The Kenyan Government, in collaboration with the African Development Bank Group (AfDB), has launched the second phase of the Nairobi Rivers Rehabilitation and Restoration Program: Sewerage Improvement Project (NaRSIP II). This ambitious initiative aims to enhance access to improved sanitation services, upgrade the quality of the Nairobi Rivers, and foster the sustainable development of Kenya’s capital.
Nairobi, home to approximately 9% of Kenya’s population of 48.5 million, faces significant sanitation challenges due to rapid urbanization outpacing the development of essential services. Building on the successes of the first phase (NaRSIP I) conducted between 2012 and 2017, the Government of Kenya, through the Athi Water Works Development Agency (AWWDA), is poised to advance these efforts with NaRSIP II.
Objectives and Achievements of NaRSIP I
The initial phase of the Nairobi Rivers Sewerage Improvement Project (NaRSIP I) made considerable strides in addressing Nairobi’s sanitation issues. Key achievements included the construction of 56 kilometers of trunk sewers, 40 kilometers of reticulation sewers, and substantial expansions of wastewater treatment plants. Notable projects included the expansion of the Dandora wastewater treatment plant and the rehabilitation of the Kariobangi wastewater treatment plant. These efforts increased sewerage coverage in the city from 40% to 48%.
Goals and Components of NaRSIP II
NaRSIP II aims to further elevate the coverage of improved sanitation services from 48% to 55% in Nairobi. This phase focuses on three critical components:
- Rehabilitation and Duplication of the Dandora Sewerage Treatment Plant (DESTP): Central to the project is the enhancement of the Dandora treatment facility’s processing capacity. This will bolster the plant’s ability to manage and treat wastewater efficiently, supporting the city’s growing needs.
- Construction of Secondary Reticulation Sewers: Addressing gaps in the city’s sewerage network, this initiative will establish a comprehensive framework of secondary reticulation sewers. This infrastructural expansion is designed to significantly increase access to sanitation services, benefiting a broader and more diverse population.
- Capacity-Building Efforts: Ensuring the long-term sustainability and effectiveness of the improvements, NaRSIP II will include capacity-building initiatives. These efforts will enhance the skills and knowledge of stakeholders involved in the management and operation of the infrastructure.
Environmental and Economic Impact
The anticipated expansion of access to water and sanitation services is expected to have a profound impact on poverty reduction. By creating new business opportunities and reducing costs for residents, the project could play a crucial role in improving economic conditions within the city.
In line with its environmental goals, NaRSIP II will incorporate several green initiatives. These include tree planting along sewer line routes, converting biogas to energy at wastewater treatment plants, implementing methane gas collection and flaring techniques to reduce greenhouse gas emissions, and undertaking various climate adaptation measures such as rainwater harvesting and the development of green infrastructure.
Conclusion
The Nairobi Rivers Rehabilitation and Restoration Program: Sewerage Improvement Project Phase II represents a significant step forward in addressing Nairobi’s sanitation challenges. By improving the quality of the Nairobi Rivers and expanding access to enhanced sanitation services, the project promises to contribute to the sustainable development of Kenya’s capital. The partnership between the Kenyan Government and the African Development Bank Group underscores a shared commitment to environmental sustainability, economic development, and the well-being of Nairobi’s residents.
