Now Reading: Nairobi Western Corridor to Receive Sh3 Billion Water and Sewer Upgrade
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Nairobi Western Corridor to Receive Sh3 Billion Water and Sewer Upgrade
More than 300,000 residents in Nairobi’s western corridor are set to benefit from improved water supply and sanitation services under a Sh3 billion infrastructure upgrade aimed at addressing pressure on ageing urban systems.
The project, being implemented by the Athi Water Works Development Agency (AWWDA), will introduce a new high-capacity transmission pipeline, expand sewer networks and add storage infrastructure across several rapidly growing neighbourhoods.
The Western Nairobi Water and Sewerage Project is aimed at strengthening water supply reliability and sanitation coverage in areas such as Kangemi, Kawangware, Dagoretti, Riruta, Uthiru, Kinoo and Karen.
Project scope
The upgrade will include the construction of a 19.7-kilometre high-capacity transmission pipeline running from Kabete to Olesereni, designed to improve bulk water delivery into the western parts of the capital.
A 5,500 cubic metre reinforced concrete storage tank will also be built in Karen to stabilise pressure and improve distribution across the corridor.
Authorities say the storage facility will help balance supply and demand across the network, especially during peak consumption periods.
In addition, the project will extend sewer infrastructure with the construction of about 63 kilometres of sewer reticulation lines.
The expanded network is expected to improve sanitation services for roughly 250,000 residents.
The works will be undertaken by a joint venture between Chinese contractors Zhongmei Engineering Group and Hunan Construction Investment.
Addressing infrastructure pressure
Speaking during the contract signing, AWWDA chief executive Joseph Kamau said the project will help address long-standing infrastructure gaps caused by rapid population growth in the western corridor.
“The project builds on the gains made by the Northern Collector Tunnel to optimise storage infrastructure and strengthen bulk transmission capacity within Nairobi Metropolis,” Kamau said.
He said expanding transmission pipelines, increasing storage capacity and extending sewer coverage will improve system stability and help meet growing demand for water and sanitation services in the city.
The project is expected to be completed within 24 months.
Funding and broader strategy
The Sh3 billion upgrade is being financed in partnership with the French Development Agency, reflecting increasing international support for urban infrastructure development in Kenya.
The investment forms part of a broader push to modernise water systems across the Nairobi metropolitan region, where population growth has strained existing infrastructure.
According to Nairobi County estimates, more than Sh20 billion is needed to replace ageing pipelines and expand water and sewer networks across the capital.
AWWDA has outlined plans to invest about Sh241.2 billion between 2023 and 2027 to expand water and sanitation infrastructure across Nairobi, Kiambu and Murang’a counties.
The programme includes the construction of new dams, expansion of transmission and distribution pipelines, rehabilitation of ageing networks and upgrades to wastewater treatment facilities.
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