Consultants to submit Delhi Drainage Masterplan draft in 15 days: PWD minister

The Delhi government will soon finalise a drainage masterplan for the city, Public Works Department (PWD) Minister Parvesh Verma said on Saturday.

Working on the project since 2021, the department has divided the city into three basins — Najafgarh Basin, Barapullah Basin, and Trans-Yamuna Basin — and floated tenders for each of them.

“The draft reports from consultants will be submitted in the next 15 days for the Delhi Drainage Masterplan, after which it will be studied and the work will commence,” Verma said.

The consultants will present a fresh design for the drainage network with a view to making it capable enough to handle current and future stress, he added.

According to officials, Delhi’s drainage system, designed in 1976, is capable of handling only up to 50 mm of rain in a single day.

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While the Delhi Jal Board is responsible for sewer drains, the PWD takes care of stormwater drains along the main roads. The irrigation and flood control department is responsible for large drains, such as the Najafgarh drain.

In 2018, IIT-Delhi prepared a drainage master plan, but the government termed it “generic in nature” and said that it provided “no clear-cut actionable points suggested.”

In November 2021, the government decided that for a more comprehensive drainage master plan, experienced consultants would be hired, officials said.

“The comprehensive drainage master plan will provide us with solutions to resolve the waterlogging and drainage problems in Delhi. Currently, there are problems due to multiple agencies having drains in their jurisdiction and installing drains as per their own requirements, but as ground level varies from area to area, it creates problems. All of these aspects will be taken into account,” Verma said.