Kathmandu, the capital city of Nepal, has been experiencing frequent flooding in recent years, with the latest incident occurring on Ashar 29, 2083. The city’s Maitighar area was inundated, causing difficulties for commuters and pedestrians.
The National Disaster Risk Reduction and Management Authority (NDRRMA) attributes the flooding to a combination of factors, including the city’s unplanned urbanization, encroachment of rivers and streams, and lack of proper drainage systems.
A study conducted by the NDRRMA found that the Maitighar area’s flooding was caused by the construction of multi-story buildings on vacant land, which has reduced the city’s water absorption capacity. The study also found that the city’s drainage system is inadequate, with many rivers and streams being encroached upon by human settlements.
The Kathmandu Valley, which includes the cities of Kathmandu, Lalitpur, and Bhaktapur, has seen rapid urbanization in recent years, with the population growing from 5.98 lakh in 2048 to 25 lakh in 2068. The valley’s urban area has increased by 386% since 1990, according to a study by the World Weather Attribution.
The study also found that the valley’s natural water cycle has been disrupted due to urbanization, leading to an increased risk of flooding. The city’s drainage system is unable to cope with the increased rainfall, resulting in frequent flooding.
The Bagmati River, which runs through the Kathmandu Valley, has also been affected by urbanization. The river’s course has been altered, and its banks have been encroached upon by human settlements, leading to increased flooding.
The government has been criticized for its lack of planning and management in addressing the city’s flooding issues. The NDRRMA has recommended that the government take immediate action to address the city’s drainage issues and prevent further flooding.
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