the canalised river Escaut in Cambrai to the Canal latéral à l'Oise and Canal de l'Oise à l'Aisne in Chauny.

The canal was built in two phases, the second much longer than the first. King Louis XIV's ministers Colbert and Mazarin had both proposed linking the rivers Oise and Somme in the 17th century and this resulted in the Canal Crozat, or Canal de Picardie, between Chauny and Saint-Simon in 1738. The remainder, connecting the Seine Basin with the Escaut was a lengthy process. The original designer, Devicq in 1727, died in 1742. Little was accomplished until Napoléon demanded that work begin again in 1801. He officiated at the opening in April 1810.^[1]

The canal was such a success that the locks had to be duplicated throughout in the early 20th century, at the same time deepening the channel, enlarging the tunnels, and increasing water supplies. Later improvements included electric barge traction on rails, installed during World War I, mechanising locks, and providing public lighting on the busiest sections. Later, the locks were equipped for automatic operation, using remote sensors, and more recently by handheld remote control. By 1878, up to 110 barges were crossing the summit level daily. The Canal du Nord was built as a duplicate route and completed in 1965. The canal carried more freight than any other man-made waterway in France in 1964.^[1]

The Canal in World War I formed part of the Hindenburg Line, a German defensive position built during the winter of 1916–1917. The Allied crossing of the St Quentin Canal in 1918 was a significant part of the Hundred Days Offensive that led to the Armistice.

This canal is an asset for tourism, boating and on the towpath, especially the northern section in the Escaut valley, the spectacular summit level with its tunnels and the boat harbour in the basin at Saint-Quentin. Commercial traffic declined after opening of the Canal du Nord, and it is now consistently quiet and peaceful, although a few Freycinet barges still use this route.^[2]

• PK 0 Cambrai
• PK 11 Masnières
• PK 18 Les Rues-des-Vignes
• PK 23 Honnecourt-sur-Escaut
• PK 28.5-35 Riqueval Tunnel (5670m) Bony
• PK 42-43 Tronquoy Tunnel (1098m) Lesdins
• PK 53 Saint-Quentin
• PK 62 Séraucourt-le-Grand
• PK 68 Right Petite Somme: Saint-Simon to Ham, closed 2006 (link to Canal de la Somme), route continues left
• PK 80.5 Voyaux
• PK 83 Tergnier
• PK 85 T-junction left 3.8 km branch to Canal de la Sambre à l'Oise Right continues as Canal de Saint-Quentin
• PK 92 Chauny, the canal continues as Canal latéral à l'Oise towards Paris. Left Canal de l'Oise à l'Aisne

• Video showing the "Souterrain de Riqueval" and local area
• Canal de Saint-Quentin with maps and details of places, moorings and services (by the author of Inland Waterways of France, Imray)
• Navigation details for 80 French rivers and canals (French waterways website section)

Wikimedia Commons has media related to Canal de Saint-Quentin.