Drainage is the system or process by which water or other liquids are drained from a place. Line the pots with pebbles to ensure good drainage. The drainage system has collapsed because of too much rain. Synonyms: sewerage, waste, sewage More Synonyms of drainage.
What is a drainage on a mountain?
A drainage basin is an area of land where all precipitation that falls will drain or flow downhill into a specific stream. … Drainage basins are often surrounded by steep mountain ridges or hills and have a drainage divide, which is a line that separates two adjacent drainage basins.
What is drainage in construction?
Drainage is the artificial removal of water, both surface and sub-surface. Drainage is often a major element of civil engineering and construction projects and is necessary to avoid flooding and other damage. Typically, effluent is conveyed by drains to sewers, and from sewers to a suitable outfall or treatment plant.
What is drainage in social studies?
INTRODUCTION: The term drainage describes the river system of an area. Small streams flowing from different directions come together to form the main river, which ultimately drains into a large water body such as a lake or a sea or an ocean. The area drained by a single river system is called a drainage basin.What is drainage system in Harappan civilization?
Drainage System: The drainage system of the Harappan cities was the best known to the world in ancient times. The brickwork prevented the dirty water from leaking. Wooden screens stopped the solid wastes from being washed away with the water. Drains were built on either side of the roads.
What is drainage Class 9?
‘Drainage’ is a term that defines an area’s river system. A drainage basin or river basin is an area that is drained by a single river system. A water division is considered an upland that divides two irrigation systems that are adjacent to each other.
Are oceans drainage basins?
BasinMediterranean SeaTypeMediterranean seaContinentMultipleDrains toAtlantic OceanBasin Area km28,500,000
What is dendritic drainage pattern in geography?
The dendritic pattern develops where the river channel follows the slope of the terrain. The pattern develops in areas where the rock beneath the stream has no particular structure and can be eroded equally easily in all directions.What is drainage area of a river?
The term “drainage area” is defined as the land area where precipitation falls off into creeks, streams, rivers, lakes, and reservoirs. … The drainage area for a river basin is measured in a horizontal plane enclosed by the drainage divide outlining the basin.
What are drainage features?drainage feature means any natural or manmade structure, facility, conveyance or topographic feature which has the potential to concentrate, convey, detain, retain, infiltrate or affect the flow rate of stormwater runoff.
Article first time published onWhat is drainage design?
The detailed drainage design is a plan or set of plans used to inform the contractor of the requirements for surface water drainage onsite, as it enhances the conceptual SuDS strategy proposed as part of the drainage strategy. … Detailed drainage design can also include foul (waste) water drainage layout for a Site.
What is drainage soil?
Soil drainage is a natural process by which water moves across, through, and out of the soil as a result of the force of gravity. … Surface drainage diverts excess water from the soil surface directly to streams, thereby reducing the amount of water that will move into and possibly through the soil.
Where were the drainage system found?
Mohenjo-daro Street with Drains. The drainage system was one of the most remarkable features of the Mature Harappan city.
Who invented drainage?
The invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple, who died in 1753.
How was the drainage system of Mesopotamian civilization?
Drains and clay pipes were instead found in the inner courtyards of the Ur houses and it is thought that house roofs sloped inwards and rainwater was channelled via the drainpipes into sumps* in the inner courtyards.
Which river has the largest drainage basin?
As of 2021, the Amazon basin, located in northern South America, was the largest drainage basin in the world. The Amazon River and its tributaries drain an area nearly seven million square kilometers.
What is a river or drainage basin?
drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. … The boundary between drainage basins is a drainage divide: all the precipitation on opposite sides of a drainage divide will flow into different drainage basins.
Which rivers drain in Atlantic Ocean?
Amazon River, drains into the Atlantic Ocean. Mississippi, drains into the Gulf of Mexico. Orinoco River, drains into the Atlantic Ocean. Saint Lawrence River/Fleuve Saint-Laurent, drains into the Gulf of St.
What is a area drain?
Area Drains are designed to collect excess rain and storm water runoff from roofs, sidewalks, parking lots, and paved streets.
What is drainage pattern give example?
Rectangular Drainage Pattern– These are found in regions that have undergone faulting. It develops in the area that have very little topography and a system of bedding planes, fractures, or faults that form a rectangular network. Example – streams found is the Vindhyan Mountains of India.
What is drainage density in geography?
The drainage density is the measure of the length of stream channel per unit area of drainage basin. Mathematically it is expressed as: drainage density = stream length / basin area. A drainage network is a system of interconnected stream channels found in a drainage basin.
What is drainage system in Nigeria?
Drainage systems are constructed to ensure that waste water and sewage is transported neatly to disposal points, thereby keeping the environment well drained and free of waste. …
What is natural drainage?
Natural drainage means a drainage consisting of native soils such as a natural swale or topographic depression which gathers or conveys run-off to a permanent or intermittent watercourse or waterbody.
What is random drainage?
A random field drain system. ( Source: Schwab et al., 2005) The depth is determined primarily by the topography of the area, outlet conditions, and capacity of the channel. The grade in the channel should be such that the velocity does not cause erosion or sedimentation.
Why is drainage important for plants?
Drainage ensures that the soil is properly aerated. If you have excess or standing water it can choke your crops. Drainage reduces soil and nutrient loss from runoff and can help avoid soil erosion. Drainage on hill slopes helps to reduce the risk of soil slippage.
What are the 3 types of drainage?
- Surface Drainage System. Surface drainage systems remove excess water from the land’s surface through channels or ditches. …
- Subsurface Drainage System. …
- Slope Drainage System. …
- Downspouts and Gutter Systems.
How were the drains of the cities?
They were laid out carefully in straight lines. Each drain had a gentle slope. Thus, water could flow easily through it. Drains in houses were connected to those on the streets and smaller drains led to bigger ones.
How was the drainage system of the Harappan cities Class 6?
The drainage system of the cities was very well planned and developed. Drains were built alongside the road. Kitchens and bathrooms had drains which were connected to the street drain. The drains were covered with brick slabs which were cleaned from time to time.
What are the features of drainage system in Harappan cities?
(i) The drainage system was planned very carefully. (ii) Road and streets were laid out along an approximate grid pattern intersecting at right angles. (iii) Streets were laid out with drains and he drains were covered. (iv) The houses were built along them.
