Suez Canal

The Suez Canal (Arabic: قناة السويس‎ Qanāt al-Suways) is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez, and separates the African continent from Asia. After 10 years of construction, it was officially opened on November 17, 1869. The canal allows ships to travel between Europe and South Asia without navigating around Africa, thereby reducing the sea voyage distance by about 7,000 kilometres (4,300 mi). It extends from the northern terminus of Port Said to the southern terminus of Port Tewfik at the city of Suez. Its length is 193.30 km (120.11 mi), including its northern and southern access channels. In 2012, 17,225 vessels traversed the canal (47 per day).

The canal is a single-lane waterway with passing locations in the Ballah Bypass and the Great Bitter Lake. It contains no locks system, with seawater flowing freely through it. In general, the canal north of the Bitter Lakes flows north in winter and south in summer. South of the lakes, the current changes with the tide at Suez.

Suez

Suez (Arabic: السويس‎ as-Suways ; Egyptian Arabic: es-Sewēs, el-Sewēs pronounced [esseˈweːs]) is a seaport city (population ca. 497,000) in north-eastern Egypt, located on the north coast of the Gulf of Suez (a branch of the Red Sea), near the southern terminus of the Suez Canal, having the same boundaries as Suez governorate. It has three harbors, Adabya, Ain Sukhna and Port Tawfiq, and extensive port facilities. Together they form a metropolitan area. Railway lines and highways connect the city with Cairo, Port Said, and Ismailia. Suez has a petrochemical plant, and its oil refineries have pipelines carrying the finished product to Cairo.

History

Early Islamic era

In the 7th century AD a town named "Kolzum" stood just north of the site of present-day Suez and served as eastern terminus of a canal built by Amr ibn al-'As linking the Nile River and the Red Sea. Kolzum's trade fell following the closure of the canal in 770 by the second Abbasid caliph al-Mansur to prevent his enemies in Arabia from accessing supplies from Egypt and the lands north of it. Nonetheless, the town benefited from the trade that remained between Egypt and Arabia. By 780 al-Mansur's successor al-Mahdi restored part of the canal. The Qarmatians led by Hasan ibn Ahmad defeated a Fatimid army headed by Gawhar al-Siqilli at Kolzum in 971 and thereby captured the town. Following his defeat in Cairo by al-Siqilli at the end of that year, Hasan and his forces retreated to Arabia via Kolzum. Suez was situated nearby and served as a source of drinking water for Kolzum according to Arab traveler al-Muqaddasi who visited in 986.

Canal

Canals and navigations are human-made channels for water. In the vernacular both are referred to as 'canals'. The main difference between them is that a navigation parallels a river and shares its drainage basin, while a canal cuts across a drainage divide.

Types of artificial waterways

A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the drainage basin of the river. A vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height.

A true canal is a channel that cuts across a drainage divide, making a navigable channel connecting two different drainage basins.

Most commercially important canals of the first half of the 19th-century were a little of each, using rivers in long stretches, and divide crossing canals in others. This is true for many canals still in use.

Structures used in artificial waterways

Both navigations and canals use engineered structures to improve navigation: