The Eastern Bypass is one of Nairobi‘s most important transport arteries, but it is also one of its most dangerous at night. This guide is based on verified data from government agencies, recent crash reports, and local observations. If you need to travel this route after dark, read carefully.
1. Understanding the Eastern Bypass
The Eastern Bypass runs approximately 28 km from City Cabanas near the JKIA/Mombasa Road interchange, through Utawala, Ruai, and Ruiru, before joining Thika Road and the Northern Bypass[reference:20][reference:21]. It is a vital connection for residents of the eastern satellite towns and for traffic avoiding the city centre.
Unlike the well‑lit sections of the Nairobi Expressway, the Eastern Bypass has inconsistent street lighting. Large sections are completely unlit at night. The road surface varies—some stretches are smooth, others have developed potholes and uneven patches.
2. Officially Recognised Blackspots
The Ministry of Interior has identified Eastern Bypass near the Transami Footbridge as an official blackspot[reference:22][reference:23]. This designation means this section has recorded a significant number of fatal and serious injury accidents over time. The Kasarani-GSU stretch along the bypass has also been identified as a high-risk area.
Other dangerous sections include City Cabanas (Pipeline/Utawala area), Kamakis stretch, and the Industrial Area turnoff near the GSU Camp (the transition zone where trucks exit and merge into the bypass). The Ruai Bypass is another nearby stretch prone to flooding and accidents.
Crash Data: Between 2019 and 2022, the Eastern Bypass recorded 24 deaths, ranking it the sixth deadliest road in the county.
3. Major Incidents (2025–2026)
Real crashes in recent months confirm that these risks are not theoretical.
Korompoi Blackspot Deaths (2025)
Between July and August 2025, at least 13 people died along the Korompoi stretch near Kitengela. In one incident, a lorry hit and killed a mother and daughter crossing the road. Residents responded by torching the lorry and barricading the highway for three hours.
Shortly after, a head-on collision between a lorry and a matatu at Korompoi killed seven people. Witnesses reported extremely foggy conditions at the time, with motorists driving with headlights on. This crash prompted KeNHA to install speed bumps along the stretch, but the blackspot remains dangerous.
Eastern Bypass Fatalities (2025)
In the Ruai area, a pillion passenger was crushed to death in a separate accident along the Eastern Bypass[reference:24]. A police officer was also killed in a hit-and-run incident along the bypass[reference:25].
Total Road Deaths
According to NTSA data, a total of 4,458 people were killed in road accidents between January and December 2025, surpassing the previous year‘s figure of 4,311[reference:26].
4. The Expressway Effect
The Nairobi Expressway has added a new layer of complexity. At launch, daily vehicle movements were roughly 11,000. By 2025, that number had surged to approximately 67,000 vehicles per day[reference:27].
Many matatus serving Pipeline, Utawala, and other parts of Eastlands use the Expressway in the evening, entering at Haile Selassie and exiting at the Eastern Bypass exit (Exit A)[reference:28]. This means evening traffic at the Eastern Bypass interchange can be heavy, with matatus and private cars competing for space.
Toll Waivers During Flooding (May 2026)
In May 2026, severe flooding along the Mombasa Road corridor forced Moja Expressway to waive toll fees for vehicles exiting via the Southern Bypass and Eastern Bypass (Exit A)[reference:29]. This was because sections of the highway became flooded, disrupting traffic and raising safety concerns[reference:30].
5. Understanding the Night Driving Risks
Night driving on the Eastern Bypass is more dangerous than driving during the day for several reasons.
Poorly Lit or Unmarked Trucks
A major hazard on Kenyan highways is poorly lit or completely unmarked trucks. Some have no tail lights, dim brake lights, or dirty reflective markings[reference:31]. At night, a stationary truck on the shoulder with no lights becomes invisible until you are dangerously close.
Pedestrians, Cyclists, and Livestock
Kenyan night roads often have pedestrians walking on the highway, cyclists with no reflectors, and livestock crossing rural stretches[reference:32]. On the Eastern Bypass, expect the unexpected.
Driver Fatigue
Fatigue-related accidents are common at night, particularly on long-distance routes. Night driving naturally increases fatigue. If you feel sleepy, stop immediately[reference:33].
Flooding Vulnerability
The Eastern Bypass and nearby Ruai Bypass have severe drainage failures. In February 2026, flash floods along Ruai Bypass led to a near-fatal submerging of a vehicle[reference:34].
6. Practical Night Driving Tips for the Eastern Bypass
- Reduce your speed by 20–30% compared to daytime. On unfamiliar stretches, go even slower. Never drive at a speed that makes you outdrive your headlights[reference:35].
- Assume every truck you see has no proper lighting. Keep a long following distance and pass only when the road is completely clear[reference:36].
- Use high beams only when there is no oncoming traffic. High beams help spot pedestrians and animals earlier. Dip them for approaching vehicles[reference:37].
- Keep your headlights, windscreen, and mirrors clean. Dirt and dust reduce brightness dramatically[reference:38].
- Stay alert for pedestrians walking in dark clothing and livestock crossing the road. If you see one, expect more nearby.
- If fog rolls in, slow down dramatically. The August 2025 Korompoi crash occurred in foggy conditions. Fog can appear suddenly, especially near the Korompoi/Kisaju area.
- Avoid the Eastern Bypass during peak evening hours (5 pm–8 pm) if possible. This is when matatus exit the Expressway at the Eastern Bypass interchange, creating queues at the toll station.
- For extremely late travel (after midnight), keep your doors locked and windows up. Night-time carjacking and theft cases are commonly reported on lonely sections of the Eastern Bypass[reference:39].
7. Getting to Imara Daima
Imara Daima is accessed via the Pipeline/Industrial Area exit off the Eastern Bypass. From there, it is a short drive down Mombasa Road.
By Matatu: Indimanje Sacco matatus operate from the CBD (Afya Centre) via Enterprise Road and Mombasa Road. However, frequency drops sharply after 8 pm. Avoid matatus on this stretch after dark.
By Uber/Bolt: The safest option. A trip from the CBD to Imara Daima via the bypass costs approximately KSh 450–700 during peak hours.
By SGR Train: The morning train leaves Imara Daima station at 7 am. The evening train from Nairobi CBD leaves at 5 pm. The ticket price is usually KSh 40. The last train is around 9 pm—not an option for after‑10 pm travel.
✓ Vehicle lights – Ensure headlights, brake lights, and indicators work
✓ Tyres – Check pressure and tread—night blowouts are more dangerous
✓ Fog – Check weather forecast for fog warnings, especially near Korompoi
✓ Fuel – Fill up before entering the bypass; isolated stretches have few stations
✓ Phone – Fully charged; share live location with someone
✓ Emergency contacts – Save KeNHA number (0700 423 606) and 999/112
For more travel and safety information in the wider JKIA corridor, visit our Syokimau escorts page and general safety guide.