Saturday, October 25, 2014

The River Nile





Some years after returning to civilian life, I became enamored with ancient Egypt and its achievements.  So when the United States and Egyptian governments announced during the late 1950s – early 1960s that they were discussing having the United States construct a massive dam on the Nile, one that would match the achievements of early Egypt, I was interested.  Then aggrandizing world politics entered the picture and what was planned as a blessing for the people of Egypt turned into a massive tragedy.  The dam was completed in 1970, but more on that later.

As the title indicates, this essay has to do with the Nile, that grand river of Africa.  But my interests and activities related to Egypt didn’t start with the Nile.  Over forty years earlier, I was deeply involved with Egypt’s historic pharaoh, Tutankhamen.  It only seems appropriate to recap this earlier part of my Egyptian interests before getting on with the story of the Nile.   

My continued strong interest in Egypt provided a wealth of information over time.  During the 1970s, Egypt permitted thirty-or-so treasures from the tomb of Tutankhamen to tour six participating museums in the United States, including The Metropolitan Museum of Art in New York City during 1978.  Tickets for admission were issued for particular days and were difficult to obtain requiring standing on line for hours.  However, the pending exhibit was so popular that people were taking time off from work in an effort to obtain tickets.  I was very fortunate, getting tickets for two visits through the cooperative assistance of friends.  The visits were very productive in providing me with information on, not only the Tutankhamen treasures, but on Egypt and the Nile. 

During this approximate period, my daughter Wendy had one or more of her children in St. Anne’s School in Fairlawn, New Jersey, one of which was in the 5th grade.  Armed with all of my new found knowledge on Egypt, I approached the teaching staff and offered to make a presentation with slides, books and artifacts.  They accepted, and allowing for my inexperience, I made a successful presentation.  Subsequently, Wendy transferred her children to the Saddle Brook Long School where I met Mrs. L. Schoen.

Mrs. Schoen conducted an annual program on United Nations Day where each child would choose to represent a country by constructing a shadow box exhibit reflecting a well-known feature of the country.  Each child’s parents would prepare a food reflecting their heritage for a general all-are-invited lunch for the class members, parents, teachers and other program participants.  Mrs. Schoen, with the help of a class committee, would solicit 3-4 speakers from a list of volunteers to make a presentation on a country or subject of their choice.  I volunteered for an annual talk on Egypt, either on the discovery of Tutankhamen’s tomb, the Nile or such other subject matter that was preferred.  In my case, Mrs. Schoen chose the pharaoh.   

For each presentation, I prepared a binder of information with maps and photographs for the students to review, provided each student with a set of handouts and a 3x5 card with the student’s name in English and Egyptian hieroglyphics.  The length of each of my talks varied with the time available and with the student's interest.

One of the handouts was a map of Egypt annotated by me with additional information on geographical and important sites.  I would use the map during my talks to locate my subject.  One feature of the map was the Gulf of Aqabah located southeast of the Sinai Peninsula.  At the head of the gulf is the city of al Aqabah.  During my first two talks, I described the importance of al Aqabah to Turkey during the first World War by relating to the students part of the movie plot of Lawrence of Arabia where Lawrence successfully leads a force of Arabs in wresting al Aqabah from Turkey after crossing an allegedly impassible desert.  The students didn’t seem to understand, something that confused me.  It wasn’t until one of the teachers explained that none of the students were born early enough to have seen the movie and so didn’t know what I was talking about.  Something I hadn’t considered in my preparations.  I cite this incident as an illustration of the best-laid plans gone astray.  Lawrence was never used again. 

The purpose of the preceding paragraphs is to illustrate how my general interest in Egypt resulted in a specific interest in the pharaoh, which ended with a series of United Nations Day presentations..  The Nile either has played a subordinate role or has been ignored completely in the past.  This essay attempts to correct the omission.

The story of the Nile is being presented in four parts in this essay: The first two parts, The White Nile and The Blue Nile describe their origins and their contributions to The River Nile.   The third part, The River Nile presents the story of the Nile prior to the construction of the High Aswan Dam.  The fourth and following part, The High Aswan Dam, discusses the events leading to the construction of the dam, the dam itself and the events during and following its construction.  As with the material presented in the previous parts on The White Nile and The Blue Nile, all information presented in this essay is supported by a bibliography of source material.  .

The Nile is the longest river in the world (over 4,100 miles), and is important to northeast Africa.  Never the less, public knowledge of the features of this river is mostly concentrated on the northernmost part, the part found in Egypt.  Very little general information, other than formal studies, has been prepared for the southern part of the Nile from the Egyptian – Sudanese border south to Lake Victoria and the White Nile, and southeast to the highlands of Ethiopia and the Blue Nile.  This is understandable when one considers what is found, and what has been exploited, along the Egyptian Nile compared to what the Sudanese Nile has to offer north of Khartoum and south to the Nile headwaters.  Ignored in popular articles are the Lake Victoria basin and its effect on the countries that surround it and the importance, both politically and geographically, of the Lake Tania plateau in Ethiopia to Egypt and its economy.  The chapters that follow will attempt to correct this oversight by describing the origins of the White Nile and the Blue Nile, the passage of these rivers to Khartoum, where they join and form the more familiar Nile, and the flow north of the Nile through Sudan and Egypt to the Mediterranean Sea.                     


The White Nile.  In the prologue of his book, The White Nile, Alan Moorhead has this to say about the river:  “Almost certainly the ancient Egyptians knew the Nile valley from the Mediterranean as far as the present city of Khartoum, where the Blue Nile comes in from the Ethiopian mountains.  Probably they knew something of the Blue Nile as well.  But the further course of the parent stream, the White Nile, south of Khartoum, remained a matter of endless speculation, and it interested every distinguished geographer of his age.” 

Around 457 B.C., Herodotus, who traveled as far as the first cataract, remarked. “…of the sources of the Nile no one can give any account … it enters Egypt from parts beyond.”  During the second century B.C., Eratosthenes, a Greek writer, sketched a reasonably correct Nile to Khartoum and suggested lakes as a possible source.  And so it went over the years with exploring expeditions from Greece, a Roman governor of Egypt, and representatives of Roman emperor Nero, who managed to get as far as The Sudd before turning back.  Ptolemy, the Greek geographer who lived in Alexandria, opinioned that the Nile source was in the “Mountains of the Moon,” now believed to be the Ruwenzori Range.  Centuries of additional explorations added little to what was known.  Maps of Africa through the early 19th century were neither accurate nor consistent, usually showing the interior as unexplored or not known, with fanciful drawings and descriptions of all sorts of monstrosities.  Through the last half of the 19th century, organized exploratory expeditions contributed much additional information on the sources of the Nile and drew attention to a large area of lakes and rivers situated around Lake Victoria.

Lake Victoria’s rain basin is unusually small, considering the size of the lake, but a major feature of the lake itself can explain this.  Most lakes drain a broad area with rivers, streams and ground water flowing into the lake.  Not so with Lake Victoria where most of its water comes from rain that falls directly over the huge lake.  Included in the lake’s rain basin are parts of five countries: Uganda, Kenya, Tanzania, Burundi, Rwanda and the eastern edge of the Democratic Republic of the Congo.  Surrounding Lake Victoria is a broad system of lakes and rivers that contribute to the White Nile, with a few secondary streams draining into the larger rivers.  Lakes include Lake Edward, Lake George, Lake Albert, Lake Kyoga and the northern tip of Lake Tanganyika in Burundi.  As a whole, the Lake Victoria rain basin may be considered as the source of the White Nile, but when the many rivers and lakes are considered, in reality, the White Nile has more than one source.              

An interesting climate exists in that part of Africa including Lake Victoria and the East African lakes region.  Lake Victoria sits astride the equator, though most of it will be found in the southern hemisphere, just south of Kampala.  East of the lake, between the lake and the Indian Ocean, lies a region in Kenya known as the East African Plateau where summer temperatures easily reach 115°.  In the East African lake region, due to a well-distributed rainfall, the mean temperature varies little during the year, ranging from 60° F to 80° F with relative humidity at about 80 percent.  While location and altitude affect these readings, the climate is more Mediterranean than tropical.

There are two commonly used descriptions of the White Nile (Bahr el Abiad).  The first includes that part of the river from Khartoum south to the junction of the Bahr el Jebel and the Bahr el Ghazal at Lake No near Malakal.  The second, and more descriptive, uses the Lake Victoria basin. 

The Ruvuvu River drains the Luvironza River in Burundi and flows into the Kagara River in Tanzania, which empties into Lake Victoria (Victoria Nyanza) on the west.  From the north shore of Lake Victoria, the Victoria Nile passes through Lake Kyoga into Lake Albert and, as the Albert Nile (Mobutu Nile), flows north to Nimule into Sudan as the Mountain Nile (Bahr el Jebel) where it receives flow from the Sobat River.  Continuing north, the Mountain Nile passes through an area of rapids from Nimule to Rejaf, enters a broad plain at Juba, and enters as Sudd at Bor.  The Sudd is a huge swamp remaining from a years past inland sea.  The area is a papyrus-choked swamp where half the river flow is lost to the Nile with the discharge from the Sudd into Lake No ranging from zero to 1,700 cubic feet per second.  At Lake No, near Malakal, the Bahr el Jebel and the Bahr el Ghazal are joined and the river turns east to Khartoum where it joins the Blue Nile and becomes the Nile.      

               
The Blue Nile.  Unlike the White Nile where multiple possible sources are found, the Blue Nile presents a less complicated source but in a more complex environment.  Ethiopia, where the Blue Nile source is located, harbors a major element of the Great Rift Valley and is less stable than the Lake Victoria basin of the White Nile, though the rift extends into that area of Africa. 

Just west of Djibouti is the Danakil Depression, which is the most northern part of the Ethiopian Afar Region.  The Region forms an isosceles triangle with its apex east of Addis Ababa, pointing like an arrow at Kenya as a part of the Great Rift Valley.  The Afar Region is approximately 250 miles east of Lake Tanya.  The Afar Triangle is a plate tectonic triple junction where three plates are pulling away from one another: the Arabian Plate and the two parts of the African Plate.  The area is highly unstable.  Geologists predict that the Red Sea will eventually flood the East Africa Rift, including the Afar Region, submerging its entire length and forming a new inland sea similar to the Red Sea. 

As if to confirm the geologists’ prediction, in September 2005, Nature reported that the movement of the Arabian and African plates away from each other had stretched the Earth’s crust such that, over a period of three weeks, the crust on the sides of the rift moved apart by 26 feet over a 37-mile section.  Aerial photos, as well as more detailed information, on the cracks and faults formed above the zone may be found in my essay More on the Great Rift Valley.   During the event, molten rock rose into the plate, reaching to within 1.2 miles of the surface.  Indications are that more of the same may be expected in years to come. 

The primary source of the Blue Nile is the southern shore of Lake Tana, but a secondary source is a small spring at Gishe Abbai, at an altitude of approximately 6,000 feet, flowing together with several feeder streams into the Abbay River and thence into the lake.  The Abbay River, now the Blue Nile, leaves Lake Tana and flows south, then southeast through the Tis Issat Falls and rapids, and south again, where it is approximately 100 miles from the Rift Valley, a fact of some importance.  The river continues its journey southwest through a mile-deep gorge and canyon after which it takes a sinuous path west where it receives minor additional flow from the Little Blue Nile flowing from Ghish, flows northwest into the Sudan toward Khartoum.  During its transit of the Sudan, the river receives flow from two rivers that originate in the Ethiopian highlands: the Dinder and the Rahad Rivers. 

At Khartoum, the Blue Nile joins the White Nile to create the River Nile, which then flows north to empty into the Mediterranean Sea.           

The Ethiopian Rift Valley is a part of the Great Rift Valley.  It includes the Afar Region from the Djibouti-Ethiopian border southwest through the rift to the border with Kenya.  The rift separates the Northwestern and Southeastern Plateaus that form Ethiopia into two highlands parted by a deep, wide, almost impassible gorge.  The Blue Nile is in the Northwestern Plateau and so is at the 6,000 feet or so level of the plateau during its travel to the Sudan.  At the point where the river approaches within 100 miles of the rift valley, a potential exists for a future tragedy.  The rift valley is an unstable area, especially in the Afar Triangle, as demonstrated by the 2005 event.  It doesn’t take much imagination to visualize a future, similar event happening in this 100 mile area where the surface of the plateau would rupture and permit all or part of the Blue Nile to empty into the adjacent gorge of the rift valley. 

In his book, The Blue Nile, Alan Moorhead describes the contribution of water to the River Nile, by both the White and Blue Niles:  “The White Nile is a much longer river than the Blue.  Already at Khartoum, it has come two thousand miles from its source in Lake Victoria in Central Africa, and except for its passage through the great swamp of the Sudd in the south Sudan its banks are inhabited nearly all the way.  But the fall of the White Nile’s water over this vast distance has been barely 2,000 feet (compared to the Blue Nile’s  tumultuous drop of nearly 5,000 feet), and so it has a quite and sedate appearance.  Steamers and feluccas move about comfortably on its broad expanse of water.  It is very much the parent stream.  However, the real strength of the two rivers that now unite and lose their separate identity at Khartoum lies in the Blue Nile.  It provides six-sevenths of the total volume of water in the combined stream, and for six months of the year, it rushes down from the Ethiopian mountains with the effect of a tidal wave.  By June the force of this flood is so great that the White Nile is dammed back upon itself at Khartoum; it pauses, as it were, and stands back while the younger, livelier river pushes past carrying hundreds of thousands of tons of discolouring grit and soil to Egypt.  At last, in January, the tremendous rush subsides, and the White Nile begins to assert itself again.  Then at Khartoum you can see the two rivers flowing on quietly side by side in the same river bed and for a few miles there is a distinct dividing line between them on the surface of the water; the White Nile not precisely white but more nearly muddy grey, the Blue seldom absolutely blue except for certain moments at dawn and in the evening, but more of a brownish-green.”    

The effect of the previously described rupture diverting the Blue Nile from its passage to the Sudan would create havoc in a number of ways.  First, of course, 80-90 percent of the water volume of the River Nile would be lost to Egypt, whose economy is closely dependent upon maintaining a normal River Nile flow, the loss of the Blue Nile’s annual damming of the White Nile would affect boat transportation on the White Nile south of Khartoum and on the entire length of the River Nile, and the cascading flood of Blue Nile water into Kenya through the rift valley would exacerbate the already serious flood conditions in Kenya and possibly Tanganyika.  The solution, of course, is the construction of a dam, and possibly a canal, to prevent the water loss.  Unfortunately, a decision locating the new structures must await the disaster to guarantee proper placement.  In an alternate decision, a canal could be constructed beforehand, with gates to control water volume, from above Tis Issat Falls to the Little Blue Nile, bypassing the entire loop of the Blue Nile that approaches the rift valley.  Hereto are problems.  The proposed area of construction lies in very remote and primitive countryside. 

One last item to further confuse the reader and, so to speak, muddy the waters.  During the 1960s, an America survey team was at work investigating the resources of the Blue Nile and the massive gorge through which it flows.  One of the members of the team, in a separate study collected specimens of the silt of the Blue Nile and was unable to make anything grow in it.  This was very surprising since the Ethiopian silt was thought to be the silt upon which the River Nile and the fertility of Egypt depended for centuries.  It was evident that dry or wet, the soil is sterile.  It now appears that the Blue Nile supplies high-volume water flow and silt, but the White Nile adds thick slime-filled ooze, which makes the River Nile the fertile river it is.  The source of fertility is still a question that has not been satisfactorily answered and the research continues. 


The River Nile,  For many thousands of years the Nile has flowed north from Khartoum through the Sudan and Egypt, emptying into the Mediterranean Sea.  During its transit, it has deposited millions of tons of silt and fertilizing soils annually along its banks and on adjacent farmlands and additional tonnage of soil in the Mediterranean Sea forming a huge delta that has added acres of land to Egypt.

Historians credit Egypt with originating irrigation and taking advantage of the Nile flooding to support their efforts at cultivation.  Records show that the Egyptian farmers divided the Nile floodplain into a number of large basins separated by earth banks or berms, some as large as 50,000 acres.  During the periods of flood, the basins would be inundated with the silt-rich Nile floodwaters.  The waters would remain for up to six weeks after which they would drain away as the river level fell, leaving behind a deposit of rich Nile silt.  The farmers would then sow their crops in the waterlogged soil.  Under the basin system, farmers could only sow one crop per year, usually wheat or barley, and being totally dependent upon the river floods, were at the mercy of annual fluctuations in the size of the flood.  As technology improved the farmers’ lot, additional irrigation methods were employed, such as the shadoof, a counterbalanced lever device that uses a long pole to lift water from the river and swing it over the land to be irrigated.  The Persian waterwheel was also introduced, as was the Archimedean screw.  Initially, the farmer or his animals operated these devices.  Gradually, the basin method was replaced by a system of barrages and waterworks employing canals and dams, and more recently, mechanical pumps.  The revisions to the Egyptian irrigation methods permitted farmers to irrigate their fields as they needed, and so enable them to plant multiple crops of cotton, sugarcane or peanuts.        

Under both the basin system and the changes that followed, only a fraction of the Nile silt and sediment was diverted to farming.  Much of the suspended material continued north adding depth and acreage to the delta and, since prehistoric times, has contributed bulk and nutrients to the Mediterranean Sea as far east as the Levant coast. 

In 2002, Eduardo Garzanti of the University of Milan and Ahmed el Kammar of Cairo University reported a major change in the structure of the Nile sediment.  Prior to the construction of the High Aswan Dam, the Nile load was estimated at 40 million t/a.  Reassessing the effects of erosion caused by deforestation and intensive land use in the Ethiopian highlands and weathering in the southern Sudan swamps, they have re-estimated the sediment rate at 210-250 million t/a, a substantial increase over the earlier estimates.  Further, they found that the Blue Nile contributed 61% of the Nile River sediments and the River Atbara 36%, while all other sources only 3%.  This information is significant when the effects of the High Aswan Dam are considered, as will be done in the following section of this essay.

After the White and Blue Niles join at Khartoum and become the River Nile, the river continues its passage north, passing Omdurman as it leaves Khartoum.  Omdurman was the site of the final decisive battle in 1898 between the al-Mahdi native forces and a British-Egyptian army under the command of General Kitchener.  Al-Mahdi had terrorized the Sudan for eight years before being defeated.  An interesting sidelight is the fact that Winston Churchill was a journalist at the time and had just completed a stint covering the Boer War before being assigned to Kitchener’s campaign in the Sudan.

The stretch of river north of Khartoum is sometimes called the United Nile and includes a part from Khartoum to what will be Lake Nasser in 1960 and thereafter.  My discussion of the Nile, including Lake Nasser, will be covered in the next section of this essay.  This section will treat the river before the construction of the High Aswan Dam and the formation of Lake Nasser.  The 830-mile long United Nile flows through a dessert region receiving negligible rainfall but with some irrigation along its banks. 

Fifty miles below Khartoum, the river reaches the 6th cataract at Sablukah, the most distant cataract from the Mediterranean Sea.  Continuing northward, the river makes a big loop, first northeast to Barbar and the 5th cataract, then northwest to Abu Hamad, where it turns severely southwest past the 4th cataract to Kurti and Ab-Dabbah.  At Ab- Dabbah, it turns north past Dunqulah and the 3rd cataract and continues past the 2nd cataract to the Sudanese-Egyptian border.        

About 200-miles north of Khartoum, south of Barbar, the Nile receives the flow of the Atbara River, the last tributary of the Nile. The Atbara originates in the Ethiopian Plateau, north of Lake Tana at 6,000-10,000 feet above sea level near Gonder.  In turn, the Angereb and the Tekezo feed the Atbara.  The Atbara has properties similar to the Blue Nile, rising and falling rapidly in flood as a large, muddy river, but in the dry season deteriorates to a series of pools.         

In describing the passage of the Nile in the Sudan, I used geographic features of the land.  In Egypt, however, I have made liberal use of locations and features that have historical or architectural value to the discussion. 

Ignoring the High Aswan Dam and Lake Nasser, the Nile leaves the 2nd cataract and Sudan, traveling once again in a northeast direction past Abu Simbel, Amada, Kurteh, Dendur, Philae, the 1st cataract and Aswan.   This Aswan is not the location of the High Aswan Dam, but does have a smaller dam constructed between 1899 and 1902 with modifications through 1934 and locks for navigation. 

Dendur is the former location of the Temple of Dendur, which now resides in a special wing of the Metropolitan Museum of Art in New York City.  At its new site, the temple is located on a raised platform along a simulated Nile River with benches conveniently located.  Along one wall is an extensive history of the temple with the story of the two brothers honored and the facts related to the temple being gifted to the people of the United States from the people of Egypt.  

Past Aswan, the Nile reaches the area of the Valley of the Kings and Edfu, Gabelein, Luxor, Karnak and Dendereh, to name just a few of these historically rich sites.  A more detailed discussion of these archeological treasures may be found in my other essays on Tutankhamen and ancient Egypt. 

From Aswan to Cairo is about 500-miles.  The last 200-miles before Cairo, the Nile tends to favor the eastern shore and so most of the cultivated land will be found there.  In the Cairo area, Sakkarah, Memphis, Giza and, of course, Cairo is the dominant river features.  Beyond Cairo is the delta built mostly with 50-75 feet of silt from the Ethiopian Plateau.  The delta is immense, measuring 100 miles north to south, and about 155 miles from Alexandria to Port Said.  The seaward shore includes a number of brackish lagoons, salt marshes and lakes approximately 52 feet below Cairo.  Beyond the Delta is the Mediterranean Sea into which the Nile empties.


The High Aswan Dam  Aswan is a modest Egyptian city of less than 200,000 population, located on the east bank of the Nile less than 50 miles from the border with Sudan.  Between Aswan and the Sudanese border are two dams: the Aswan Dam and the High Aswan Dam. Aswan Dam construction was started in 1899 and completed in 1902 with a number of improvements through 1933 and was the first dam built on the Nile to store part of the autumn floodwaters for future use.  This dam also has four locks permitting navigation and 180 sluices that permit the passage of Nile silt to the farmlands of the north.  In time, it was found that the Nile flood waters would reach the top of the Aswan Dam and a decision would have to be made to once more extend the dam or replace it.  The age of the existing dam convinced the Egyptians that they were better off building a new dam south of the existing dam to reduce the stresses on the Aswan Dam and to transfer the biggest part of the workload to the new dam.  And so the idea for the High Aswan Dam was born around the end of World War II, but the dreamers could not anticipate the effect of politics on its construction.

In 1948, the newborn United Nations decided to convert the existing British mandate in Palestine to a new state for Israel survivors of the holocaust and for the Palestinians.  The Arab nations rose up it protest and attacked the new nation.  To the surprise and dismay of Egypt, Syria, Jordan and others, the Arab armies were defeated. 

Around 1952, Egypt decided to construct the High Aswan Dam and in 1954 submitted requests for loans from the World Bank.  Concurrently, Egypt negotiated an agreement with the United States to provide technical assistance and additional funding.  The agreement included a provision that the United States would conduct a feasibility study for review by the Egyptian consortium prior to commitment for construction.  In addition, Egypt decided to reduce anticipated loans by nationalizing the Suez Canal, a decision that did not set well with England and France.

The nationalization of the Suez Canal in 1956 by Egypt resulted in Egypt being attacked by England and France with Israel joining in the fray.  Outside interests intervened and the war ended with Egypt in total control of the Suez Canal.  During this same period, the United States submitted a negative feasibility study, advising the Egyptians against building the high dam, and withdrew its offer of financial aid.  Egypt was outraged and approached the USSR for help.  Since the end of World War II, the United States and the Soviet Union were involved in a cold war that had many hot spots.  The Soviet Union was only too glad for the opportunity to tweak the nose of the U.S. and agreed to assist Egypt.  However, their offer of help came with many long strings.  They agreed to provide technical and financial aid, but insisted that they also provide technical ‘assistants’ who would live in Egypt and be paid and supported by Egypt.  Material and equipment (other than material available locally), would be purchased from the USSR through on-site representatives of USSR companies, and finances would be arranged through USSR banks.    

The USSR also advised Egypt that the Egyptian armed forces would be “upgraded” to USSR standards by a staff of military officers and advisors from the USSR and that military equipment, such as MIG fighters, heavy tanks and support equipment would be sold to Egypt to replace the “antiquated” equipment now used by the Egyptian armed forces.  Additionally, contracts would be negotiated for replacement and spare parts and supplies. 

The construction of the High Aswan Dam began, and in 1965, Gamal Abdel Nasser became president of Egypt. 
During the following two years, the USSR made certain that the Egyptian armed forces were rebuilt in the Soviet image.  In 1967, Nasser, his eyes sparkling with dreams of empire with his new powerful army, transferred tens of thousands of his newly equipped troops to the Sinai Peninsula on the border with Israel.  Syria followed suit on Israel’s northern border.  With the high dam almost completed, Egypt and Syria, with the general logistics support of the Arab nations and the Soviet Union, launched the 1967 6-day war in anticipation of a quick and decisive victory.

Israel monitored the huge military buildup on its borders and in anticipation of the pending Arab attack; Israel struck the Egyptian air force and destroyed the greater part on the ground.  The Egyptian armored forces were encircled and decimated in the Sinai before they were able to move into Israel.   In a desperate effort to save what they could, the Egyptian high command ordered a general retreat, but before they could leave Sinai and return intact to Egypt, their army was surrounded and captured by Israel forces.  Unable to care for so many captives, Israel escorted the unarmed lower rank prisoners to the Suez Canal and set them free, directing them to return to Egypt.  Only the Egyptian officers were confined.  Syria suffered equally at the hands of Israel.  The 1967 6-day war was a total disaster and a humiliating defeat for the Arabs.  In public statements after the debacle, Nasser insisted that Egypt and Syria had lost the war only because the United States and England, operating from carriers in the Mediterranean Sea, had participated in the war and assisted Israel in their unprovoked attack.  As late as 2007, 40-years later, the general populations of the Arab nations still believed this fiction to be the real reason for their loss. 

Later, in 1967, at a meeting of Arab nations in Sudan, Nasser refused to consider any negotiations with Israel.  In addition, the U.N. had decided to turn on Israel; siding with the Arabs and issuing Resolution 242 ordering Israel to withdraw from the “occupied lands,” while totally ignoring the facts of the Arab attack.  Meanwhile, the Soviet Union had started to replenish the military equipment lost by Egypt and Syria. 

By 1970, the High Aswan Dam was completed and formally inaugurated in January 1971.

The perceptive reader may have noticed that though the United States had withdrawn its offer to assist in the construction of the High Aswan Dam after completion of the feasibility study, no mention was made in this essay of the content of the study nor were any reasons given by the writer for the withdrawal.  This was not an oversight.  Very little information of this nature was found during research.  It can only be assumed that in the preparation of the study, the U.S. investigators uncovered possible major faults in the dam’s design or location that cautioned against construction.  In the pages following, a number of deficiencies in the dam’s design and operation are enumerated and explained based on post-construction studies and evaluations conducted by other than the United States, some or all of which may have also formed part of the U.S. feasibility study.    

Gamal Abdel Nasser died while president in 1970 and Anwar Sadat assumed the presidency.

Still smarting from their 1967 defeat and completely rearmed by the USSR with modern Soviet weapons, Egypt and Syria plotted yet another attack against Israel, confident of the support of Arab world governments and populations. They waited for the Jewish holy holiday of Yom Kippur in 1973, and launched a fourth attempt to conquer Israel.  .  The attack was unexpected and caught Israel by surprise.  The Arabs made initial gains using heavy logistic and strategic satellite support from the Soviet Union.  The U.S. increased their logistics support to Israel and Israel recovered, crossing the Suez Canal, trapping the Egyptian army in Sinai, and marching on Port Said.  Concurrently, Israel moved through the Golan Heights of Syria and advanced on Damascus.  Alarmed over the turn of events and seeing their surrogates facing another major defeat by Israel, the Soviet Union threatened to enter the war, going so far as to paint Egyptian markings on the Soviet aircraft.  The United States, not wanting to risk a possible broadened war, intervened and convinced Israel to enter into a cease-fire with Egypt and Syria. 

At the conclusion of the Yom Kippur War, Israel had conquered Sinai, Gaza, the Golan Heights and the West Bank to the chagrin of the Soviet Union who had supplied all of the armaments, and the many Arab states that had helped finance the four wars with Israel.  

During the first few years of operation of the High Aswan Dam, the major benefits sought by Egypt appeared to have been achieved.  Hydroelectric power generation was up sharply and floodwaters were being regulated and were under control.  But, was all as it appeared?  Questions and doubts began to surface.  Complaints from the Egyptian farmers over increased irrigation and fertilization costs were being raised.  Sudan was complaining that their share of the water rights was in violation of a 1959 treaty.  They also were upset that other decisions affecting Sudan were made by Egypt without Sudan being consulted, suggesting that Egypt was treating them as a vassal state dating back to when Sudan and Nubia were part of Egypt.  Ethiopia, the home of the Blue Nile, annoyed that Egypt had not consulted with them before constructing the dam, had initiated studies into diverting Blue Nile waters for their own use and was threatening to reduce the flow into the Sudan.  The latter was a serious threat to the Egyptian economy, not to be taken lightly. It would appear that Egypt had substituted many new problems for old. 

The dam was constructed over a period of ten years at a cost of about one billion American dollars.  Physically, the dam is 364 feet high, has a crest length of 12,562 feet, a volume of 57, 940,000 cubic yards, and impounds a reservoir (Lake Nasser) of 137 million acre-feet (169 billion cubic meters).  Negotiations between Egypt and Sudan resulted in the allocation of the discharge of approximately 74 billion cubic meters to Egypt (55.5 billion cubic meters) and Sudan (18.5 billion cubic meters).  The dam has added about 1.8 million acres of irrigated land to Egypt’s cultivable area and converted about 730 thousand acres of land from basin to perennial irrigation.  Lake Nasser, the second largest man-made lake in the world, has an enormous storage capacity of more than 40 cubic miles and a potential maximum surface area of 2,600 square miles.  Its vast size has permitted Egypt to stock it with fish and create a bonus fishing industry of about 100,000 tons of fish per year.  About 17% of Lake Nasser extends 125 miles into Sudan.  A not inconsiderable benefit provided by the dam is its hydroelectric plant with an installed capacity of 2,100 megawatts. 

These achievements were not without major non-financial costs.  Ninety thousand Egyptian peasants (fellahin) and Sudanese Nubian nomads had to be relocated.  Fifty thousand Egyptians were transported to the Kawm Umbu valley, 30 miles north of Aswan to form a new agricultural community called Nubaria.  The Sudanese Nubians, however, were relocated 370 miles from their homes in a location called Khashm al-Qirbah.  The 300-foot estimated depth of Lake Nasser threatened many precious artifacts as the lake backed up during construction of the dam.  An international consortium was formed led by the United States to salvage what treasures could be saved.  Most important was the costly moving of Abu Simbel from its centuries-long original location along the Nile to a new location high on the cliffs above Lake Nasser.  In recognition of the participation of the United States in saving Abu Simbel and other ancient temples and artifacts, Egypt donated the Temple of Dendur to the U.S.  The temple now resides in a special wing of The New York Metropolitan Museum of Art in New York City.

Having resolved their differences with Sudan, Egypt found even greater problems with Ethiopia.  The Ethiopians felt that since their Blue Nile provided almost ninety percent of the flow to Egypt’s Nile, Egypt should have consulted with them and coordinated the construction of the dam.  They complained that Lake Nasser was primarily a Blue Nile lake that benefited Egypt and Sudan, but not Ethiopia.    Perturbed over being ignored by Egypt, they initiated the preparation of Integrated Resources Development Master Plans (IRDMP) for all the river basins of Ethiopia, as they put it, “…to protect and conserve their natural resources.”  They have since submitted a request to the World Bank for financing the preparation of a Small-scale Irrigation Development Project that, obviously, would precede construction – a decision that has irritated Egypt. 

Concurrently, Eritrea noted that the waters feeding the Nile are a key natural resource originating in both Eritrea and Ethiopia.  Though they have not taken full advantage of this resource, both Eritrea and Ethiopia are “water stressed.” 
Eritrea is currently constructing a number of small dams using Nile water for irrigation.  They go on to say, “But we are afraid this will anger Egypt, the most powerful nation in the region.  We seek ways to peacefully share our common resource and to enhance our environment.”  Then they continue with recognizing the risks being taken by the Ethiopian government relative to the diversion and use of Blue Nile water.

The Eritrea concerns are well founded.  In his report on the hydro-politics of the Blue Nile, Daniel Kendie of the Michigan State University Press had this to say:

                “Since concern with the free flow of the Nile has always been a national security issue for
                Egypt, as far as the Blue Nile goes it has been held that Egypt must be in a position either
                to dominate Ethiopia, or to neutralize whatever unfriendly regime might emerge there.  As
                the late President Sadat [President Sadat was assassinated after he entered into a negotiated
                peace agreement with Israel] stated ‘Any action that would endanger the waters of the Blue
                Nile will be faced with a firm reaction on the part of Egypt, even if that action should lead
                to war.’ “
Egypt has never withdrawn or amended this position.  In a contribution to Project Muse on northeast African studies, in 1999 an anonymous author contributed additional material to the Kendie position:
               
                “In this respect, an acute observer of the Egyptian scene recently wrote: Egypt is a country
                that has not abandoned its expansionist ambitions.  It regards its southern neighbors as its
                sphere of influence.  Its strategy is essentially negative: to prevent the emergence of any
                force that could challenge its hegemony, and to thwart any economic development along
                the banks of the Nile that could either divert the flow of the water, or decrease its volume. 
                The arithmetic of the waters of the Blue Nile River is, therefore, a zero-sum game, which
                Egypt is determined to win….”

The waters of the Nile River are more than just a large flowing stream.  The waters feed a narrow strip of irrigated
land, which, with the delta, is Egypt.  In one respect, Ethiopia has more control over Egypt’s economy through the Blue Nile, than Egypt does.  About 96 percent of Egypt’s population occupies a narrow strip of land within twelve miles of the river, a strip that is only four percent of Egypt’s land.  Ninety-six percent of the land is arid desert.  Were it not for the Nile River and its sediment…the grand civilization of ancient Egypt probably would never had existed.”

With the Nile River water barely adequate to service Egypt’s current needs, Egypt has announced a new program, the New Valley Project.  They plan to transfer 5 billion cubic meters of Nile water from Lake Nasser through the Western Desert to the New Valley.  As they state, “Seven million people will be persuaded to move away from the Nile to live in this new agricultural area.” (Emphasis added)  They go on to state, “This project is very expensive, and the Nile may not provide enough water.  Although in the past Egypt’s official policy was to maintain a monopoly on Nile water, today we wish to cooperate to equitably distribute the river resources to bring stability to the region and to promote economic development.  We also need help in monitoring the effects of our water development projects on the environment.”  With their announcement, Egypt has created more doubt in the minds of the governments of Ethiopia, Eritrea and Sudan and has exacerbated what previously was a very dangerous political path.        

Bad as it sounds, it gets worse.

The Russian design of the High Aswan Dam anticipated and provided for an annual silting of the dam and Lake Nasser at an estimated 40 million tons per year, a silting rate that was based on the annual Nile floods for many past years.   Silting is one of the results of restricting the normal flow of a river with a dam.  The old Aswan dam did not silt, as does the new dam; it permitted passage of the soil that farmers used to fertilize their fields in the north.  In the 2002 Garzanti study discussed earlier in this essay, the Italian author corrected this erroneous silting number from 40 to 210-250 million tons of silt per year, an increase of from 525% to 625%.  The maximum capacity of Lake Nasser is stated as a design total of 169 billion cubic meters.  It would take more than an average lifetime for the dam to silt up if the old rate was correct.  Dr. Garzanti, however, in demonstrating through actual measurement that the real silting rate is 5-6 times the old rate, shows us that the design is faulty and the dam will silt in ten years what the designers had estimated would take 50 to 60 years.  What does this mean to future water use?  As the dam ages and silting advances at the accelerated rate, the volume of Lake Nasser will be severely reduced and there will be less water available in storage for most years and especially for years of drought.  It is under this reduced water availability that Egypt has proposed the New Valley Project with its increased water needs. 

With Egypt planning greater use of Nile water, despite its own admission that there might not be enough water to service their plans, with Eritrea constructing a number of small irrigation dams, with Ethiopia entering into a planning state for the future diversion of Blue Nile water, the future availability of Nile water is bleak.  The effect on the Egyptian economy is predictable and from the past statements of the Egyptian government on their rights to the Nile River waters, the reaction of the Egyptian government to the actions of Ethiopia and Eritrea is equally predictable.                

As serious as the described international problems are, Egypt’s domestic problems related to the dam are easily as bad and possibly worse. 

The construction of the dam permitted Egypt to control and regulate the flooding of the Nile north of Aswan.  It also provided Egypt with the means of establishing a reserve water supply in Lake Nasser to guarantee river flow during years of drought.  With these positive benefits came a price.  The farmers no longer were able to fertilize their fields with the silt and sediment from the annual Nile floods, as they had done for centuries.  Instead, they were forced to purchase and use about a million tons of artificial fertilizers as a substitute for the fertile soil once deposited by the river.  The increase in irrigated land permitted by the new dam has suffered from poor drainage, which has led to increased salinity.  As a result, over one-half of Egypt’s farmland is now rated as having medium to poor soils with reduced output.     

The reduced flow of the Nile and the practical elimination of the river’s sediments have affected more than just the farming community.  Downstream soil replenishment has been severely reduced and together with the reduced flow of river water to the Mediterranean Sea, has permitted salt water to enter into and inundate the lower reaches of the river while reducing the flow of nutrients to the sea.  The delta has started to accumulate salt, the creation of Lake Nasser has caused the water table along the river to rise with increased pressure, some areas have shown increased soil salinity, the offshore fish population of the eastern Mediterranean has reduced dramatically without the river supplied nutrients, the silt-free water below the dam has caused erosion of the downstream barrages and bridge foundations and has caused coastal erosion in the delta.  Without the annual floods and with the river providing only a controlled irrigation, a parasitic disease (schistosomiasis), associated with the stagnant water of the fields and the reservoir, has increased.

When the dam was built it was assumed that the continuous annual flow into the Nile from the Lake Victoria basin and the Ethiopian highlands would fill and maintain Lake Nasser.  Long before the lake had reached its maximum area and depth, the Egyptian engineers noticed a slowdown in the lake’s growth.  Ultimately, the lake stopped growing and its size became relatively static.  Subsequent investigations found that the large area of the lake was evaporating a quantity of water equal to the input from the Nile south of the dam.  Without added water, the dam would grow no larger.  Efforts made to reduce the evaporation were unsuccessful.  One such attempt called for a major part of the lake to be covered with a thin film to reduce the area subject to evaporation.  With the lake now limited to a volume considerably less than design, and with 5-6 fold increase in the silting rate, Egypt found additional water losses through seepage.  The latter was not a serious a problem since any seepage from the dam would add to the downstream flow and could be included in the engineer’s calculations when releasing water from the dam. 

Another problem that developed was with power generation.  The dual purpose of the dam was irrigation and hydroelectric power generation.  The dam more than met the power generation requirements of the design.  The failure was with the engineer’s inability to control the use of the generated power.  They treated the power generated as inexhaustible, which it wasn’t.  The dam was constructed with 12 hydro-generators each rated at 175 megawatts, with a total output of 2.1 gigawatts.  By the 1980s, the dam was providing half of Egypt’s electricity.  The dam increased Egypt’s total installed generating capacity to 16.6 gigawatts up from 3.8 gigawatts in 1976.  With the continued increase of thermal power plants in Egypt, the percentage contribution by the dam has dropped to less than 13 percent.  The problem is that Egypt is now using relatively cheap hydroelectric power for only one quarter of what it was using 20 years before and is depending more on thermal plants using oil, gas or coal.  Their total power capacity is estimated to be about 26 gigawatts in another three years.  So, the dam will be contributing about 8.1 percent of Egypt’s requirements by 2010, down from about 50 percent in 30 years, with the added electric power needs being supplied with the more expensive thermal plants.  Nuclear powered plants have never been considered.             

Excerpts from the Garzanti report summarize the major problems: “Until construction of the Aswan High Dam…, the Nile represented the major source of sediment to the eastern Mediterranean Sea….In the past, fertile volcanic muds carried by summer floods of the Nile have brought prosperity to Egyptian dynasties.  Today, the river is increasingly vital to a rapidly growing population exceeding 100 millions, but it is facing a number of environmental problems caused by extensive exploitation of its territory and resources.  Deforestation and intensive land use on Ethiopian highlands led to accelerated erosion and loss of arable soil, while dams built in Egypt and Sudan for flood regulation, water supply and hydropower virtually stopped sediment transport to the sea.  Rather than on the delta and fan, huge volumes of sediment accumulate today in reservoirs, resulting in rapid loss of storage capacity on one side, and in ravaging erosion of deltaic cusps on the other.  Only a greater knowledge of the river system and its natural equilibria can help improve watershed and coastal management, and thus mitigate undesirable impacts of human activities.”

The interference of man with nature may have serious consequences if not carefully reasoned before taking action.


Bibliography

Anonymous.  Blue Nile.  Wikipedia, the free encyclopedia.  http://en.wikipedia.org/wiki/+Blue_Nile

Anonymous.  Environmental Impact of the Aswan High Dam.           http://www.mbarron.net/Nile/envir_nf.html 

Anonymous.  Irrigation Along the Nile.  http://www.factmonster.com/ce6/world/A0860007.html 

Anonymous.  The Route from Lake Tana to the Sea.  http://www.niletrip.com/route.html  April 12, 2007.

Anonymous.  Blue Nile Gorge:            http://www.ucmp.berkeley.edu/mesozoic/bluenile/blue1.html 

Encyclopædia Britannica Ultimate Reference Suite 2006 CD. April 13, 2007, unless otherwise noted.
                Africa: African Geographic Features (Selected Sections).
                Albert Nile                                                     
               Blue Nile River.

                Kagara River. 
                Lake Nasser
                Nile River
                The Sudan: Physical and Human Geography
                Victoria Nile.
                White Nile River.   

                Aswan Dam
                Aswan High Dam
                Bahr al-Jabal.
                Bahr al-Arab.
                Bahr al-Ghazal.
                Bahr az-Zaraf. 
              
Garzanti, Eduardo, et al.  “Petrology of Nile River Sands,” abstract from Earth and Planetary Science          Letters 252 (2006) 327-341. Milan, Italy: Laboratorio di Petrografia del Sedimentario, Diparti     mento di Scienze Geologiche e Geotecnologie, Universita di Milano-Bicocca.  2006. 

Ghista, Garda.  Cost-Benefit Analysis of the Aswan Dam.  http://www.proutworld.org/features/nile.htm 

Kendie, D.  Egypt and the Hydro-Politics of the Blue Nile River. Michigan State University Press, 1999.

Moorehead, Alan.  The Blue Nile   London: Hamish Hamilton Ltd., 1962.

Moorehead, Alan.  The White Nile.  New York: Harper & Brothers.  1960.

NASA.  Earth Observatory Feature: Lake Victoria’s Falling Waters, Page 2. 

Parsonage, Samuel.  The Nile River.  http://parsonages.users1.50megs.com/NileRive.htm


Saad, M.B.A.  Nile River Morphology Changes Due to the Construction of High Aswan Dam in Egypt.  (Ministry of Water Resources and Irrigation) Cairo: Egypt. 2002

United Nations Environment Programme.  Water Sharing in the Nile River Basin.  UNEP/DEWA/GRID-Europe          Nile River Basin project 1998-2007.  http://www.grid.unep.ch/activities/sustainable/nile/

No comments:

Post a Comment