Nairobi Water Supply Gains Threatened by Poor Planning Discipline

A version of this article appeared in The Star.

Data from the Nairobi City Water and Sewerage Company and the county government confirm a persistent gap between water supply and demand. For decades, residents have balanced their lives around a rationing schedule that often feels permanent. Recent breakthroughs in infrastructure suggest a shift, yet the sustainability of these gains remains under scrutiny.

The Northern Collector Tunnel project is a primary focus of these developments. This massive undertaking seeks to divert water from the Maragua, Gura, and Asamwenji rivers into the Ndakaini Dam. Engineers expect this to significantly increase the daily volume available for the city.

However, the construction of tunnels and treatment plants represents only one side of the solution. Technical capacity alone cannot overcome the pressures of an unregulated urban sprawl. Without planning discipline, the new supply will likely be swallowed by informal connections and inefficient distribution networks.

The Nairobi City Water and Sewerage Company currently oversees a system that struggles with non-revenue water. This term refers to water that is produced but lost before it reaches a paying customer. Losses occur through physical leaks in aging pipes and commercial theft through illegal bypasses.

Infrastructure experts argue that the city's growth has outpaced the implementation of the 1973 Nairobi Master Plan. While subsequent plans exist, their enforcement has been inconsistent. This lack of order makes it difficult for utility providers to map out sustainable service delivery.

Government officials, including President Ruto, have recently emphasized the need for public-private partnerships to fund further water projects. The goal is to move away from total reliance on the exchequer for heavy capital expenditure. Such investments require a predictable environment where planning laws are respected.

The Kigoro Treatment Works is another critical component in the current expansion phase. It is designed to process the increased volumes coming from the Northern Collector. Once fully operational, it should provide a buffer against the shortages that typically peak during the dry seasons.

Despite these physical improvements, the deficit remains a mathematical reality. Nairobi requires roughly 850,000 cubic meters of water daily, while current production often falls below 600,000 cubic meters. Closing this 250,000-cubic-meter gap requires more than just new pipes.

Planning discipline involves regulating where buildings go up and ensuring they have approved connections. When developers ignore these regulations, they put undue pressure on existing mains, which leads to localized dry taps even when dams are full.

The success of the current water breakthrough depends on the synergy between the Athi Water Works Development Agency and the Nairobi County government. If the city continues to expand without a strictly enforced spatial plan, the new infrastructure will only offer a temporary reprieve.

Ultimately, the technical completion of the Northern Collector Tunnel is a landmark, but it is not a final victory. The challenge now shifts from the construction site to the halls of city planning and enforcement. Only through disciplined management can Nairobi ensure that every drop of the new supply reaches its intended destination.