Question

dranage system harrapan civilaz​

Answer 1

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The most unique aspect of planning during the Indus Valley civilization was the system of underground drainage. The main sewer, 1.5 meters deep and 91 cm across, connected to many north-south and east-west sewers. It was made from bricks smoothened and joined together seamlessly.

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Answer 2

Answer:

The ancient Indus Valley Civilization of South Asia, including current day Pakistan and Northwest India, was prominent in infrastructure, hydraulic engineering, and had many water supply and sanitation devices that were the first of their kind. Most houses of Indus Valley were made from mud, mud bricks or clay bricks. The urban areas of the Indus Valley civilization included public and private baths. Sewage was disposed through underground drains built with precisely laid bricks, and a sophisticated water management system with numerous reservoirs was established. In the drainage systems, drains from houses were connected to wider public drains. Many of the buildings at Mohenjo-daro had two or more stories. Water from the roof and upper storey bathrooms was carried through enclosed terracotta pipes or open chutes that emptied out onto the street drains.[1]

The earliest evidence of urban sanitation was seen in Harappa, Mohenjo-daro, and the recently discovered Rakhigarhi. This urban plan included the world's first urban sanitation systems. Within the city, individual homes or groups of homes obtained water from wells. From a room that appears to have been set aside for bathing, waste water was directed to covered drains, which lined the major streets.

Devices such as shadoofs and sakias were used to lift water to ground level. Ruins like Mohenjo-daro in Pakistan and Dholavira in Gujarat in India had settlements with some of the ancient world's most sophisticated sewage systems. They included drainage channels, rainwater harvesting, and street ducts.

Stepwells have mainly been used in the Indian subcontinent.

A number of courtyard houses had both a washing platform and a dedicated toilet / waste disposal hole. The toilet holes would be flushed by emptying jar of water, drawn from the house's central well, through a clay brick pipe and into a shared brick drain, that would feed into an adjacent soakpit (cesspit). The soakpits would be periodically emptied of their solid matter, possibly to be used as fertilizer. Most houses also had private wells. City walls functioned as a barrier against floods.

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