# data[].attributes.body
https://www.theguardian.com/politics/2020/mar/12/policy-of-building-homes-on-flood-plains-to-be-reviewed
https://theconversation.com/the-inconvenient-truth-houses-built-on-floodplains-could-flood-22605

Policy of buildings on floodplains should be reviewed as it will eventually lead to flooding problem and increase the risks to homeowners and compounds danger to surrounding areas

# data[].attributes.attachment_link.title
Policy of building homes on flood plains to be reviewed

# data[].attributes.attachment_link.description
Changes may put in question more than 11,000 homes already planned for flood zones

# data[].attributes.body
Floodplains are easy to build because they are flat and close to amenities.  This floodplains makes the habitats for many creatures rare and unnatural as their natural habitat has been destroyed.
For example: building on floodplains in Kota Bharu Kelantan at Pelangi Mall Condominium

# data[].attributes.body
in iraq

# data[].attributes.body
hafiz

# data[].attributes.attachment_link.readable_text
Some floodplains are extraordinarily wide. The Barotse floodplain of the Zambezi River, for example, is a vast wetland stretching thousands of kilometers through Angola, Zambia, and Botswana. The Barotse floodplain includes the sandy Kalahari basin, which is waterlogged during the rainy season and an extension of the nearby Kalahari Desert during the dry season.

Geology of a Floodplain

The layered sediments of many floodplains can create important aquifers. Clay, sand, and gravel filter water as it seeps downward. Water purification systems often take advantage of this natural phenomenon in a process called bank filtration. In bank filtration, water is deliberately filtered through the banks or floodplain of a river or lake. Nearby wells then collect the filtered water, which is then ready for more intense purification processes.

One of the most important geologic features of a floodplain is its fluvial terraces. Fluvial terraces are step-shaped areas of land that flank the banks of a river or stream. Fluvial terraces mark the older, higher-elevation paths of the stream, before erosion and aggradation created the current mainstem of the stream or river. Fluvial terraces can mark the bluff lines-outer edges-of a floodplain.

While fill terraces are associated with aggradation, cut terraces are associated with erosion. Cut terraces are often formed below fill terraces, as water erodes sediment.

Older floodplains and river valleys can have many fluvial terraces. The Rhine Valley of Central Europe, for instance, has dozens of fluvial terraces created by the meandering Rhine as well as intense glaciation. Fluvial terraces in the Rhine allow geologists to examine more than 100,000 years of Europe's past.

Living on the Plain

Floodplains have dazzling arrays of biodiversity. These seasonal riparian wetlands boast greater biodiversity than the rivers themselves.

The Murray-Darling floodplain in Southeast Australia has remained remarkably unchanged for thousands of years. This floodplain is home to endemic species such as the hairy-nosed wombat, the wedge-tailed eagle, and several types of orchid.

Tugay forests are unusual ecosystems that stretch along the floodplains of Central Asia, including western China, the Stans, and Azerbaijan. Tugay forests are sometimes called riparian forests due to their proximity to winding rivers. Tugay forests often serve as green migration corridors through arid or semi-arid environments. Vegetation in tugay forests, such as willow, poplar, and tamarisk, is largely dependent on the water supplied by the floodplain's rivers and aquifers-not precipitation.

People and Floodplains
Transportation
The floodplains of the mighty Mississippi-Missouri river system in the central United States, for example, have served as vital transportation corridors for centuries. Native Americans deftly navigated the floodplains, making trade between the East Coast and West Coast of North America possible. During the 19th century, cities on Mississippi floodplains-St. Louis, Missouri; Memphis, Tennessee; New Orleans, Louisiana-became crucial centers of culture and commerce.
Flooding
Floodplains are natural flooding outlets for rivers. People, agriculture, and businesses on floodplains are always at some risk.

The most devastating floods of the 20th century occurred on the floodplains of the Yellow River in China, for example. The 1931 floods were some of the worst natural disasters ever recorded. The 1931 Yellow River floods followed years of drought that left the topsoil on floodplains brittle and eroded. Heavy rains swelled the river and forced it to break its banks, drowning wide swaths of land as the floodplain was unable to efficiently absorb the river's excess water or dissipate its energy.

Water meadows are also grasslands adjacent to floodways. Unlike flood meadows, water meadows are created and maintained by people. Water meadows are continuously irrigated through channels from the river. Water meadows were common features of the agricultural landscape in Western Europe throughout the 19th century. The nutrient-rich, silty soils of water meadows supported rich pastures used for livestock, as well as growing hay and other fodder.
Urban Planning Floodways and Floodplain Restoration
The Red River floodway, for example, can divert the path of the Red River around the urban area of Winnipeg, Manitoba, Canada. During flooding episodes, the channel can divert up to 4,000 cubic meters (140,000 cubic feet) of water per second before it reaches the Winnipeg area. The floodway carries this outflow around the city before rejoining the mainstem of the Red River in a less-populated area of the floodplain. Since its construction in 1968, the Red River floodway has saved Manitoba more than $32 billion in flood damage.

Houses and businesses that are built on floodplains often require more insurance coverage than buildings constructed on higher ground, because flood damage is more likely to occur.

A FIRM is a flood insurance rate map. FIRMs display Special Flood Hazard Areas within a floodplain. A Special Flood Hazard Area is simply an area that falls within boundary of a 100-year flood.

FIRMs are used to balance the risk of flood against the rate of insurance. FIRMs are divided into different zones based on the zone's proximity to the floodway. Buildings in the A- or V-zones, for example, are near the banks of the river. All buildings in A zones are required to have flood insurance due to their extremely high risk of flood damage. The floors and service facilities of A-zone buildings (such as air-conditioning units and plumbing) must meet a "base high flood elevation." Base high flood elevations vary depending on the floodplain and risk posed by a 100-year flood. In the Charlotte, North Carolina, floodplain, for example, the base high flood elevation is one foot above the expected depth of floodwater in a 100-year flood.

There are strict rules for constructing or remodeling buildings in the A-zone of a floodplain. Basements in A-zones must not be used as living spaces, for example.

# data[].attributes.attachment_link.description
A floodplain is a generally flat area of land next to a river or stream.

# data[].attributes.body
No building suppose to be on floodplains due to :
1. Flood will damage all the structures and infrastructures.
2. Loss of belongings.

https://www.freemalaysiatoday.com/category/highlight/2021/01/19/4-ways-to-end-malaysias-never-ending-flood-problem/

# data[].attributes.body
There are many northern areas in Iraq, such as Mosul, that are subject to floods that destroyed many buildings

# data[].attributes.body
As an engineer, we have proper strategies such as desk study, site investigation and etc. After doing all things, the engineer will come out with the solution to keep on building on floodplains. There are a few floodplain management strategies from United State - Modify human susceptibility to flood damage , modify the impact of flooding, preserve and restore natural resources.

# data[].attributes.body
The result is an increase in devastating flood damage, degradation of Puget Sound, and steep declines in fish and wildlife populations.
Jay

# data[].attributes.attachment_link.readable_text
"Where will we put the next million people moving to Puget Sound?" I was asked this question recently by a business lobbyist concerned that new floodplain protection requirements would make building in flood-prone areas more difficult. His question was driven by projections that the region's population is projected to grow by 30% in the next 30 years. But his question also suggested that floodplains are a good place to construct new homes and businesses. Well, are they?

The Costs of Flooding

Since 1990, Puget Sound has been ravaged by 15 major flood disasters-that's more than one every other year. As outlined in our new report, Changing Course: Why Protecting Floodplains is Good for People and Wildlife, thousands of homes have been damaged or destroyed and at least 58 people have died due to flooding. These floods cost taxpayers more than $1.37 billion in clean up and recovery costs.

Humans are not the only ones affected by floodplain development. Since 1900, Puget Sound Chinook salmon populations have declined 93% and nine runs of Chinook have gone extinct. Orca whales, which eat primarily salmon, have declined by half. Both are now under federal protection through the Endangered Species Act, but habitat and populations continue to decline.

Developing in Floodplains

Floods are a natural occurrence, but flood damage needn't be. One of the reasons Puget Sound experiences so much damage from flooding is that we've put so many people and buildings in harm's way. More than 100,000 homes and business have been built in floodplains in this region.

By filling floodplains and leveeing rivers, we've diminished the ability of the land to absorb large storms. More than 90% of our floodplains and wetlands have been lost to development, agriculture and other human activities. Of the floodplains that remain, more than 70% are in poor condition. The result is an increase in devastating flood damage, degradation of Puget Sound, and steep declines in fish and wildlife populations.

Solutions for Our Floodplains

As scientists consider how to address salmon declines and larger storms, they are coming to the conclusion that protecting and restoring floodplains is one of the most important things we can do to help salmon and orca while reducing risk for people.

The first step is to prevent more harmful development in flood-prone areas. In other words, we must stop making the problem worse. The second step is to fix our past mistakes by repairing already damaged floodplains. We can do this by buying out frequently flooded properties, setting back or removing levees to widen the river and floodplain, and restoring floodplains to recreate critical ecological functions.

So, is putting Puget Sound's next million people in floodplains a good idea? So far, building in floodplains has been bad for people, bad for taxpayers, and bad for fish and wildlife. The question should not be, where are we going to put the next million people. The question should be, where are we going to put them, safely?

Finding a safe home for Puget Sound's next million people will mean building smarter. Restoring and protecting our floodplains will mean that Puget Sound's next generation will not just be safer from floods; they will also still be able to see salmon and orca leaping from our waters.

For more information, be sure to read our report: Changing Course: Why Protecting Floodplains is Good for People and Wildlife, and watch our video here.

# data[].attributes.attachment_link.title
Is Building in Floodplains a Good Idea? * The National Wildlife Federation Blog

# data[].attributes.attachment_link.description
"Where will we put the next million people moving to Puget Sound?" I was asked this question recently by a business lobbyist concerned that new floodplain protection requirements would make building in flood-prone areas more difficult. His question was driven by projections that the region's population is projected to grow by 30% in the next 30 years.

# data[].attributes.body
In Sabah, 4,221 people were displaced in Tenom district and 574 people in Beaufort district as of 22 May, 2021. NADMA said 42 evacuation centres have been set up to house those displaced.

Meanwhile in Sarawak state, 426 people had moved from their homes after flooding in Limbang District as of early 22 May. Eleven evacuation centres have been set up by authorities to house those displaced.

The Padas River at Beaufort is well above the danger mark (8.7 metres) standing at 9.56 metres as of 22 May.

# data[].attributes.body
It is not good to continue building in the flood plains, because they are dangerous areas and are more prone to floods that have caused the death of many people.
An example of these floods and considered one of the worst natural disasters in history were river floods, and one of the worst natural disasters was the floods of China that occurred in 1931 AD, where it is estimated that they killed millions, and the second-worst natural disaster in history is the yellow flood that preceded the flood of China  It was in the year 1887, which killed nearly a million people.

# data[].attributes.headline
There are many northern areas in Iraq, such as Mosul, that are subject to floods that destroyed many buildings

# data[].attributes.subject
There are many northern areas in Iraq, such as Mosul, that are subject to floods that destroyed many buildings

# data[].attributes.headline
Floodplain should not be built use it for recreational activities such as jogging track, fishing activities, agricultural such as plant or vegetables that releases nutrient to the river. This consep works well for the River of Life.

# data[].attributes.subject
Floodplain should not be built use it for recreational activities such as jogging track, fishing activities, agricultural such as plant or vegetables that releases nutrient to the river. This consep works well for the River of Life.

# data[].attributes.body
This prezi slide give some rough idea about the effect of development on floodplains area.
-Priveena

# data[].attributes.attachment_link.title
Why building on Floodplains is a bad idea

# data[].attributes.attachment_link.description
Hydrological changes resulting from the construction of dams and reservoirs.

# data[].attributes.body
imran

# data[].attributes.body
No building on Floodplains. Example Kampung Sirih in Kelantan was badly hit by flood