The drains in the study area are broadly divided into two groups as per drain classification in Chennai. Macro Drains and Major Micro Drains: Macro Drains for Chennai are defined as the Natural drains that are maintained by PWD and Major Micro Drains are the drains maintained by Corporation of Chennai and Micro Drains: The drains maintained by Chennai Corporation are called as Micro drains. The Micro drain consists of Collector Drains, Arterial Drains, and Feeder Drains. Table-3.3: Details of Drains across Basins in Expanded Areas Drainage Collector Feeder Arterial Total (m) drain(m) drain(m) drain (m) 6464 Adyar 38011 23418 10650 78543 21783 Cooum 72484 48233 183686 Total 110495 71651 51836 28247 262229 Table-3.4: Abstract of Drains across basins and types in Expanded Areas (in m) Drainage Collector Feeder Arterial Macro & Total drain drain drain of Major Length Drains Micro Canals Adyar 38.011 23.418 10.62 6.46 3.66 82.169 Cooum 72.48 48.23 41.19 21.78 8.16 191.84 Kosasthalaiyar 109.812 230.562 27.44 24.34 8.772 400.926 Kovalam 96.933 172.546 41.508 37.422 11.031 359.44 Total 317.236 474.756 120.758 90.002 31.623 1034.375 Project Components This project involves construction of Collector drains, Feeder drains, Arterial drains and macro and major micro canal. Construction of Collector Drain Street Drains will ends in feeder drains – – Construction of Feeder Drain feeder drains will join arterial drains – Construction of Arterial Drain arterial drains will join in the Macro and Major – Micro Canals Macro and Major Micro Canal will join the river – Other components are construction of culverts and cross drainage works, Rain Water Harvesting structures, Silt catch traps etc., Implementation Plan and Arrangements
The drains in the study area are broadly divided into two groups as per drain classification in Chennai. Macro Drains and Major Micro Drains: Macro Drains for Chennai are defined as the Natural drains that are maintained by PWD and Major Micro Drains are the drains maintained by Corporation of Chennai and Micro Drains: The drains maintained by Chennai Corporation are called as Micro drains. The Micro drain consists of Collector Drains, Arterial Drains, and Feeder Drains. Table-3.3: Details of Drains across Basins in Expanded Areas Drainage Collector drain(m) Feeder drain(m) Arterial drain (m) Total (m) Adyar 38011 23418 10650 6464 78543 Cooum 72484 48233 21783 183686 Total 110495 71651 51836 28247 262229 Table-3.4: Abstract of Drains across basins and types in Expanded Areas (in m) Drainage Collector drain Feeder drain Arterial drain of Drains Macro & Major Micro Canals Total Length Adyar 38.011 23.418 10.62 6.46 3.66 82.169 Cooum 72.48 48.23 41.19 21.78 8.16 191.84 Kosasthalaiyar 109.812 230.562 27.44 24.34 8.772 400.926 Kovalam 96.933 172.546 41.508 37.422 11.031 359.44 Total 317.236 474.756 120.758 90.002 31.623 1034.375 Project Components This project involves construction of Collector drains, Feeder drains, Arterial drains and macro and major micro canal. Construction of Collector Drain – Street Drains – will ends in feeder drains Construction of Feeder Drain – feeder drains will join arterial drains Construction of Arterial Drain – arterial drains will join in the Macro and Major Micro Canals Macro and Major Micro Canal – will join the river Other components are construction of culverts and cross drainage works, Rain Water Harvesting structures, Silt catch traps etc., Implementation Plan and Arrangements
RP17140P1503950Box385392B00PUBLIC0.docx