Mombasa–Nairobi Standard Gauge Railway

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Mombasa–Nairobi Standard Gauge Railway
TypeHeavy rail
Opened31 May 2017 (2017-05-31)
CharacterFully grade-separated
Line length485 km (301 mi)
Track gauge1,435 mm (4 ft 8 12 in) standard gauge
ElectrificationNone, upgrade planned
Operating speed120 kilometres per hour (75 mph) (passenger)
80 kilometres per hour (50 mph) (freight)
Route map

Mtito Andei
Athi River

The Mombasa–Nairobi Standard Gauge Railway is a standard-gauge railway (SGR) in Kenya that connects the large Indian Ocean city of Mombasa with Nairobi, the country's capital and largest city. This SGR runs parallel to the defunct, narrow-gauge Uganda Railway that was completed in 1901[1] under British colonial rule. The East African Railway Master Plan provides for the Mombasa–Nairobi SGR to link with other SGRs being built in the East African Community.[2]

At a cost of US$3.6 billion, the SGR is Kenya's most expensive infrastructure project since independence. The prime contractor was the China Road and Bridge Corporation, which hired 25,000 Kenyans to work on the railway. Phase 2A of this project was launched officially in October 2016.[3]

The first fare-paying passengers boarded the "Madaraka Express" on Madaraka Day (1 June 2017), the 54th anniversary of Kenya's attainment of self-rule from Great Britain. Commercial freight services began on 1 January 2018.[4] Passenger uptake has exceeded expectations, with the train carrying 2 million riders in the first 17 months of operation.[5][6]


The Mombasa-Nairobi SGR generally runs parallel to the metre-gauge Uganda Railway.[7] The SGR, however, has a straighter alignment to accommodate higher speeds. Because of the rough and hilly terrain, large portions of the SGR were built on viaducts, embankments, and cuttings. The Uganda Railway tackled the hilly terrain near Mazeras township by using a spiral. In contrast, the SGR passes through this area on two bridges, with the 43.5 metres (143 ft)-high Mazeras-2 bridge being the highest one on the route. As it approaches Nairobi, the SGR crosses the 2.6 kilometres (1.6 mi) Athi River Super Bridge, which at the time of its completion was the sixth-longest bridge in Africa. The SGR has 98 bridges.[8]

Another purpose of the SGR's viaducts and embankments is environmental protection. A highway and the Uganda Railway pass through the transportation corridor between Tsavo East National Park and Tsavo West National Park. Because they are at ground level, collisions with wildlife occur. The viaducts and embankments elevate the SGR above ground level, allowing wildlife to pass safely underneath. Six underpasses also allow wildlife to move safely beneath the SGR.[9]

Passenger trains run between Mombasa Terminus in Miritini and Nairobi Terminus in Syokimau, which is near the Jomo Kenyatta International Airport[10]

Freight services are provided between Port Reitz, which is just west of Mombasa Island, and the inland container depot in the Embakasi division of Nairobi.[11]

Passenger stations[edit]

There are nine passenger stations between Mombasa and Nairobi. Each station's architecture is inspired by local elements.[12]

  • Mombasa Terminus[13]: Concentric circles and a central tower, representing a ripple in the ocean.
  • Mariakani: Porticos are inspired by coconut trees, which are plentiful in the region.
  • Miasenyi: White and brown stripes, inspired by the stripes of a zebra.
  • Voi: V-shaped like a person with raised hands, representing the spirit of harambee. V is also the first letter of Voi.
  • Mtito Andei: Sloping roofs, representing Mount Kilimanjaro and the Chyulu Hills.
  • Kibwezi: Based on traditional African architecture, with leaves that shade passengers from the sun.
  • Emali: A closed fist, representing unity.
  • Athi River: Shaped like the region's hills.
  • Nairobi Terminus[14]: Two trains with a bridge on top.

Passengers can transfer at Nairobi Terminus to metre-gauge trains into the Nairobi city centre.[10] Although they are designated as terminals, the Mombasa and Nairobi stations were built as through stations and were originally designated Mombasa West Station and Nairobi South Station.[11] When Phase 2 of the SGR is completed, trains will continue through the Nairobi station to the Uganda border.


Kenya is a member of the Northern Corridor Integration Project (NCIP), which has selected the Chinese National Railway Class 1 standard for its railways. The adoption of a common standard allows for seamless integration between the railways of NCIP countries.[15]

  • Gauge: Standard-gauge
  • Couplers: Janney AAR
  • Brakes: Air
  • Electrification: None, in planning
  • Design capacity: 22 million tonnes per year[11]
  • Structure gauge: cargo transport with two containers stacked on top of each other [16]


In the 2000s, Kenya's colonial-era metre-gauge railways deteriorated from lack of maintenance. By 2016, passenger trains were taking an entire day to travel from Nairobi to Mombasa, compared to 12 hours during the early 1990s.[7] Freight transported from the Port of Mombasa fell from 4.8 million tonnes per year in the 1980s to 1.5 million tonnes per year in 2012.[17] In 2014, the Rift Valley Railways Consortium, the operator of railways in Kenya and Uganda, reported a loss of US$1.5 million.[18]

At the same time, the Chinese government was funding railway construction in other African countries. In 2011, Kenya signed a memorandum of understanding with the China Road and Bridge Corporation to build a standard-gauge railway between Mombasa and Nairobi. The US$3.6 billion railway was the largest infrastructure project in Kenya since independence.[19] Financing was finalised in May 2014, with the Exim Bank of China extending a loan for 90 percent of the project cost and the remaining 10 percent coming from the Kenyan government.[20][21] The number of Kenyans who were hired to work on the railway was 25,000.[22]

Tracklaying was completed in December 2016. Passenger service was officially inaugurated on 31 May 2017, eighteen months ahead of schedule.[23]

Type Manufacturer Number Notes Source
DF8B CRRC Qishuyan 8 Freight locomotive [24]
DF7G CRRC Qishuyan 2 Freight/Road switcher [25][26]
DF11 CRRC Qishuyan 5 Passenger locomotive [26]
25G CRRC Nanjing Puzhen 39 Passenger coaches and support cars [27]
C70E CRRC Qiqihar 180 Gondola [27]
NX70 CRRC Qiqihar 150 Container car [27]


Most of the employees working for the SGR are Kenyans. As of July 2018, Chinese workers occupy most of the critical positions, including dispatcher and locomotive driver. A full handover to Kenyans had not taken place after one year of operation, which triggered political controversy in Kenya.[28][29] In China, it takes four years before a locomotive driver is allowed to begin solo operation of a train.[30]

See also[edit]


  1. ^ R. T. Ogonda (1992). "Transport and Communications in the Colonial Economy". In W. R. Ochieng; R. M. Maxon. An Economic History of Kenya. Nairobi: East African Educational Publishers. p. 131. ISBN 978-9966-46-963-2.
  2. ^ China Railway to Link Kenya, Uganda, Rwanda, Burundi and South Sudan
  3. ^ Weitere Mwita (3 December 2016). "Funds for SGR phase II to be in by January 2016, assures state". The Star. Nairobi. Retrieved 14 February 2018.
  4. ^ Ltd, DVV Media International (3 January 2018). "Mombasa – Nairobi standard gauge freight service launched". Railway Gazette.
  5. ^ Omusula, Moses (3 November 2018). "SGR train clocks 2 million passengers". The Standard.
  6. ^ Ndubi, Erick Kombo (5 November 2018). "VIP treatment for loyal nurse as Madaraka Express hits 2 million passenger mark". Tuko.
  7. ^ a b Daniel Knowles (July/August 2016). "Journeys: The lunatic express". 1843 Magazine. The Economist. Check date values in: |date= (help)
  8. ^ Simon Ciuri. "Breathtaking and hair-raising scenery of Kenya's Standard Gauge Railway (photos)". Retrieved 23 January 2017.
  9. ^ Gilbert Koech (29 December 2016). "Jumbos using underpasses in Tsavo". The Star.
  10. ^ a b Sandra Chao-Blasto; Kiarie Njoroge (13 January 2016). "Mombasa SGR passengers to change trains at Syokimau".
  11. ^ a b c "Mombasa-Nairobi Standard Gauge Railway Project". Railway Technology. Retrieved 4 December 2016.
  12. ^ Peter Muiruri (3 April 2017). "Inspiration behind Standard Gauge Railway stations". The Standard.
  13. ^ Daniel Wesangula. "SGR promises traffic-free travel to Mombasa island". The Standard.
  14. ^ "Airport-like Nairobi railway terminal almost complete". Nairobi News. 6 March 2017.
  15. ^ "Information about Standard Gauge Railway" (PDF). Uganda Ministry of Works, Transportation and Communication. 7 April 2017. Date found at introductory page:
  16. ^ "Salient features of the standard gauge railway". Kenya Railways Corporation. Retrieved 22 July 2018.
  17. ^ David Mugwe (19 August 2013). "Rail transport makes a comeback". Daily Nation. Nairobi. Retrieved 22 July 2018.
  18. ^ Patrick Mayoyo; Berber Verpoest; George Turner (22 June 2016). "World Bank looks into case of 'Embezzlement' at RVR". The Observer. Kampala, Uganda. Retrieved 22 July 2018.
  19. ^ Inside the SGR, Kenya's largest and most expensive infrastructure project since Independence. NTV Kenya.
  20. ^ "Mombasa - Nairobi standard gauge line funding agreed". Railway Gazette. 14 May 2014. Retrieved 22 July 2018.
  21. ^ "Kenya, China sign standard gauge railway agreement". Daily Nation. 11 May 2014.
  22. ^ Hou Liqiang (20 September 2015). "Chinese company helps build new railway in Kenya". China Daily. Retrieved 22 July 2018.
  23. ^ "Kenya opens Nairobi-Mombasa Madaraka Express railway". BBC. Retrieved 31 May 2017.
  24. ^ "SGR Photo Updates". Archived from the original on 23 June 2016. Retrieved 21 May 2016.
  25. ^ "DF7G diesel shunting locomotive" (in Chinese). CRRC Qishuyan.
  26. ^ a b "Kenyan standard gauge locomotives unveiled". Railway Gazette. 20 December 2016.
  27. ^ a b c "蒙内铁路项目第五、六批轨道设备顺利登港" (in Chinese). 中国路桥工程有限公司. 20 March 2017.
  28. ^ Paul Wafula (7 July 2018). "Exclusive: Behind the SGR walls". Standard Digital. Nairobi. Retrieved 23 July 2018.
  29. ^ Patrick Vidija (11 July 2018). "Senate summons Kenya Railways, labour CS over alleged mistreatment of SGR employees". The Star. Nairobi. Retrieved 23 July 2018.
  30. ^ A legend of speed! Three generations of train drivers witness China's rail revolution in 60 years. New China TV. I started work in 2009, and in 2013 I started driving alone.