Sewage blockages and flooding disrupt Bengaluru’s ORR

The unchecked discharge of untreated or partially treated sewage into roadside drains is causing significant problems across Bengaluru, including flooding, damaged roads, and rising health risks. Residents and civic activists are raising concerns about this violation of civic norms, which is harming public health and the city’s infrastructure.

The Mahadevpura Task Force (MTF) revealed that areas like the Outer Ring Road (ORR) near Marathahalli are among the worst affected. During recent inspections, engineers from the Bruhat Bengaluru Mahanagara Palike (BBMP) found that sewage, silt, and debris had clogged the roadside drains. This blockage has resulted in waterlogging on the main road and service lanes, severely disrupting traffic and businesses in the area.

It was pointed out that long concrete slabs, which are 8 to 10 metres in length, cover these drains, making them difficult to clean.” To address the issue, the civic body has decided to dismantle these slabs to clear the drains. However, this process is time-consuming and labour-intensive, adding to the struggles of commuters and local businesses. The impact of untreated sewage on the community is significant. Stagnant water in the drains and overflowing onto the roads has led to a sharp increase in mosquito-borne diseases,” said a member of MTF.

Overflowing sewage is also weakening roads, causing frequent potholes and damage that require costly repairs. For commuters, waterlogged roads mean longer travel times and a higher risk of accidents.

The problem extends beyond the roads. Polluted water from these drains often flows into the city’s stormwater drains (Rajakaluves) and nearby lakes, contaminating water bodies and farmlands in Varthur, Hosur, and Krishnagiri.

BBMP officials have stressed the importance of stopping this illegal disposal of sewage. They have urged residents, commercial establishments, and apartment complexes to take immediate steps to prevent further damage. Solutions include installing soak pits or sewage treatment plants (STPs) and connecting to the BWSSB (Bangalore Water Supply and Sewerage Board) underground drainage network wherever possible.

As repair work continues, BBMP plans to issue a traffic advisory for the ORR to minimise disruptions. Residents hope that these measures will bring some relief and a long-term solution to the city’s growing sewage problems.