Narok Town Sewerage Project

Narok Town Sewerage Project

Project Background:

Narok Town is the administrative headquarters of Narok County and a major commercial centre in the south-west region of the Country. It is located approximately 109km west of Nairobi.

Narok Town, with two water supply systems has a relatively reliable water supply and extensive water distribution network.

With a rapidly growing population (108,000 in 2030) and a faily regular supply system, lack of water-borne sanitation system in Narok Town posed both a health risk to the population and a growth limit factor.

The main goal of the Project is to develop the most cost-effective system to address sewage conveyance, treatment and disposal in Narok Town in view of the prevalent on-plot sanitation systems within Narok Town.

The Scope of Works is as follows:

• Trunk and Secondary Sewers, diameter ranging between 225mm and 500mm, total length 43.7km, uPVC and Double Wall Corrugated (DWC) HDPE Sewer Pipes.
• Main Trunk Sewer, comprising of 800mm dia Double Wall Structured (DWS) HDPE Pipeline section, length 5.1km and 600mm dia Double Wall Corrugated (DWC) HDPE Sewer Pipeline section, length 5.7km
• Sewage Treatment Plant (Waste Stabilization Ponds), Capacity 3,000mᶟ/day
• Sewer connectivity targeting 500 connections.
• Last Mile Water Supply Connectivity; Extension of water reticulation system, approximate total length 95km and installation of 2,400 consumer water connections and customer meters.

Project Details


Central Rift Valley Water Works Development Agency

Period of Assignment:

2019 - 2021

Financed by:

ADB and GoK

County/ Town



Design Review, Preparation of Tender Documents and Construction Supervision of the Works.