Residents in some estates across Nairobi will soon be connected to the sewer line in a move aimed at boosting the sanitation levels in the city.

This comes after the Nairobi City Water and Sewerage Company (NCWSC) embarked on an ambitious project to expand sewer lines.

“Under the leadership of our Governor, Sakaja Johnson, we are now expanding the sewer lines in some areas of City to accommodate the rising number of people. Works have already begun in various parts of the City and are expected to be completed this financial year,” said NCWSC Chairperson Arnold Karanja.

This expansion is part of a broader initiative to modernize the city’s sewer system.

Nairobi Governor Johnson Sakaja previously noted that the sewer line expansion would be executed in phases, based on necessity.
“The design and planning of the city date back several decades, and the population has grown to over five million people daily. We shall roll out the expansion plan based on need,” Sakaja said.

He acknowledged the significant financial investment required for a comprehensive overhaul of the city’s sewer system. The county boss said several other areas in Nairobi are expected to be included in the expansion program, ensuring that the city’s infrastructure keeps pace with its dynamic growth.

He also noted Nairobi was working in collaboration with the national government to build affordable housing in Makongeni and NCWSC would ensure adequate sewer coverage.

“We have put in place plans to ensure that the new affordable housing developments are adequately serviced by the expanded sewer network,” he said.

NCWSC is looking to increase the water capacity in this financial year 2024/2025 by 160,000M3 daily with various investments.
One of the significant undertakings is the Kawangware Sewer Rehabilitation Works.

The project involves the installation of a 5.8-km sewer line with nominal diameters of 300 mm and 375 mm. The line is set to serve the Kabiru and Kawangware wards.

Currently, the project is 30 per cent complete, with an anticipated completion date of June 2025. This upgrade is expected to significantly improve sanitation services in these densely populated areas.

Another crucial project nearing completion is the proposed sewer upgrade along Eastleigh’s Third Avenue.

This project features a sewer pipeline with a nominal diameter ranging from 732 mm to 450 mm, stretching a total length of 600 meters.

The upgrade is designed to enhance the sewer system serving Kaloleni, Makongeni, and parts of the Industrial Area along Lusaka Road.

Additionally, it will cater to the Shari Moyo and Bahati affordable housing projects. With 90% of the work already completed, the project is expected to be finalized by the end of 2024. In Mowlem Ward, NWSC is constructing a new sewer line that will drain into the Nairobi River Trunk Sewer. The project spans 8 kilometers, with pipes ranging in diameter from 750 mm to 225 mm.