Nairobi's Underground Railway: What You Need to Know

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7/22/2026 · 👁 1 · nairobi-underground-railwaynairobi-metropolitan-mass-rapid-transit-systemnairobi-cbd-underground-railsakaja-cabinet-railway-approvalnairobi-transport-infrastructurekenya-railway-development
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What is the Nairobi underground railway project?
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The Nairobi underground railway project is a groundbreaking initiative approved by Nairobi County to introduce the city's first underground railway line 12. This project is a significant part of the broader Nairobi Metropolitan Mass Rapid Transit System (NMRTS) and aims to transform public transportation in the city 158.

Project Overview

The primary goal of the Nairobi underground railway is to alleviate severe traffic congestion within the Central Business District (CBD) and improve overall public transport efficiency 247. It represents a strategic shift towards rail-based urban mobility as Nairobi's population continues to expand 3.

Key Features and Scope

Underground Core and Eastlands Line

The initial phase of the project, Phase I, will focus on two critical mobility corridors 8:

  • Underground Rail Core: This section will run beneath the Central Business District (CBD) 128.
  • Eastlands Line: This line will connect the CBD to Eastlands, one of Nairobi's busiest commuter routes 148. Eastlands has been specifically announced as a flagship area for the project 4.

Integrated Transit Terminals

The approved framework includes the development of integrated transit terminals. These terminals are designed to seamlessly connect the underground rail services with pedestrian pathways and non-motorized transport options, promoting a holistic approach to urban mobility 6.

Broader Transport Strategy

The underground railway project is not an isolated initiative but rather a component of a larger, integrated multimodal transport network being developed in Nairobi 9. This broader strategy includes:

  • Nairobi Railway City redevelopment programme: The National Treasury has committed funds to support this program 3. Construction work for the first phase of the Nairobi Railway City projects has already begun 10.
  • Commuter rail modernisation: Upgrading existing commuter rail lines, such as the Riruta-Lenana-Ngong line, is also part of the plan 39.
  • Expansion of Bus Rapid Transit (BRT) corridors: These corridors are being expanded to complement the rail network 9.

Project Significance

Easing Traffic Congestion

Nairobi is notorious for its traffic congestion. The underground railway is expected to significantly reduce this by providing an efficient alternative for commuters, particularly those traveling to and from the CBD and Eastlands 27.

Modernizing Public Transport

This project will modernize Nairobi's public transport system, offering a faster, more reliable, and environmentally friendly mode of transport 25.

Regional Impact

Upon completion, Nairobi will become the second city in Kenya to develop a railway system specifically aimed at easing congestion, following Mombasa 6. This marks a significant step in Kenya's urban development and infrastructure.

Approval and Support

The project has received official approval from Nairobi County, specifically from the Cabinet of Governor Johnson Sakaja 17. The National Treasury has also committed substantial funding to support various related railway initiatives 3.

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