Nairobi’s bypass network allows motorists and commuters to move between different parts of the metropolitan area without making Nairobi CBD the centre of every journey.

The network consists of four major orbital road corridors — the Northern Bypass, Eastern Bypass, Southern Bypass and Western Bypass — connecting major roads, residential areas, commercial centres and neighbouring towns around Nairobi.

For commuters, understanding where these bypasses connect is particularly useful when travelling across Nairobi rather than into the CBD.

This Metros Kenya guide brings the four bypass corridors together and shows how they connect with Nairobi’s wider road and public transport network.

← View all Nairobi Matatu Routes and Numbers

Nairobi Bypass Network at a Glance

The four bypasses can broadly be understood as a network surrounding much of Nairobi:

Western Bypass → Northern Bypass → Eastern Bypass → Southern Bypass → western Nairobi connections

They do not function as one continuous public transport route. Instead, they intersect with major radial roads and commuter corridors where travellers can change direction or connect with other transport services.

The most important interchange areas include Ruaka, Ruiru, Ruai, Mombasa Road, Bomas/Karen, Kikuyu/Gitaru and Waiyaki Way.

Northern Bypass

The Northern Bypass provides an east-west connection across the northern side of the Nairobi metropolitan area.

Read the full guide: Northern Bypass to Eastern Bypass: Routes, Connections & Public Transport Guide

https://metros.co.ke/northern-bypass-to-eastern-bypass/

One of its most important functions is connecting the Ruaka/Limuru Road side with northern Nairobi and the Ruiru/Thika Road side.

Major Northern Bypass connections

Ruaka
↓
Limuru Road
↓
Northern Nairobi
↓
Kiambu Road connections
↓
Kahawa/Ruiru side
↓
Thika Road

Ruaka therefore plays an important role at the western side of this network, while Ruiru provides access towards Thika Road and the Eastern Bypass side.

Existing Metros guides

Ruaka and Western/Northern Bypass connections:
Ruaka via Western Bypass: Matatu Routes, Stops & Travel Guide

Your existing Ruaka guide already identifies Northern Bypass connections towards destinations along northern Nairobi.

Eastern Bypass

The Eastern Bypass provides one of the most important orbital connections on Nairobi’s eastern side.

Read the full guide: Eastern Bypass Routes, Connections & Public Transport Guide

https://metros.co.ke/eastern-bypass-to-southern-bypass/

The Metros route database identifies its public transport network around Embakasi, Airport North Road, Utawala, Ruai, Kamakis and Ruiru.

A simplified corridor can therefore be understood as:

Ruiru/Kamakis → Eastern Bypass → Ruai → Utawala → Embakasi/Airport North Road connections

This makes the Eastern Bypass particularly useful for cross-city journeys involving eastern Nairobi without first travelling into the CBD.

Public transport connections

Metros already documents several services associated with this corridor, including Route 33, Route 33UTW, Route 38/39 and Route 39.

Read: Route 39 Nairobi to Ruai / Eastern Bypass

Read: Route 33 Nairobi to Utawala via Eastern Bypass

Southern Bypass

The Southern Bypass crosses the southern side of Nairobi and provides connections between Mombasa Road, Lang’ata Road, Ngong Road, Dagoretti and the Kikuyu/Waiyaki Way side.

Read the full guide: Southern Bypass Routes, Connections & Public Transport Guide

Your existing Metros transport database already organizes the corridor around five major connection points: Mombasa Road/Ole Sereni, Lang’ata Road/Bomas, Ngong Road/Karen, Dagoretti/Kikuyu Road and Kikuyu/Waiyaki Way.

The network can broadly be understood as:

Mombasa Road
↓
Lang’ata/Bomas
↓
Ngong Road/Karen
↓
Dagoretti/Kikuyu
↓
Waiyaki Way

This makes Southern Bypass particularly valuable for journeys between western, southern and southeastern Nairobi without travelling through the CBD.

Existing Metros guides

Kikuyu / Waiyaki Way Southern Bypass Connections

This existing guide explains how the western end of Southern Bypass connects with Kikuyu, Uthiru, Kinoo and the wider Waiyaki Way network.

Dagoretti / Kikuyu Road Southern Bypass Connection

The Dagoretti/Kikuyu corridor provides another connection between western Nairobi and Southern Bypass.

Western Bypass

The Western Bypass connects the Waiyaki Way/Gitaru side with Wangige, Kihara, Ndenderu and Ruaka.

Metros’ existing Gitaru–Ruaka guide describes the corridor as:

Read the full guide: western Bypass: Routes, Connections & Public Transport Guide

Gitaru → Wangige → Kihara → Ndenderu → Ruaka.

This is important because the two ends connect into larger networks.

At Gitaru, travellers can connect with Waiyaki Way and the Kikuyu/Southern Bypass side.

At Ruaka, travellers can connect with Limuru Road and Northern Bypass.

That makes Western Bypass a link between Nairobi’s western and northern commuter networks.

Existing Metros guides

Gitaru to Ruaka via Western Bypass

Gitaru and Kikuyu via Western Bypass

Ruaka via Western Bypass

How Nairobi’s Bypasses Connect

This is the most important part of the new Page.

The bypasses should not be understood as four isolated roads. Together with Nairobi’s major connecting roads, they form a wider orbital transport network.

Northern Bypass to Eastern Bypass

The key connection is on the Ruiru/Thika Road side.

Broadly:

Northern Bypass → Ruiru/Thika Road area → Eastern Bypass → Kamakis → Ruai → Utawala

This connection is useful for travellers moving from northern Nairobi towards the eastern metropolitan area without using Nairobi CBD.

Dedicated guide: Northern Bypass to Eastern Bypass

Eastern Bypass to Southern Bypass

The Eastern Bypass runs south through the Ruai/Utawala side towards Nairobi’s southeastern transport network, while Southern Bypass connects into the Mombasa Road corridor.

For commuters, this should be treated as a network connection involving connecting roads/interchanges, rather than claiming the two bypasses simply merge into one another.

Broadly:

Eastern Bypass → southeastern Nairobi/Mombasa Road connections → Southern Bypass

Dedicated guide: https://metros.co.ke/eastern-bypass-to-southern-bypass/

Southern Bypass to Western Bypass

This is one of the clearest western network relationships.

Southern Bypass reaches the Kikuyu/Waiyaki Way side, while Western Bypass begins around Gitaru and travels north towards Wangige, Ndenderu and Ruaka.

Metros already documents Gitaru/Kikuyu as a connection between Waiyaki Way, Western Bypass and access towards Southern Bypass.

Broadly:

Southern Bypass → Kikuyu/Waiyaki Way → Gitaru → Western Bypass

Dedicated guide: .https://metros.co.ke/southern-bypass-to-western-bypass/

Western Bypass to Northern Bypass

This is another particularly strong connection.

Western Bypass runs:

Gitaru → Wangige → Kihara → Ndenderu → Ruaka

At Ruaka, travellers reach Limuru Road and Northern Bypass.

Broadly:

Western Bypass → Ndenderu → Ruaka → Northern Bypass

Dedicated guide: https://metros.co.ke/western-bypass-to-northern-bypass/

Major Nairobi Bypass Interchanges

Understanding the interchange points is more useful than simply memorising the names of the bypasses.

Ruaka

Western Bypass ↔ Northern Bypass ↔ Limuru Road

Ruaka is one of the most important bypass interchange areas on the northern side of Nairobi.

Ruiru

Northern Nairobi network ↔ Thika Road ↔ Eastern Bypass connections

Ruiru provides an important connection between Nairobi’s northern and eastern metropolitan road networks.

Ruai and Utawala

Eastern Bypass ↔ Kangundo Road ↔ Airport/Embakasi connections

These areas provide connections between the Eastern Bypass and Nairobi’s wider eastern public transport network. Metros’ database identifies Ruai and Utawala as important Eastern Bypass destinations.

Mombasa Road

Southern Bypass ↔ Mombasa Road ↔ JKIA/Athi River/Nairobi

Mombasa Road is the eastern gateway into the Southern Bypass network.

Bomas / Karen

Southern Bypass ↔ Lang’ata Road ↔ Ngong Road/Karen

This is an important connection for journeys involving Rongai, Karen, Ngong and southern Nairobi.

Kikuyu / Gitaru

Southern Bypass ↔ Waiyaki Way ↔ Western Bypass

This is the principal western transition between the Southern and Western bypass networks. Metros already has content documenting this relationship.

Can You Travel Around Nairobi Using the Bypasses?

Yes, but motorists and public transport passengers experience the network differently.

A private vehicle can generally make greater use of continuous bypass journeys and connecting roads.

For matatu passengers, travelling from one bypass to another may require changing vehicles at major towns, stages or road junctions.

For example, Metros’ Western Bypass guide notes that a passenger travelling between Gitaru and Ruaka may need to change vehicles at Wangige, Ndenderu or another interchange depending on current operations.

Passengers should therefore not assume that the existence of a road connection means one matatu operates across the entire journey.

Nairobi Bypass Public Transport

Public transport around the bypass network is best understood through the towns and corridors each bypass intersects.

Northern Bypass: Ruaka, northern Nairobi and Ruiru connections

Eastern Bypass: Ruiru/Kamakis, Ruai, Utawala and Embakasi connections

Southern Bypass: Mombasa Road, Bomas/Lang’ata, Karen/Ngong Road, Dagoretti and Kikuyu

Western Bypass: Gitaru, Wangige, Kihara, Ndenderu and Ruaka

For individual matatu numbers and destination guides:

View all Nairobi Matatu Routes and Numbers

Nairobi Bypass Connections at a Glance

Plan Your Nairobi Bypass Journey

The best bypass route depends on your starting point, destination, traffic conditions and whether you are using private or public transport.

For public transport passengers, bypass journeys may require changing vehicles at major interchange points.

Metros Kenya continues to document these connections through individual road, matatu and commuter guides.

← View all Nairobi Matatu Routes and Numbers

As the individual bypass-to-bypass guides are published, they should be added to this Page so that it remains the permanent entry point to the entire Nairobi bypass network.