|Length||120.11 miles (193.30 km)
(originally 102 mi or 164 km)
|Maximum boat beam||77.5 m (254 ft 3 in)|
|Navigation authority||Suez Canal Authority|
|Original owner||Suez Canal Company (Compagnie Universelle du Canal Maritime de Suez)|
|Construction began||April 25, 1859|
|Date completed||November 17, 1869|
|Start point||Port Said|
|End point||Port Tewfik, Suez|
|Branch(es)||The New Suez Canal|
The Suez Canal (Arabic: قناة السويس Qanāt al-Suwais) is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened 17 November 1869, after 10 years of construction, it allows ships to travel between Europe and South Asia without navigating around Africa thereby reducing the sea voyage distance between Europe and India by about 7,000 kilometres (4,300 mi). The northern terminus is Port Said, where there are two outlets to the sea; the southern terminus is Port Tewfik at the city of Suez, where there is one outlet to the sea. Ismailia is on its west bank, 3 km (1.9 mi) from the half-way point. In 2012, 17,225 vessels traversed the canal (47 per day).
When built, the canal was 164 km (102 mi) long and 8 m (26 ft) deep. After several enlargements, it is 193.30 km (120.11 mi) long, 24 m (79 ft) deep and 205 metres (673 ft) wide. It consists of the northern access channel of 22 km (14 mi), the canal itself of 162.25 km (100.82 mi) and the southern access channel of 9 km (5.6 mi).
The canal is single-lane with passing places in the Ballah Bypass and the Great Bitter Lake. It contains no locks; seawater flows 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.
The canal is owned and maintained by the Suez Canal Authority (SCA) of Egypt. Under the Convention of Constantinople, it may be used "in time of war as in time of peace, by every vessel of commerce or of war, without distinction of flag."
In August 2014, construction was launched to expand and widen the Ballah Bypass, for 35km, costing $8.4 billion, to speed the canal's transit time. Funding was arranged by issuing interest-bearing investment certificates exclusively to Egyptian entities and individuals, and the target amount was collected over only six working days. The expansion is expected to double the capacity of the Suez Canal from 49 to 97 ships a day. Construction of the project is expected to take a year.
Ancient west–east canals were built to facilitate travel from the Nile river to the Red Sea. One smaller canal is believed to have been constructed under the auspices of Senusret II or Ramesses II. Another canal, probably incorporating a portion of the first, was constructed under the reign of Necho II, but the only fully functional canal was engineered and completed by Darius I.
The legendary Sesostris (likely either Pharaoh Senusret II or Senusret III of the Twelfth dynasty of Egypt) is suggested to have perhaps started work on an ancient canal joining the Nile with the Red Sea (1897 BC – 1839 BC). (It is said that in ancient times the Red Sea reached northward to the Bitter Lakes and Lake Timsah.)
One of their kings tried to make a canal to it (for it would have been of no little advantage to them for the whole region to have become navigable; Sesostris is said to have been the first of the ancient kings to try), but he found that the sea was higher than the land. So he first, and Darius afterwards, stopped making the canal, lest the sea should mix with the river water and spoil it.
165. Next comes the Tyro tribe and, on the Red Sea, the harbour of the Daneoi, from which Sesostris, king of Egypt, intended to carry a ship-canal to where the Nile flows into what is known as the Delta; this is a distance of over 60 miles. Later the Persian king Darius had the same idea, and yet again Ptolemy II, who made a trench 100 feet wide, 30 feet deep and about 35 miles long, as far as the Bitter Lakes.
In the second half of the 19th century, French cartographers discovered the remnants of an ancient north–south canal past the east side of Lake Timsah and ending near the north end of the Great Bitter Lake. This proved to be the celebrated canal made by the Persian king Darius I, as his stele commemorating its construction was found at the site. (This ancient, second canal may have followed a course along the shoreline of the Red Sea when it once extended north to Lake Timsah.) In the 20th century the northward extension of this ancient canal was discovered, extending from Lake Timsah to the Ballah Lakes. This was dated to the Middle Kingdom of Egypt by extrapolating the dates of ancient sites along its course.
The reliefs of the Punt expedition under Hatshepsut 1470 BC depict seagoing vessels carrying the expeditionary force returning from Punt. This has given rise to the suggestion that a navigable link existed between the Red Sea and the Nile. Evidence seems to indicate its existence by the 13th century BC during the time of Ramesses II.
Remnants of an ancient west–east canal through the ancient Egyptian cities of Bubastis, Pi-Ramesses, and Pithom were discovered by Napoleon Bonaparte and his engineers and cartographers in 1799.
According to the Histories of the Greek historian Herodotus, about 600 BC, Necho II undertook to dig a west–east canal through the Wadi Tumilat between Bubastis and Heroopolis, and perhaps continued it to the Heroopolite Gulf and the Red Sea. Regardless, Necho is reported as having never completed his project.
Herodotus was told that 120,000 men perished in this undertaking, but this figure is doubtlessly exaggerated. According to Pliny the Elder, Necho's extension to the canal was about 57 English miles, equal to the total distance between Bubastis and the Great Bitter Lake, allowing for winding through valleys that it had to pass through. The length that Herodotus tells us, of over 1000 stadia (i.e., over 114 miles), must be understood to include the entire distance between the Nile and the Red Sea at that time.
With Necho's death, work was discontinued. Herodotus tells us that the reason the project was abandoned was because of a warning received from an oracle that others would benefit by its successful completion. In fact, Necho's war with Nebuchadnezzar II most probably prevented the canal's continuation.
Necho's project was completed by Darius I of Persia, who ruled over Ancient Egypt after it had been conquered by his predecessor Cambyses II. We are told that by Darius's time a natural waterway passage which had existed between the Heroopolite Gulf and the Red Sea in the vicinity of the Egyptian town of Shaluf (alt. Chalouf or Shaloof), located just south of the Great Bitter Lake, had become so blocked with silt that Darius needed to clear it out so as to allow navigation once again. According to Herodotus, Darius's canal was wide enough that two triremes could pass each other with oars extended, and required four days to traverse. Darius commemorated his achievement with a number of granite stelae that he set up on the Nile bank, including one near Kabret, and a further one a few miles north of Suez. The Darius Inscriptions read:
Saith King Darius: I am a Persian. Setting out from Persia, I conquered Egypt. I ordered this canal dug from the river called the Nile that flows in Egypt, to the sea that begins in Persia. When the canal had been dug as I ordered, ships went from Egypt through this canal to Persia, even as I intended.—Darius Inscription
The canal left the Nile at Bubastis. An inscription  on a pillar at Pithom records that in 270 or 269 BC it was again reopened, by Ptolemy II Philadelphus. In Arsinoe, Ptolemy constructed a navigable lock, with sluices, at the Heroopolite Gulf of the Red Sea, which allowed the passage of vessels but prevented salt water from the Red Sea from mingling with the fresh water in the canal.
The Red Sea is believed by some historians to have gradually receded over the centuries, its coastline slowly moving southward away from Lake Timsah and the Great Bitter Lake. Coupled with persistent accumulations of Nile silt, maintenance and repair of Ptolemy's canal became increasingly cumbersome over each passing century.
Two hundred years after the construction of Ptolemy's canal, Cleopatra seems to have had no west–east waterway passage, because the Pelusiac branch of the Nile, which had fed Ptolemy's west–east canal, had by that time dwindled, being choked with silt.
By the 8th century, a navigable canal existed between Old Cairo and the Red Sea, but accounts vary as to who ordered its construction—either Trajan or 'Amr ibn al-'As, or Omar the Great. This canal was reportedly linked to the River Nile at Old Cairo and ended near modern Suez. A geography treatise by Dicuil reports a conversation with an English monk, Fidelis, who had sailed on the canal from the Nile to the Red Sea during a pilgrimage to the Holy Land in the first half of the 8th century
Al-Hakim bi-Amr Allah is claimed to have repaired the Cairo to Red Sea passageway, but only briefly, circa 1000 AD, as it soon "became choked with sand." However, we are told that parts of this canal still continued to fill in during the Nile's annual inundations.
The successful 1488 navigation of southern Africa by Bartolomeu Dias opened a direct maritime trading route to India and the spice islands, and forever changed the balance of Mediterranean trade. One of the most prominent losers in the new order, as former middlemen, was the former spice trading center of Venice.
|“||Venetian leaders, driven to desperation, contemplated digging a waterway between the Red Sea and the Nile—anticipating the Suez Canal by almost 400 years—to bring the luxury trade flooding to their doors again. But this remained a dream.||”|
—Colin Thubron, Seafarers: The Venetians (1980), p. 102
During the French campaign in Egypt and Syria in late 1798, Napoleon showed an interest in finding the remnants of an ancient waterway passage. This culminated in a cadre of archaeologists, scientists, cartographers and engineers scouring northern Egypt. Their findings, recorded in the Description de l'Égypte, include detailed maps that depict the discovery of an ancient canal extending northward from the Red Sea and then westward toward the Nile.
Later Napoleon, who would become French Emperor in 1804, contemplated the construction of a north–south canal to connect the Mediterranean with the Red Sea. But the plan was abandoned because it was wrongly concluded that the waterway would require locks to operate. These would be very expensive and take a long time to construct. This decision was based on an erroneous belief that the Red Sea was 10 m (33 ft) higher than the Mediterranean. The error was the result of using fragmentary survey measurements taken in wartime during Napoleon's Egyptian Expedition.
Although the alleged difference in sea levels could be problematic for construction, the idea of finding a shorter route to the east remained alive. In 1830, F. R. Chesney submitted a report to the British government that stated that there was no difference in altitude and that the Suez Canal was feasible, but his report received no further attention. Lieutenant Waghorn established his "Overland Route", which transported post and passengers to India via Egypt. Linant de Bellefonds, a French explorer of Egypt, became chief engineer of Egypt's Public Works. In addition to his normal duties, he surveyed the Isthmus of Suez and made plans for the Suez Canal. French Saint-Simonianists showed an interest in the canal and in 1833, Barthélemy Prosper Enfantin tried to draw Muhammad Ali's attention to the canal but was unsuccessful. Alois Negrelli, the Austrian railroad pioneer, became interested in the idea in 1836. In 1846, Prosper Enfantin's Société d'Études du Canal de Suez invited a number of experts, among them Robert Stephenson, Negrelli and Paul-Adrien Bourdaloue to study the feasibility of the Suez Canal (with the assistance of Linant de Bellefonds). Bourdaloue's survey of the isthmus was the first generally accepted evidence that there was no practical difference in altitude between the two seas. Britain, however, feared that a canal open to everyone might interfere with its India trade and therefore preferred a connection by train from Alexandria via Cairo to Suez, which was eventually built by Stephenson.
In 1854 and 1856, Ferdinand de Lesseps obtained a concession from Sa'id Pasha, the Khedive of Egypt and Sudan, to create a company to construct a canal open to ships of all nations. The company was to operate the canal for 99 years from its opening. De Lesseps had used his friendly relationship with Sa'id, which he had developed while he was a French diplomat in the 1830s. As stipulated in the concessions, de Lesseps convened the International Commission for the piercing of the isthmus of Suez (Commission Internationale pour le percement de l'isthme des Suez) consisting of 13 experts from seven countries, among them John Robinson McClean, later President of the Institution of Civil Engineers in London, and again Negrelli, to examine the plans developed by Linant de Bellefonds, and to advise on the feasibility of and the best route for the canal. After surveys and analyses in Egypt and discussions in Paris on various aspects of the canal, where many of Negrelli's ideas prevailed, the commission produced a unanimous report in December 1856 containing a detailed description of the canal complete with plans and profiles. The Suez Canal Company (Compagnie universelle du canal maritime de Suez) came into being on 15 December 1858 and work started on the shore of the future Port Said on 25 April 1859.
The excavation took some 10 years using forced labour (corvée) of Egyptian workers. Some sources estimate that over 30,000 people were working on the canal at any given period, that more than 1.5 million people from various countries were employed, and that thousands of laborers died.
The British government had opposed the project from the outset to its completion. As one of the diplomatic moves against the canal, it disapproved of the use of "slave labor" of forced workers. The British Empire was the major global naval force and officially condemned the forced work and sent armed Bedouins to start a revolt among workers. Involuntary labor on the project ceased, and the viceroy condemned the corvée, halting the project.
Angered by the British opportunism, de Lesseps sent a letter to the British government remarking on the British lack of remorse a few years earlier when forced workers died in similar conditions building the British railway in Egypt.
Initially international opinion was sceptical and Suez Canal Company shares did not sell well overseas. Britain, the United States, Austria, and Russia did not buy a significant number of shares. All French shares were quickly sold in France. A contemporary British sceptic claimed:
|“||One thing is sure... our local merchant community doesn't pay practical attention at all to this grand work, and it is legitimate to doubt that the canal's receipts... could ever be sufficient to recover its maintenance fee. It will never become a large ship's accessible way in any case.||”|
The canal opened under French control on 17 November 1869. Although numerous technical, political, and financial problems had been overcome, the final cost was more than double the original estimate. The opening was performed by Khedive Isma'il Pasha of Egypt and Sudan, and at Ismail's invitation French Empress Eugenie in the Imperial yacht Aigle piloted by Napoléon Coste, who was bestowed by the Khedive the Ottoman Order of the Medjidie. The first ship through the canal was the British P&O liner Delta. Although L'Aigle was officially the first vessel through the canal, HMS Newport, captained by George Nares, passed through it first. On the night before the canal was due to open, Captain Nares navigated his vessel, in total darkness and without lights, through the mass of waiting ships until it was in front of L'Aigle. When dawn broke, the French were horrified to find that the Royal Navy was first in line and that it would be impossible to pass them. Nares received both an official reprimand and an unofficial vote of thanks from the Admiralty for his actions in promoting British interests and for demonstrating such superb seamanship.
After the opening, the Suez Canal Company was in financial difficulties. The remaining works were completed only in 1871, and traffic was below expectations in the first two years. De Lesseps therefore tried to increase revenues by interpreting the kind of net ton referred to in the second concession (tonneau de capacité) as meaning a ship's cargo capacity and not only the theoretical net tonnage of the "Moorsom System" introduced in Britain by the Merchant Shipping Act in 1854. The ensuing commercial and diplomatic activities resulted in the International Commission of Constantinople establishing a specific kind of net tonnage and settling the question of tariffs in its protocol of 18 December 1873. This was the origin of the Suez Canal Net Tonnage and the Suez Canal Special Tonnage Certificate still used.
The canal had an immediate and dramatic effect on world trade. Combined with the American transcontinental railroad completed six months earlier, it allowed the world to be circled in record time. It played an important role in increasing European colonisation of Africa. The construction of the canal was one of the reasons for the Panic of 1873, because goods from the Far East were carried in sailing vessels around the Cape of Good Hope and were stored in British warehouses. As sailing vessels were not adaptable for use through the canal, because the prevailing winds of the Mediterranean blow from west to east, British entrepôt trade suffered. External debts forced Said Pasha's successor, Isma'il Pasha, to sell his country's share in the canal for £4,000,000 (about £85.9 million in 2014) to the United Kingdom in 1875, but French shareholders still held the majority. Prime Minister Benjamin Disraeli was accused by William Ewart Gladstone of undermining Britain's constitutional system, because he had not referred to, or obtained consent from Parliament when purchasing the shares with funding from the Rothschilds.
The Convention of Constantinople in 1888 declared the canal a neutral zone under the protection of the British, who had occupied Egypt and Sudan at the request of Khedive Tewfiq to suppress the Urabi Revolt against his rule. The revolt went on from 1879 to 1882. As a result of British involvement on the side of Khedive Tewfiq, Britain gained control of the canal in 1882. The British defended the strategically important passage against a major Ottoman attack in 1915, during the First World War. Under the Anglo-Egyptian Treaty of 1936, the UK retained control over the canal. The canal was again strategically important in the 1939-1945 Second World War, and Italo-German attempts to recapture it were repulsed during the North Africa Campaign, while the canal was closed to Axis shipping. In 1951, Egypt repudiated the treaty, and in October 1954, the UK agreed to remove its troops. Withdrawal was completed on 18 July 1956.
Because of Egyptian overtures towards the Soviet Union, the United Kingdom and the United States withdrew their pledge to support the construction of the Aswan Dam. Egyptian President Gamal Abdel Nasser responded by nationalizing the canal in 1956 and transferring it to the Suez Canal Authority, intending to finance the dam project using revenue from the canal. This led to the Suez Crisis, known in the Arab World as the "Tripartite Aggression", in which the UK, France, and Israel invaded Egypt. According to the pre-agreed war plans under the Protocol of Sèvres, the Israelis invaded the Sinai Peninsula, forcing Egypt to engage them militarily, and allowing the Anglo-French partnership to declare the resultant fighting a threat to the canal and enter the war on Israel's side.
To save the British from what he thought was a disastrous action and to stop the war from a possible escalation, Canadian Secretary of State for External Affairs Lester B. Pearson proposed the creation of the first United Nations peacekeeping force to ensure access to the canal for all and an Israeli withdrawal from the Sinai Peninsula. On 4 November 1956, a majority at the United Nations voted for Pearson's peacekeeping resolution, which mandated the UN peacekeepers to stay in Sinai unless both Egypt and Israel agreed to their withdrawal. The United States backed this proposal by putting pressure on the British government through the selling of sterling, which would cause it to depreciate. Britain then agreed to withdraw its troops. Pearson was later awarded the Nobel Peace Prize. As a result of damage and ships sunk under orders from Nasser the canal was closed until April 1957, when it was cleared with UN assistance. A UN force (UNEF) was established to maintain the free navigability of the canal, and peace in the Sinai Peninsula.
According to the historian Abd aI-Azim Ramadan, Nasser's decision to nationalize the Suez Canal was his alone, made without political or military consultation. The events leading up to the nationalization of the Suez Canal Company, as other events during Nasser’s rule, showed Nasser’s inclination to solitary decision making. He considers Nasser to be far from a rational, responsible leader.
In May 1967, president Gamal Abdel Nasser ordered the UN peacekeeping forces out of Sinai, including the Suez Canal area. Israel objected to the closing of the Straits of Tiran to Israeli shipping. The canal had been closed to Israeli shipping since 1949, except for a short period in 1951–1952.
In 1973, during the Yom Kippur War, the canal was the scene of a major crossing by the Egyptian army into Israeli-occupied Sinai and a counter-crossing by the Israeli army to Egypt. Much wreckage from this conflict remains visible along the canal's edges. After the Yom Kippur War the United States initiated Operation Nimbus Moon. The amphibious assault ship USS Iwo Jima was sent to the Canal, carrying 12 RH-53D minesweeping helicopters of HM-12. These partly cleared the canal between May and December 1974. She was relieved by the LST USS Barnstable County (LST1197). The British Royal Navy initiated Operation Rheostat and Task Group 65.2 provided the minehunters HMS Maxton, HMS Bossington and HMS Wilton, and HMS Abdiel, a practice minelayer/MCMV support ship that spent two periods of 6 months in 1974 and in 1975 based at Ismailia. When the Canal Clearance Operations were completed, the canal and its lakes were considered 99% clear of mines. The canal was then reopened by Egyptian President Anwar Sadat aboard an Egyptian destroyer, which led the first convoy northbound to Port Said in 1975. At his side stood the Iranian Crown prince Ali Reza Pahlavi, delegated to represent his father, Mohammed Reza Pahlavi, the former Shah of Iran.
The UNEF mandate expired in 1979. Despite the efforts of the United States, Israel, Egypt, and others to obtain an extension of the UN role in observing the peace between Israel and Egypt, as called for under the Egypt–Israel Peace Treaty of 1979, the mandate could not be extended because of the veto by the Soviet Union in the UN Security Council, at the request of Syria. Accordingly, negotiations for a new observer force in the Sinai produced the Multinational Force and Observers (MFO), stationed in Sinai in 1981 in coordination with a phased Israeli withdrawal. It is there under agreements between the United States, Israel, Egypt, and other nations.
|Suez Canal map|
The canal allows passage of ships up to 20 m (66 ft) draft or 240,000 deadweight tons and up to a height of 68 m (223 ft) above water level and a maximum beam of 77.5 m (254 ft) under certain conditions. The canal can handle more traffic and larger ships than the Panama Canal. Some supertankers are too large to traverse the canal. Others can offload part of their cargo onto a canal-owned boat to reduce their draft, transit, and reload at the other end of the canal.
The canal has no locks because of the flat terrain, and the minor sea level difference between each end is inconsequential for shipping. As the canal has no sea surge gates, the ports at the ends would be subject to the sudden impact of tsunamis from the Mediterranean Sea and Red Sea, according to a 2012 article in the Journal of Coastal Research.
There is one shipping lane with passing areas in Ballah-Bypass near El Qantara and in the Great Bitter Lake. On a typical day, three convoys transit the canal, two southbound and one northbound. The passage takes between 11 and 16 hours at a speed of around 8 knots (15 km/h; 9 mph). The low speed helps prevent erosion of the banks by ships' wakes.
By 1955, about two-thirds of Europe's oil passed through the canal. Around 8% of world sea trade is carried via the canal. In 2008 21,415 vessels passed through the canal and the receipts totaled $5.381 billion, with the average cost per ship of $251,000.
New Rules of Navigation came into force on 1 January 2008, passed by the board of directors of the Suez Canal Authority (SCA) to organise vessels' transit. The most important amendments include allowing vessels with 62-foot (19 m) draught to pass, increasing the allowed breadth from 32 metres (105 ft) to 40 metres (130 ft) (following improvement operations), and imposing a fine on vessels using divers from outside the SCA inside the canal boundaries without permission. The amendments allow vessels loaded with dangerous cargo (such as radioactive or flammable materials) to pass if they conform with the latest amendments provided by international conventions.
The canal is too narrow for free two-way traffic, so ships pass in convoys and they use bypasses. The by-passes are 78 km (48 mi) out of 193 km (120 mi) (40%). From north to south, they are: Port Said by-pass (entrances) 36.5 km (23 mi), Ballah by-pass & anchorage, 9 km (6 mi), Timsah by-pass 5 km (3 mi), and the Deversoir by-pass (northern end of the Great Bitter Lake) 27.5 km (17 mi). The bypasses were completed in 1980.
Typically, it takes a ship 12 to 16 hours to transit the canal. The canal's 24-hour capacity is about 76 standard ships.
In August 2014, Egypt chose a consortium that includes the Egyptian army and global engineering firm Dar al-Handasah to develop an international industrial and logistics hub in the Suez Canal area, and began the construction of a new Canal-Section from km 60 to km 95 combined with expansion and deep digging of the other 37 km of the canal. This will allow navigation in both directions simultaneously in the 72 km long central section of the canal. It is anticipated that these projects will be finished in August 2015.
Since the canal does not cater for unregulated two-way traffic, all ships transit in convoys on regular times, scheduled on a 24-hour basis. Each day, a single northbound convoy starts at 06:00 from Suez, getting an unhindered passage. At bypasses, the convoy uses the eastern route. Interwoven in this convoy's passage are two southbound convoys. The first starts at 00:00 from Port Said, and anchors in the Great Bitter Lake to let the northbound pass; the second starts at 07:00 and anchors in the western Ballah bypass to let the northbound convoy pass. Because of the Ballah canal dimensions, this convoy is restricted to smaller and often unloaded ships.
From north to south, the crossings are:
A railway on the west bank runs parallel to the canal for its entire length.
The main alternative is around Cape Agulhas, the southernmost point of Africa, commonly referred as the Cape of Good Hope route. This was the only sea route before the canal was constructed, and when the canal was closed. It is still the only route for ships that are too large for the canal. In the early 21st century, the long route has enjoyed increased popularity because of increasing piracy in Somalia. Between 2008 and 2010, it is estimated that the canal lost 10% of traffic due to the threat of piracy, and another 10% due to the financial crisis. An oil tanker going from Saudi Arabia to the United States has 2,700 mi (4,345 km) longer to go when taking the route south of Africa rather than the canal.
Before the canal's opening in 1869, goods were sometimes offloaded from ships and carried overland between the Mediterranean and the Red Sea.
In recent years, the shrinking Arctic sea ice has made the Northern Sea Route feasible for commercial cargo ships between Europe and East Asia during a six-to-eight-week window in the summer months, shortening the voyage by thousands of miles compared to that through the Suez Canal. According to polar climate researchers, as the extent of the Arctic summer ice pack recedes the route will become passable without the help of icebreakers for a greater period each summer.
The Bremen-based Beluga Group claimed in 2009 to be the first Western company to attempt using the Northern Sea Route without assistance from icebreakers, cutting 4000 nautical miles off the journey between Ulsan, Korea and Rotterdam, the Netherlands.
The opening of the canal created the first salt-water passage between the Mediterranean and the Red Sea. Although the Red Sea is about 1.2 m (4 ft) higher than the eastern Mediterranean, the current between the Mediterranean and the middle of the canal at the Bitter Lakes flows north in winter and south in summer. The current south of the Bitter Lakes is tidal, varying with the tide at Suez. The Bitter Lakes, which were hypersaline natural lakes, blocked the migration of Red Sea species into the Mediterranean for many decades, but as the salinity of the lakes gradually equalised with that of the Red Sea the barrier to migration was removed, and plants and animals from the Red Sea have begun to colonise the eastern Mediterranean. The Red Sea is generally saltier and more nutrient-poor than the Atlantic, so the Red Sea species have advantages over Atlantic species in the less salty and nutrient-rich eastern Mediterranean. Accordingly, most Red Sea species invade the Mediterranean biota, and only few do the opposite. This migratory phenomenon is called Lessepsian migration (after Ferdinand de Lesseps) or "Erythrean invasion". Also impacting the eastern Mediterranean, starting in 1968, was the operation of Aswan High Dam across the Nile. While providing for increased human development, the project reduced the inflow of freshwater and ended all natural nutrient-rich silt entering the eastern Mediterranean at the Nile Delta. This provided less natural dilution of Mediterranean salinity and ended the higher levels of natural turbidity, additionally making conditions more like those in the Red Sea.
Invasive species originated from the Red Sea and introduced into the Mediterranean by the canal have become a major component of the Mediterranean ecosystem and have serious impacts on the ecology, endangering many local and endemic species. About 300 species from the Red Sea have been identified in the Mediterranean, and there are probably others yet unidentified. The Egyptian government's intent to enlarge the canal has raised concerns from marine biologists, fearing that this will worsen the invasion of Red Sea species.
Construction of the canal was preceded by cutting a small fresh-water canal called Sweet Water Canal from the Nile delta along Wadi Tumilat to the future canal, with a southern branch to Suez and a northern branch to Port Said. Completed in 1863, these brought fresh water to a previously arid area, initially for canal construction, and subsequently facilitating growth of agriculture and settlements along the canal.
Presidents of the Suez Canal Company (1858–1956):
Chairmen of the Suez Canal Authority (1956–present):
the prominent historian and commentator Abd al-Azim Ramadan, In a series of articles published in AlWafd, subsequently compiled in a hook published in 2000, Ramadan criticized the Nasser cult, …. The events leading up to the nationalization of the Suez Canal Company, as other events during Nasser’s rule, Ramadan wrote, showed Nasser to be far from a rational, responsible leader. … His decision to nationalize the Suez Canal was his alone, made without political or military consultation. … The source of all this evil. Ramadan noted, was Nasser’s inclination to solitary decision making… the revolutionary regime led by the same individual—Nasser— repeated its mistakes when it decided to expel the international peacekeeping force from the Sinai Peninsula and close the Straits of Tiran in 1967. Both decisions led to a state of war with Israel, despite the lack of military preparedness
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