A Look At Mobile Flood Gates
There are many types of flood gates used for various purposes throughout the world. These flood gates may be seen in levees and canals as mitered barriers that can be manually adjusted to allow water to flow to plants during certain parts of the year.
Other barriers are used to divert water on dams. Many dams have radial or fuse gates. Radial gates move automatically when water reaches a certain level in a dam and releases water under the sensor is lowered to the range that is safe for the dam. When there is a need for water from the dam, the barrier can be activated manually from a control room that is built within the dam.
Fuse gates are stationery pilings that release water when it reaches the top of a dam. These barriers do not allow an operator to control the flow of water from the dam and are not used in areas where there is a need to control the release of water.
Mobile flood gates are being used for a unique purpose. As the water level in oceans continues to rise, cities throughout the world are threatened by the influx of the rising water. These barriers have been designed to prevent flooding of major cities in the world.
The barriers are installed on the feeder river of a major city. When the water encroaches on the city, the gates are activated by control towers located near the gates. The water barriers lower to the level that is allowable for the water to rise without flooding the city.
These barriers have been used to protect some of the world's major cities since 1982. Construction of the barriers continues on cities that have been sinking for centuries due to encroachment from the sea.
There are some concerns by marine biologists regarding the continuous use of these types of mobile barriers to protect cities. One argument against mobile barriers is that the exchange of water providing important nutrients to sea life is reduced or stopped when the gates are activated.
Another concern about mobile barriers is related to the fact that this method of controlling water levels does not allow for the user of hydro-energy systems that could significantly reduce the need for fossil fuels in the cities where the barriers are used.
The size of the mobile barriers varies. In some areas they are used on a feeder river and require space that would otherwise be used by ships. This reduces the ability of docks to generate revenue on those docks.
In some cities the barriers are anchored in the ocean and are activated from stationery sites via radio transmission. These gates are activated when the tide rises each day and significantly reduce the ability of water to be exchanged enough to adequately support micro-organisms and sea life.
As the oceans continue to rise the use of mobile flood gates will continue to rise. The gates take, on average, between ten and twenty years to be completed. The planning for the size of the gates is based on predictions of future needs so that there is no need to replace the gates once they have been installed.
Other barriers are used to divert water on dams. Many dams have radial or fuse gates. Radial gates move automatically when water reaches a certain level in a dam and releases water under the sensor is lowered to the range that is safe for the dam. When there is a need for water from the dam, the barrier can be activated manually from a control room that is built within the dam.
Fuse gates are stationery pilings that release water when it reaches the top of a dam. These barriers do not allow an operator to control the flow of water from the dam and are not used in areas where there is a need to control the release of water.
Mobile flood gates are being used for a unique purpose. As the water level in oceans continues to rise, cities throughout the world are threatened by the influx of the rising water. These barriers have been designed to prevent flooding of major cities in the world.
The barriers are installed on the feeder river of a major city. When the water encroaches on the city, the gates are activated by control towers located near the gates. The water barriers lower to the level that is allowable for the water to rise without flooding the city.
These barriers have been used to protect some of the world's major cities since 1982. Construction of the barriers continues on cities that have been sinking for centuries due to encroachment from the sea.
There are some concerns by marine biologists regarding the continuous use of these types of mobile barriers to protect cities. One argument against mobile barriers is that the exchange of water providing important nutrients to sea life is reduced or stopped when the gates are activated.
Another concern about mobile barriers is related to the fact that this method of controlling water levels does not allow for the user of hydro-energy systems that could significantly reduce the need for fossil fuels in the cities where the barriers are used.
The size of the mobile barriers varies. In some areas they are used on a feeder river and require space that would otherwise be used by ships. This reduces the ability of docks to generate revenue on those docks.
In some cities the barriers are anchored in the ocean and are activated from stationery sites via radio transmission. These gates are activated when the tide rises each day and significantly reduce the ability of water to be exchanged enough to adequately support micro-organisms and sea life.
As the oceans continue to rise the use of mobile flood gates will continue to rise. The gates take, on average, between ten and twenty years to be completed. The planning for the size of the gates is based on predictions of future needs so that there is no need to replace the gates once they have been installed.
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