Bengaluru
oi-Madhuri Adnal
Several areas of Bengaluru that have faced recurring flooding and waterlogging for years have received new drainage infrastructure, with authorities taking up canal and drain works in Manyata Tech Park, Puttenahalli-Attur and HBR Layout.
One of the major interventions has been carried out near Manyata Tech Park on the Outer Ring Road, where a 1.6-km-long man-made canal has been constructed to connect the Veerannapalya Service Road with the Hebbal Canal. The new channel is intended to provide a clear route for rainwater and address the long-standing flooding problem in the area.
Bengaluru has implemented new drainage infrastructure, including a 1.6km canal at Manyata Tech Park and solutions in Puttenahalli-Attur and HBR Layout, successfully mitigating recurring flooding issues seen for years.
For nearly 10 to 15 years, rainwater would accumulate along around a one-kilometre stretch of the Hebbal Outer Ring Road and Veerannapalya Service Road, affecting Manyata Tech Park, Veerannapalya and surrounding areas. The waterlogging caused inconvenience to motorists and pedestrians, particularly during periods of heavy rain.
As part of the work, encroachments along the existing canal were cleared before the new 1.6-km channel was constructed. The rainwater can now flow through the channel towards the Hebbal Canal, reducing the possibility of water stagnating on the roads.
A separate flooding issue in Ramanashree California Gardens Layout in the Puttenahalli-Attur area was linked to sewage and rainwater flowing from the Ananthapura village side.
To prevent sewage from entering the lake, a 145-metre-long, 600-mm-diameter pipe has been installed with the consent of the private property owner. The intervention is aimed at improving the movement of sewage and rainwater and preventing the contamination of the lake.
In addition, a 60-metre-long canal has been constructed under the National Disaster Mitigation Fund to carry rainwater from the Ananthapura and Attur catchment areas towards Puttenahalli Lake.
The drainage improvements appeared to help during the recent rains. No flooding was reported in the area following the rainfall on September 30, according to the information provided by the authorities.
In HBR Layout, another long-standing obstruction to rainwater flow has been addressed near the BESCOM office on 18th Main Road in Block 5.
A 1.5-metre-diameter pipe connected to the HN-1 Valley had been obstructing the movement of rainwater for around eight to 10 years. The obstruction had contributed to water stagnation on the road during rains.
To resolve the issue, a new RCC culvert and drain have been constructed in accordance with the slope of the road and connected to the existing stormwater drain. The new connection is expected to improve the flow of rainwater and provide a permanent solution to water stagnation at the location.
