Departments Department of Irrigation Department of Irrigation DoI is a government organization, with a mandate to plan, develop, maintain, operate, manage and monitor different modes of environmentally sustainable and socially acceptable irrigation and drainage systems from small to larger scale surface systems and from individual to community groundwater schemes. Its ultimate aim is to provide year round irrigation facilities and increase the irrigable area of the country to higher limits.
Tweet Overflow of sewage onto the roads during the monsoon season is a common problem of Kathmandu denizens. That is because most houses lack a proper drainage system or are built without abiding by the house plans during construction. According to Sharma, many times the architectural plans are not abided by, while non-engi neered houses do not make septic tanks and soak pit for drainage.
He further says that due to ineffective monitoring, house owners attach their drainage directly to the sewers, which is illegal and creates problems for the environment. To cut costs, house owners avoid this stipulation and search for easy ways like directly dropping sewage into rivers or open sewers.
According to Shrestha, house owners themselves will suffer in the long run if a proper and sustainable drainage system is not constructed.
He further suggests making both septic tank and soak pit compulsory in order to avoid hassles afterwards like odour, blockage and overflow. As KMC has clearly mentioned that it is the sole responsibility of the consulting firm, we are mandating them to follow the proper plans for the house during construction.
Nowadays house owners seem more aware and most customers who come to us make the proper drainage system according to the law. According to experts, lack of central drainage system, water treatment plants and proper monitoring by the authorities has affected the entire drainage system in the valley.
This ultimately ends up by creating problems as the building advances with age. Sharma advises to clean and check drains once a year before monsoon.
The Himalayan Times,18 August The oldest sewers in the core area of Kathmandu, Lalitpur and Bhaktapur were built during the Malla period for conveyance of surface drainage and domestic sewage.
The sewerage system of the core area was further developed during – by the Rana dynasty. Manoj Sharma, an engineer and director of Building Design Authority, says, “There are provisions requiring a proper drainage system in the plan, without which, Kathmandu Metropolitan City (KMC) will not give permission to construct the house.“ However, he states that almost 85 per cent of individual houses do not follow these regulations.
Map of the combined drainage basins of the Brahmaputra (violet), Ganges (orange), and Meghna (green). The Brahmaputra (/ ˌ b r ɑː m ə ˈ p uː t r ə /) is one of the major rivers of Asia, a trans-boundary river which flows through China, India and Bangladesh.
KATHMANDU — It seems traffic-jams, pollution, and the problem of drinking water, and mismanaged road and drainage system are common phenomena for Kathmanduites.
Although such problems remain for long resulting in people’s suffering, no tangible solution is yet to be in sight. The capital, Kathmandu, is connected to Pokhara by a low Himalayan highway, and another highway through Kodari Pass gives Nepal access to Tibet. A highway running from Kathmandu through Hetaunda and Birganj to Birauni connects Nepal to Bihar state and the rest of India.
The Kathmandu valley of Nepal presents an ideal example of centripetal drainage pattern wherein the tributary streams of the Baghmati converge in the tectonically formed circular basin.
The depression formed at the top of Raigarh Dome in the Lower Chambal Basin has given birth to centripetal drainage .