COMILOG Cableway

Last updated

The COMILOG Cableway was one of the longest cableways in the world, until its closure in 1986. [1] The ropeway conveyor ran for 76 km from Moanda in the Haut-Ogooué Province of south eastern Gabon to Mbinda in the Republic of Congo.

Ropeway conveyor

A ropeway conveyor or material ropeway is essentially a subtype of gondola lift, from which containers for goods rather than passenger cars are suspended.

Moanda Place in Haut-Ogooué Province, Gabon

Moanda is one of the largest towns in Gabon, lying on the N3 road in Haut Ogooué. It is also one of the most important manganese mining towns in the world, under the auspices of the Compagnie Minière de l'Ogooué (COMILOG), which began mining in 1957. Moanda has a population of around 39,298 inhabitants and is the second largest city in the Haut Ogooué Region, after Franceville. It is also a border town, lying 100 km away from the border with the Republic of Congo.

Haut-Ogooué Province Province in Gabon

Haut-Ogooué is the southeastern-most of Gabon's nine provinces. It is named after the Ogooué River. It covers an area of 36,547 km². The provincial capital is Franceville. One of its primary industries is mining, with manganese, gold and uranium being found in the region. The uranium-bearing mineral Francevillite takes its name from the primary city. It is the historical home of three cultures, the Obamba, Ndzabi and Téké. Like many regions in Africa, more traditional uses of the land have given way to rural migration to the larger cities. In August 2006, its soccer club won the Gabon Independence Cup.

Contents

In 1954, the Compagnie Minière de l'Ogooué (COMILOG), a French-American company formed the previous year, decided to begin mining manganese in the Gabonese town of Moanda. The town lay deep in the rainforest, and export of the metal was a problem. The nearest reliable transport route was the Congo-Ocean Railway, but this lay more than 250km away, across difficult terrain. George Perrineau was charged with constructing a transport link between the two. [2]

Mining The extraction of valuable minerals or other geological materials from the earth

Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.

Manganese Chemical element with atomic number 25

Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

Rainforest type of forest with high rainfall

Rainforests are forests characterized by high rainfall, with annual rainfall in the case of tropical rainforests between 250 and 450 centimetres, and definitions varying by region for temperate rainforests. The monsoon trough, alternatively known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earth's tropical rainforests.

It was decided to construct a cableway from Moanda to Mbinda, and then branch of the Congo-Ocean Railway to Mont Bello, from which the existing railway would link to the port of Pointe-Noire. [3] The conveyor was routed via the small town of Bakoumba, which became the centre for the maintenance of the structure. [4] The mine opened in 1957, and the Cableway was opened in 1959, the link finally being completed when the Congo-Ocean Railway branch opened in 1962. [3]

Port maritime commercial facility

A port is a maritime commercial facility which may comprise one or more wharves where ships may dock to load and discharge passengers and cargo. Although usually situated on a sea coast or estuary, some ports, such as Hamburg, Manchester and Duluth, are many miles inland, with access from the sea via river or canal.

Pointe-Noire Department in Pointe-Noire Department, Republic of the Congo

Pointe-Noire is the second largest city in the Republic of the Congo, following the capital of Brazzaville, and an autonomous department since 2004. Before this date it was the capital of the Kouilou region. It is situated on a headland between Pointe-Noire Bay and the Atlantic Ocean. Pointe-Noire is the main commercial centre of the country and has a population of 715,334 (2007), expanding to well over 1 million when the entire metropolitan area is taken into account.

Bakoumba Place in Haut-Ogooué Province, Gabon

Bakoumba is a town in south eastern Gabon with a population of around 2,500 - 3000 people. It lies south west of Moanda and was the headquarters for the COMILOG Cableway, carrying manganese from Moanda to Mbinda in Republic of Congo. The cable car closed in 1986.

The Cableway consisted of ten sections, and had 858 supports of between 5 and 74m in height. [5] One tonne cars carried the manganese twenty-four hours a day. [6]

The government of Gabon was keen to ship the valuable manganese ore through its own ports, and routed a new railway, the Transgabonais, from the national capital Libreville to Moanda, and on to Franceville. When this opened, in 1986, the cableway was closed. While Moanda continued to prosper, Bakoumba and Mbinda suffered from the withdrawal of their main industry. COMILOG funded the creation of the Lékédi Park at Bakoumba to encourage the development of a tourist industry, [6] but some groups in Congo felt that unemployment there was not addressed. [3]

Libreville Place in Estuaire Province, Gabon

Libreville is the capital and largest city of Gabon, in western central Africa. The city is a port on the Komo River, near the Gulf of Guinea, and a trade center for a timber region. As of 2013, its census population was 703,904. The area was originally inhabited by the Mpongwé tribe before the French acquired the land in 1839. In 1846, a Brazilian slave ship was captured by the French navy assisting the British Blockade of Africa, and fifty-two of the freed slaves were resettled on the site. It became the chief port of French Equatorial Africa from 1934 to 1946, and was the central focus of the Battle of Gabon in 1940. Libreville was named in imitation of Freetown, and grew slowly as a trading post and a minor administrative centre, reaching a population of 32,000 on independence in 1960. Since independence, the city has grown rapidly and now houses nearly half the national population. It is home to a shipbuilding industry, brewing industry, and sawmills, and exports raw materials such as wood, rubber and cocoa.

See also

Related Research Articles

Modes of transport in Gabon include rail, road, water, and air. The one rail link, the Trans-Gabon Railway, connects the port of Owendo with the inland town of Franceville. Most but not all of the country is connected to the road network, much of which is unpaved, and which centres on seven "national routes" identified as N1 to N7. The largest seaports are Port-Gentil and the newer Owendo, and 1,600 km of inland waterways are navigable. There are three international airports, eight other paved airports, and over 40 with unpaved runways. Nearly 300 km of pipelines carry petroleum products, mainly crude oil.

Aerial tramway Aerial lift in which the cars are permanently fixed to the cables

An aerial tramway, sky tram,cable car, ropeway or aerial tram is a type of aerial lift which uses one or two stationary ropes for support while a third moving rope provides propulsion. With this form of lift, the grip of an aerial tramway cabin is fixed onto the propulsion rope and cannot be decoupled from it during operations.

Gondola lift a type of aerial lift in which cabins are supported and propelled by cables, but where the cabins are not permanently fixed to the cables

A gondola lift is a means of cable transport and type of aerial lift which is supported and propelled by cables from above. It consists of a loop of steel cable that is strung between two stations, sometimes over intermediate supporting towers. The cable is driven by a bullwheel in a terminal, which is typically connected to an engine or electric motor. They are often considered continuous systems since they feature a haul rope which continuously moves and circulates around two terminal stations. Depending on the combination of cables used for support and/or haulage and the type of grip, the capacity, cost, and functionality of a gondola lift will differ dramatically. Because of the proliferation of such systems in the Alpine regions of Europe, the French language name of Télécabine is also used in an English language context.

Aerial lift Cable transport in which passenger containers are hauled above the ground by means of one or more cables

An aerial lift (US), also known as a cable car, is a means of cable transport in which cabins, cars, gondolas or open chairs are hauled above the ground by means of one or more cables. Aerial lift systems are frequently employed in mountainous territory where roads are relatively difficult to build and use, and have seen extensive use in mining. Aerial lift systems are relatively easy to move, and are and have been used to cross rivers and ravines. In more recent times, the cost-effectiveness and flexibility of aerial lifts has seen an increase of gondola lift being integrated into urban public transport systems.

Trans-Gabon Railway railway in Gabon

The Trans-Gabon Railway is the only railway in Gabon. It runs 670 km east from Owendo port station in Libreville to Franceville via numerous stations, the main ones being Ndjolé, Lopé, Booué, Lastoursville and Moanda.

Dolisie Place in Niari Department, Republic of the Congo

Dolisie, known as Loubomo between 1975 and 1991, is a city in the western province of Niari in the Republic of the Congo. It is the country's third largest city, and an important commercial centre. The city lies on the eastern edge of the coastal rainforest, and has a population of 83,798.

Mbinda Place in Niari Region, Republic of the Congo

Mbinda is a town in the Republic of Congo, lying on the border with Gabon. It is a transport hub and lies at the end of a railway line to Brazzaville.

Congo–Ocean Railway public railway company in Republic of Congo

The Congo–Ocean Railway links the Atlantic port of Pointe-Noire with Brazzaville, a distance of 502 kilometres (312 mi). It bypasses the rapids on the lower Congo River; from Brazzaville, river boats are able to ascend the Congo River and its major tributaries, including the Oubangui River to Bangui.

Norsjö ropeway

Norsjö aerial tramway is a 13.2 kilometre long aerial tramway between Örträsk and Mensträsk in the Norsjö Municipality in Sweden.

Railway stations in the Republic of the Congo (Congo) include:

Kristineberg, Lycksele Place in Lapland, Sweden

Kristineberg is a locality situated in Lycksele Municipality, Västerbotten County, Sweden with 257 inhabitants in 2010.

Gabon was the richest of the former French Equatorial African colonies in known mineral deposits. In addition to oil, which accounted for 80% of the country’s exports in 2004, Gabon is a world leader in manganese. Potash, uranium, niobium, iron ore, lead, zinc, diamonds, marble, and phosphate have also been discovered, and several deposits are being exploited commercially. Ownership of all mineral rights is vested in the government, which has increased its share of the profits accruing to foreign companies under development contracts.

The Bangombe Plateau is a plateau covering 42sq.km in the north of Moanda, in the Haut Ogooue Region of Gabon. Exploitation of manganese deposits started on the plateau in 1953 by the Compagnie Minière de l'Ogooué (COMILOG).

Mining in the Republic of the Congo

Oil and gas dominate the extraction industries of the Republic of the Congo, also referred to as Congo-Brazzaville. The petroleum industry accounted for 89% of the country’s exports in 2010. Among African crude oil producers in 2010, The Congo ranked seventh. Nearly all of the country's hydrocarbons were produced off-shore. The minerals sector is administered by the Department of Mines and Geology. Presently no major mining activities are underway, although there are some small-scale domestic operations. However, the country does have numerous large-scale undeveloped resources. The country has recently attracted a strong influx of international companies seeking to tap into the vast mineral wealth.

Compagnie minière de lOgooué

The Compagnie minière de l'Ogooué, or COMILOG, is a manganese mining and processing company based in Moanda, Gabon. It is a subsidiary of the French metallurgical group Eramet. The company is the world's second largest producer of manganese ore. At first the ore was carried by a cableway to the border with the Republic of the Congo, then by rail to the sea at Pointe-Noire. In the 1980s a railway was built to carry the ore through Gabon to the sea near Libreville.

References

  1. www.linbanan.com website: the world's longest was the 96 km long Norsjö aerial tramway which operated 1943 to 1987 in Sweden.
  2. Jacques Peccia-Galleto and Paul Gadilhe, Georges Perrineau: l'aventure de l'industrie minière en France et à l'etranger (in French) [George Perrineau: Adventure in the Mining Industry, in France and overseas]
  3. 1 2 3 Ya Sanza, Dossiers spéciaux: COMILOG (in French) [Special Dossier: COMILOG]
  4. Elsa Bembaron, Eramet cultive les pleurotes au Gabon (in French) [Eramet cultivates the pleurotes in Gabon]
  5. Seilbahnen (in German) [Cable cars]
  6. 1 2 Bakoumba et la SODEPAL (in French) [Bakoumba and SODEPAL]