India, Nov. 2 -- The Delhi Jal Board (DJB) plans to lay an 8.34-km sewer rising main through the Yamuna's ecologically sensitive floodplain to carry sewage from the Ring Road pumping station to the Okhla sewage treatment plant (STP).

The upcoming 1,800mm-diameter pipeline has received administrative approval of its estimated cost of Rs.148.90 crore from the DJB board, according to the project details.

The civic utility says the new line will help address recurring sewage overflows caused by three ageing gravity ducts, built in 1938, 1972 and 1992, which have become inadequate and silted up.

DJB has invited bids for laying rising main from Ring Road pumping station to Okhla STP through Yamuna flood plain alignment dated October 26. The ...