Cherbourg Harbour

Coordinates: 49°39′33″N 1°36′42″W / 49.659072°N 1.611729°W / 49.659072; -1.611729
Source: Wikipedia, the free encyclopedia.

49°39′33″N 1°36′42″W / 49.659072°N 1.611729°W / 49.659072; -1.611729

Plan of Cherbourg harbour showing its outer breakwaters

Cherbourg Harbour (French: rade de Cherbourg; literally, the "roadstead of Cherbourg") is a harbour situated at the northern end of the Cotentin Peninsula, on the English Channel coastline, in Normandy, northwestern France. With a surface area of 1,500 hectares, it is the second largest artificial harbour in the world, after the 4,500 hectare Ras Laffan Harbour in Qatar. As well as Cherbourg Naval Base, it has been used for mercantile shipping.

It was begun in 1783, with its central harbour breakwater completed in 1853 – this was 3.64 km long, an average of 100 m wide at its base and an average of 12 m wide at its top, and sited 4 km from the coast. Three forts were added to its central wall in 1860. This and the two other breakwaters stretch for more than 6 km. The eastern opening into the harbour is 950 m wide and the western one 2.3 km wide. The harbour's maximum depth is 13 m at low tide.

History

Cherbourg had been a strategic stronghold for several centuries - its castle was first built in the 5th century to protect the whole width of the

Triomphant at the entry point into the port, the Admirable on the Mielles, and the Soleil Royal
, the admiral's flagship, on the pointe du Hommet.

The Cessart design for the harbour.

The long-planned fortification of the town was finally set in motion by

La Bretonnière. La Bretonnière's report considered that only Cherbourg had a harbour large enough for 80 warships at once. Exceeding Vauban's designs, he planned the construction of a 4 km long harbour wall between île Pelée and pointe de Querqueville. Dumouriez and Decaux, head of the engineers, advised that Louis build a shorter harbour in a straight line between île Pelée and pointe du Hommet, as foreseen by Vauban, with a single central entry point, with the emphasis on military defences. In the end La Bretonnière's plan won, but during the construction phase Decaux argued for the merits of concrete masonry caissons whereas La Bretonnière preferred sinking old warships and building up rock around them. However, the engineer Louis-Alexandre de Cessart
's plans were chosen, which involved constructing a mole from 90 tree trunks 20m by 20m, filled in with stones and linked by iron chains.

Construction began in 1783 and was completed in 70 years, by three architects -

La Bretonnière and Joseph Cachin. The first trunk was laid on 6 June 1784, one kilometre from Île Pelée, and the harbour was filled with 300 to 400 boats ferrying stone from the port at Becquet to the mole to build against the trunks. However, the first trunks were severely damaged by storms. On 22 June 1786 Louis XVI made his only trip away from Paris and Versailles to see how far work on the harbour had progressed and assisted in sinking the ninth stone section. Cessart's plans were finally scotched in 1788, with funding having run out and the French Revolution
imminent. This marked a return to La Bretonnière's plan, but in the period between 1789 and 1790 Dumouriez and Cessart left Cherbourg. Subsidies for the project were cut in 1790 and La Bretonnière was forced to hand in his resignation in 1792. Despite a law passed on 1 August 1792 ordering the construction of the military outer port, all works were suspended from 1792 to 1802.

In 1802, intending to make Cherbourg one of his main military ports in preparation for his

Marie-Louise of Austria
. That decree also ordered the construction of a new arsenal at the port. 1803 also saw Cherbourg's harbour fend off British attacks and become a base for privateers.

May 2006 aerial view of the Petite Rade (inner harbour) only.

Works on the central wall were again interrupted between 1813 and 1832 and were only finally completed in 1853 under

Charles Maurice Cabart Danneville made an entry point in the harbour's eastern breakwater, the digue Collignon, so that fishing boats could get out of the harbour rapidly, in case of emergency. That entry point later became the passe Cabart-Danneville. The breakwaters also resisted demolition by the Germans in 1944 during the Battle of Cherbourg
.

Forts

Fort du Homet

Fort de l'île Pelée

Fort Chavagnac

  • Fort de Chavagnac
    Fort de Chavagnac

Fort de l'Est

  • Fort de l'Est, destroyed during the Second World War
    Fort de l'Est, destroyed during the Second World War

Fort de l'Ouest

  • Fort de l'Ouest
    Fort de l'Ouest

Central fort

  • Fort Central
    Fort Central

Fort de Querqueville

Fort des Flamands

Gallery

  • Western wall of the outer harbour
    Western wall of the outer harbour
  • View of the harbour from the cemetery at Querqueville
    View of the harbour from the cemetery at Querqueville
  • View of the harbour from the cemetery at Querqueville
    View of the harbour from the cemetery at Querqueville

Citations

General bibliography

  • (In French) Bazan, "Quels sont les hommes qui ont exercé le plus d'influence sur la création d'un arsenal maritime à Cherbourg et en particulier quelle part doit être attribuée à Vauban dans les projets relatifs à la fermeture de la rade", extract from Séances du congrès scientifique de France, tenu à Cherbourg en septembre 1860. Cherbourg : Auguste Mouchel, 1860. 16 pages
  • (In French) Yves Murie, La Digue qui a fait Cherbourg. Cherbourg, Isoète, 2007 -

External links