At least 40,000 households in the Kiu River basin will be connected to a sewer line by May as more than half of Nairobi’s sewer line rehabilitation is complete.
The Sh4 billion African Development Bank-funded projected being implemented by Athi Water Services Board will help the residents of Githurai 44 and 45, Githurai Kimbo, Kahawa West and Wendani and Mukia — the first beneficiaries of the project that is almost complete.
An additional 32,000 households across the city will also benefit by mid-2015 when the project ends. It includes the expansion of the Dandora waste water treatment plant in Ruai.
“The expansion will enable the plant to achieve its design capacity of 160,000 cubic metres treatment of waste water per day, with a potential to generate 2MW of power to enhance operational sustainability,” said the project head Engineer Joseph Kamau.
Mr Kamau said most of the expansion works at the plant is done, adding that box culverts will be extended all the way to Kasarani, Mwiki and Njiru areas where construction of sewer lines by the board has recently been completed.
The sewer works will address the regular flooding in the area along Kagundo Road near Komarock by the draining Umoja area.
“In the Ngong River basin, due to low capacity of the existing sewer line along the Ngong Trans-sewer from Njiru to Kibera, a second sewer line from Mater Hospital up to Nyayo Highrise estate will be constructed along the Ngong River,” the enginner said.
The increased capacity through the new line will help to carry waste water from Kilimani and Upper Hill areas as a duplication of the Upper Hill Trans-sewer from Kenyatta Hospital to Nairobi West is being done to address the massive developments in Upper Hill area.
“Estates in Lang’ata and Ngei where sewer lines have been silted up resulting to waste water flowing into Nairobi dam will undergo rehabilitation. A new sewer line will be laid to the south of the dam to tap all the waste water from the estates to the south of the dam,” explained Kamau.
The project will also see reconstruction of the incapacitated 1ft 300mm sewer line along Mathare River valley to a 6km 700mm diameter sewer line east of Outering Road all the way to Thika Road.
The new sewer line will assist in ferrying waste water from Muthaiga and Parklands to the Nairobi river trunk.
Sewer lines servicing the CBD will also get an upgrade. A 5km 1.2m diameter sewer line will be constructed parallel to the existing one from 1st avenue Eastleigh to Chiromo where it will connect with the sewer line that runs along Kirichwa River.
A 25km new sewer line will be constructed to service Dagoretti, kawangware, Mountain View and Kangemi areas where currently there are no sewer lines.