Nairobi Invests $250M to Clean Rivers and Expand Sewers

Nairobi is about to get a major infrastructure facelift, and it starts underground. Governor Johnson Sakaja announced that sewerage and sanitation will receive the biggest share of an $80 million development program for Kenya's capital, with $33 billion going directly to expanding sewer systems and restoring the city's polluted rivers.

The centerpiece of the plan includes two parallel 27-kilometer trunk sewer lines running along the Nairobi River corridor. These new arteries will dramatically boost the city's capacity to manage wastewater and prevent untreated sewage from flowing into waterways.

A brand new treatment plant capable of processing 60,000 cubic liters of wastewater daily will help restore water quality across the river system. The investment also funds last-mile sewer connections to reach households that currently lack access to proper sanitation, a crucial step in reducing environmental pollution.

The initiative forms a key part of Nairobi's Rising agenda, which aims to modernize infrastructure and solve long-standing sanitation challenges that have plagued the rapidly growing city. Beyond sewerage, the broader development program addresses other critical needs.

Water infrastructure will receive $5.1 billion to combat chronic shortages affecting many neighborhoods. The funds will upgrade the Ng'ethu Water Treatment Plant and develop the Gigiri-Shauri Moyo water evacuation corridor to improve distribution across the city.

Waste management gets a $6 billion boost to strengthen collection and disposal systems. The agreement between Nairobi County and the national government represents a coordinated effort to tackle infrastructure gaps that have limited the city's growth and affected residents' quality of life.

The Ripple Effect

When a city invests in sanitation, the benefits cascade far beyond cleaner streets. Proper sewerage prevents waterborne diseases that disproportionately affect children and vulnerable communities. Clean rivers mean safer water sources, healthier ecosystems, and restored natural spaces where families can gather.

For Nairobi's rapidly expanding population, these improvements signal a future where basic services keep pace with growth. The last-mile connections will bring dignity and health security to thousands of households currently relying on inadequate alternatives.

Governor Sakaja emphasized that the partnership will deliver visible improvements in sanitation, roads, lighting, and water supply. Residents can expect to see tangible changes as construction begins on what represents one of the largest infrastructure investments in the capital's recent history.

Kenya's capital is showing that even the biggest urban challenges can be tackled with serious commitment and resources.