The Kerala Water Authority (KWA) has initiated tendering for 11 sewerage works in southern Thiruvananthapuram, including the replacement of more than 25-year-old pipelines and damaged manholes. The project is expected to benefit about 5,000 families and is planned to begin in the second week of November, according to a KWA sewerage section source cited by the Times of India.
The proposed works will increase the diameter of several existing sewer lines to improve their carrying capacity as household numbers and sewage loads rise in areas experiencing residential expansion. Administrative sanction has been received for the project, while the tendering process has been initiated.
A KWA source said the tendering process was expected to be completed by Monday, after which labour and machinery would be mobilised. “We hope to begin the work by the second week of Nov,” the source said.
At Anil Nagar in Karamana, the authority has proposed replacing a 150mm sewer line with a 250mm line and reconstructing damaged manholes. In Soorya Nagar and Sasthri Nagar in Aranoor, the planned work involves upgrading an existing 150mm line to 200mm and constructing manholes.
Similar upgrades from 150mm to 200mm are proposed at Sangeeth Nagar, including the Karur Vysya Bank by-road, S S Kovil Road and a branch road opposite President Bar in Thampanoor. At Thaliyal, KWA plans to replace a 150mm sewer line with a 300mm pipe and build manholes. Another work will relay the sewer main between Thampuranmukku and Miranda Junction using a 250mm pipe.
The project also covers the replacement of old and damaged sewer lines in Thamarabhagam, near Kumarapuram and Pattom. New sewer lines are proposed on branch stretches near Cotton Hill School at Vazhuthacaud, while other components include sewer-network rehabilitation and manhole-related works.
Manholes are access chambers built along underground sewer lines. They allow maintenance workers to inspect the network, clear blockages and carry out repairs. Reconstructing damaged manholes is intended to improve safe access and support maintenance of the sewerage system.
The KWA source said several existing lines were more than 25 years old and that the number of households in the identified areas had increased over time, placing additional pressure on the network. The planned works therefore combine capacity expansion with the repair or replacement of ageing components.
The authority’s immediate milestone is completion of tendering, followed by the mobilisation of labour and machinery. KWA has indicated that construction is scheduled to start in November across the identified locations.
