Trans-Gabon Railway

A railway crossing Gabon was first mooted during the colonial period, with proposals advanced as early as 1885 and periodically revived during French Equatorial African rule.^[12][13] None of these schemes was acted upon, and until the 1970s Gabon possessed no railway of its own, relying instead on the Ogooué River and on the Congo–Ocean Railway in neighbouring Moyen-Congo (later the Republic of the Congo) for bulk exports.

From the 1950s the manganese deposits at Moanda were exploited by COMILOG, founded in 1953 with U.S. Steel as a significant shareholder. Lacking rail access inside Gabon, the company constructed the 76 km (47 mi) COMILOG Cableway, which at the time of its commissioning in 1962 was among the longest aerial ropeways in the world; it linked Moanda with the railhead at Mbinda in Moyen-Congo, whence ore was forwarded by the Congo–Ocean Railway to Pointe-Noire for export.^[14] Reliance on a foreign corridor for the country's principal mineral export was politically unsatisfactory and became a central argument for building a Gabonese railway.^[7]

Feasibility studies were undertaken in 1968 under President Léon M'ba and his successor Omar Bongo.^[6][7] The project was formally launched by Bongo at Owendo on 30 December 1973 following the October 1973 quadrupling of world oil prices, which transformed Gabon's public finances and furnished the state with the means to pursue a showpiece infrastructure project without multilateral support.^[4][5] The World Bank had refused in 1973 to co-finance the scheme on the grounds that it was not economically viable, a judgement that would be echoed by subsequent critics.^[4][5]

The decision to build the railway was, in Bongo's own terms, political as much as economic: addressing the need to evacuate Moanda's manganese by a national route, to open up the thinly populated eastern provinces, and to reduce Gabonese dependence on an external corridor running through the Republic of the Congo.^[7][5] According to political scientist Douglas Yates, whose study *The Rentier State in Africa* remains the standard academic treatment of Gabon's oil-era political economy, the Transgabonais epitomised both the developmental ambition and the patrimonial logic of the Bongo regime, with the route selected to pass through the president's native Haut-Ogooué region.^[7][4]

Originally the line was to terminate at Makokou in the north-east, whence a branch was to serve the Bélinga iron-ore deposits.^[7] The alignment was subsequently redrawn to run south-east to Franceville via Moanda so as to capture the manganese traffic then carried by the COMILOG Cableway; when the railway reached Moanda in the mid-1980s, the cableway was duly closed.^[14][12]

The choice of standard gauge (1,435 mm) rather than one of the narrow gauges common in colonial-era African railways reflected the fact that the line was conceived and built in the era of heavy earth-moving machinery, so the traditional cost savings of narrow gauge had become marginal, and the use of standard-gauge track permitted the procurement of off-the-shelf European and American rolling stock.^[12][15]

Financing was assembled piecemeal. Besides direct expenditure from the Gabonese oil budget, loans and aid were provided by France, West Germany and several international organisations.^[16] In 1979 and the early 1980s, as cost overruns mounted, additional financing was provided by a British-led consortium following the discovery of commercially significant uranium deposits; the Thatcher government saw strategic value in underwriting continued work, and British expatriate personnel and contractors – including Taylor Woodrow and staff seconded from Wimpey International – joined the site.^[5] Around May 1983 a new funding and management vehicle, CCI Eurotrag, grouping British, Italian and West German interests, took over responsibility for the eastern sections of the project.^[5][17]

Civil works began in October 1974. The civil-engineering consortium drew in Impregilo and Astaldi of Italy, Philipp Holzmann of West Germany, and the French companies Constructions et Entreprises Industrielles (CEI) and Entreprise de Construction Franco-Africaine (ECFA).^[12][13] At the peak of construction in the early 1980s, some 3,400 Gabonese workers and 400 expatriate specialists were deployed alongside more than 120 bulldozers, 450 heavy trucks and a purpose-built track-laying machine nicknamed "the dinosaur", carving a 90-metre-wide right of way through primary equatorial rainforest.^[5]

According to figures compiled by the engineering firm Evolutio, which archives the participation of Italian contractors in the project, the works ultimately involved some 45 million m³ of earthworks, 758 km of track laid (including yards, sidings and branches), 19 stations and 29 iron- and reinforced-concrete railway bridges with a combined length of around 4,000 m.^[12] The most significant engineering structures are the Juckville Tunnel, the viaduct across the Abanga swamp between Ndjolé and Booué, and the combined bridge over the confluence of the Ogooué and Ivindo rivers near Booué; the line crosses the Ogooué five times in all, at Franceville, at Ndjolé, three times near Booué and, on a girder bridge, east of Lastoursville.^[12][13]

The construction period was marked by chronic cost overruns that came close to bankrupting the state, particularly after the 1980s slide in oil prices eroded Gabon's revenues.^[4][7] A commemorative history of the first phase, L'Épopée du Transgabonais: Owendo–Booué 1974–1983, was published by Berger-Levrault in 1984 in honour of President Bongo and records the participation of the Eurotrag consortium in detail.^[18]

The first section, Owendo–Ndjolé (about 181 km), was opened to traffic in 1978 (the Encyclopædia Britannica gives 1979 for the opening ceremony).^[6][16] The Ndjolé–Booué section was inaugurated on 18 January 1983 by President Bongo in the company of French President François Mitterrand.^[6][19] The Booué–Franceville section, some 357 km long, was completed and opened on 30 December 1986 in the presence of French Prime Minister Jacques Chirac; service to Franceville began in early 1987.^[4]

As of the early 2020s, SETRAG's fleet comprised 34 main-line diesel locomotives, approximately 723 freight wagons (including mineral wagons for manganese) and 41 passenger coaches, together with approximately 153 road vehicles and assorted construction plant.^[9]

Main-line traction has progressively been transferred to Chinese diesel-electric locomotives supplied by CRRC Ziyang, with four batches totalling 22 units delivered between 2010 and 2022.^[24][25] The most recent contract, signed in early 2022, covered six DF8B heavy-haul diesels together with ten years of maintenance; CRRC Ziyang states that in three-locomotive multiple-unit operation the type can haul continuous trailing loads of up to 11,000 t on an 8.3 ‰ gradient, meeting the requirements for heavy manganese services.^[24][3] Earlier deliveries included two EMD JT42CWR locomotives shipped in September 2011 with an option for four more and ten passenger coaches.^[15]

Passenger rolling stock is of mixed origin. Express services run in air-conditioned carriages built in Germany in 2017, while all-stations trains combine Korean-built coaches delivered in 2011 with refurbished 1960s vehicles of French origin.^[22]

By the mid-2010s the permanent way had deteriorated to the point that effective capacity was estimated to have fallen by roughly half from design values, with train speeds restricted on long sections of the line and frequent derailments occurring on unstable cuttings and embankments between Owendo and Ndjolé.^[1][6]

The Transgabonais has been characterised by successive commentators as both the physical spine of Gabon's economy and the most prominent symbol of the political economy of the Bongo era. Political scientist Douglas Yates argues that the railway exemplifies the rentier state logic of Gabonese development during the oil boom of 1975–1985: a showpiece infrastructure that was commercially unviable on its own terms but politically indispensable, cementing the Bongo regime's internal patronage networks and its external alignment with French capital.^[7][4] In an interview with Agence France-Presse, Yates observed that "since its creation, the Transgabonais has been closely linked to France and its interests".^[4]

Defenders of the project point to its indispensable role in the diversification and modernisation of the Gabonese economy. With the closure of the COMILOG Cableway on completion of the railway in 1986, the Transgabonais became the sole rail outlet for Moanda manganese, underwriting the growth of Gabon as one of the world's principal sources of the ore.^[14][29] According to Eramet, Gabon is the world's fourth-largest producer of manganese ore and the Transgabonais is "the backbone of national economic development".^[8] Gabonese economist Mays Mouissi, interviewed by AFP, has observed that "without manganese, this train could not exist", underlining the extent to which the railway and the Moanda mine are mutually dependent.^[4]

The railway also functions as a political and social artery. The train is widely known in Gabon as the "train Bongo" in recognition of the late president's role in its realisation.^[4] With the parallel national road (part of the RN1/RN3 network) in poor condition in many places, the Transgabonais is by a considerable margin the country's most important overland link between Libreville and the interior, and is used each year by hundreds of thousands of passengers for whom few alternatives exist.^[4][10]

Because the alignment was driven largely through primary equatorial forest, the Transgabonais has long been identified as an important vector of deforestation and forest fragmentation. The line passes through one UNESCO World Heritage Site (Lopé-Okanda) and three Ramsar wetlands – the Bas-Ogooué, the Rapides de Mboungou Badouma et de Doumé, and the Chutes et Rapides sur l'Ivindo – all of which the railway crosses.^[9] The MIGA environmental assessment for the PRN2 programme notes that "critical habitat" is triggered along parts of the corridor owing to the presence of critically endangered and endangered species and of restricted-range taxa, and that timber-feeder tracks developed around the rail corridor have extended the zone of anthropogenic disturbance well beyond the right of way.^[9]

The Transgabonais is also frequently cited in the French-language technical literature as a driver of secondary deforestation, since the network of forestry access roads necessary both for line maintenance and for the extraction of timber feeds onto the railway in a "fish-bone" pattern cut through intact forest.^[30] The extension of rail transport inland has also been linked to the commercial exploitation of dense heartwood species that were previously uneconomic to move because they could not be floated down the Ogooué.^[30]

Under SETRAG's current concession, environmental and social performance is governed by an Environmental and Social Management Plan and a Biodiversity Action Plan approved by the IFC and Proparco, under which the operator has pursued a "Zero Collision" programme with local communities, resettlement measures for informal settlers along the track, the controlled incineration of contaminated wooden sleepers, and specific measures to protect forest elephants and great apes within the corridor.^[9][31]

Operationally, derailments on sections built over waterlogged embankments have been a recurrent source of service disruption since the 1990s. In 2017 SETEC, the French engineering consultancy, was engaged by SETRAG to delimit and propose consolidation measures for unstable zones along the entire Owendo–Franceville alignment.^[6]

The Trans-Gabon Railway has no cross-border connections, and the adjacent states of Equatorial Guinea, Cameroon and the Republic of the Congo each possess either no railway or unconnected, metre-gauge or Cape-gauge networks.^[15] Two extensions have been proposed, repeatedly, since the 1980s:

• A Bélinga–Booué spur to open up the Bélinga iron-ore field in the north-east of the country. In 2005–2006 a Chinese consortium led by the China Machinery Engineering Corporation (CMEC) was granted exploration rights to Bélinga in exchange for a US$3 billion infrastructure package, which would have included a 560 km standard-gauge line linking Bélinga to the Transgabonais, a deep-water export port at Santa Clara, and a hydroelectric dam at Kongou Falls.^[32][33] The agreement was suspended amid environmental opposition and subsequent political changes and has not, as of 2026, produced any rail construction; in February 2023 the Australian mining group Fortescue signed a further agreement to develop Bélinga, again envisaging combined road and rail evacuation to an existing port.^[33]

• A south-eastern extension to Brazzaville in the Republic of the Congo, which has been mooted at intervals since the late 1980s and would in principle connect the Transgabonais with the Congo–Ocean Railway at the Pool. None of the proposals has progressed beyond the study stage.^[13][34]

• Transport in Gabon
• AfricaRail
• Railway stations in Gabon