AWWDA Unveils Trenchless Technology Project to Modernise Nairobi’s Water Network
Project engineers explain to the participants the route and reach of the new water pipeline during the public engagement
Nairobi, 26 January 2026: In an innovative shift in urban infrastructure, The Athi Water Works Development Agency (AWWDA) has unveiled a pioneering trenchless pipeline project aimed at upgrading Nairobi’s ageing water network without disrupting roads, businesses, or daily life for residents.
The initiative was introduced to the residents at Mbotela Social Hall in Makadara Sub-County during the soft launch of the Central Nairobi Water Network Rehabilitation Project, a KES 1.6 billion investment and implementation scheduled to begin in February 2026. The project marks a major shift in how urban infrastructure is delivered, prioritizing technical innovation, efficiency, and community protection.
A Different Kind of Breakthrough
Unlike conventional open-trench construction, the project will use Horizontal Directional Drilling (HDD), a minimally invasive technology widely applied in Europe and North America. The method enables the installation of high-density polyethylene pipes underground without excavating roads or pavements, significantly reducing noise, dust, traffic disruption, and business interruptions.
“Think of it as keyhole surgery for the city, we are replacing diseased arteries without open-heart surgery. The surface remains intact, life continues, and reliability improves.” said AWWDA sociologist Mohammed Koech.
The upgrade targets deteriorating asbestos-cement pipelines that have caused frequent bursts, water losses, and contamination risks. By adopting trenchless technology, AWWDA aims to reduce non-revenue water while improving supply reliability across the capital.
Making his remarks, Deputy County Commissioner Philip Koima underscored the government’s focus on public welfare during implementation.
“Safety is non-negotiable. Connectivity is non-negotiable. Livelihood continuity is non-negotiable,” Koima said.
To minimise socio-economic disruption, AWWDA has rolled out a Livelihoods Restoration Plan, appointed a community liaison consultant, and established a grievance redress mechanism to address concerns from residents, traders, and small businesses affected during construction. These steps reflect a commitment to operational accountability in a city sustained by informal economies.
A Sustainable, Long-Term Vision
Funded by the French Development Agency (AFD), the project will also integrate with the Northern Water Collector Tunnel, which currently delivers 140,000 cubic metres of water daily to Nairobi and neighbouring counties. The rehabilitation is expected to improve pressure balance and ensure more equitable distribution, particularly in underserved areas.
“We are creating a seamless journey for water from the dam to the tunnel, treatment plant, reservoir, and finally to the tap,” Koech said. “That continuity defines modern water security.”
The project is scheduled for completion in November 2027, with residents set to remain actively engaged through regular updates and consultations.
The Central Nairobi Water Network Rehabilitation Project signals a new era of urban renewal one where engineering innovation meets social responsibility, and infrastructure development advances without tearing communities apart.
