
Kolkata’s century-old brick sewer line under BB Ganguly Street has been refurbished and desilted, which officials say will spare Bowbazar and Lalbazar from severe waterlogging during the next monsoon. The 2.2-km line had become heavily silted and damaged, losing its capacity to carry storm water.

Kolkata Municipal Corporation’s planning and development department began the upgrade in August 2025 after the area was flooded that monsoon. Work completed ahead of deadline using jetting, suction and small bucket desilting machines to avoid disrupting daytime traffic on the narrow road.
Bowbazar resident Mani Bhowmick said residents lived in fear of inundation before every monsoon, and normal life suffered. He welcomed the civic effort and hoped the revamped network would finally bring relief.
The refurbished sewer line under BB Ganguly Street addresses a chronic flooding risk that has plagued Bowbazar for years, but the work was reactive, triggered only after the area was inundated during the 2025 monsoon. The repair relied on old brick infrastructure and manual desilting methods, raising the question of how long this fix will last against increasingly intense rain. Residents like Mani Bhowmick still carry the memory of past sinking neighbourhoods, and the real test will come next monsoon when the line must carry storm water without interruption.
Source: timesofindia.indiatimes.com
This brief was synthesised by AI from the source linked above. Methodology and corrections.