River/Flood Management
Causes of Flooding
Physical Causes
|
Human Causes
|
Flood Management
Hard Engineering - Flooding prevention using man made structures (tends to be expensive and cause problems further downstream)
Soft engineering - Flooding prevention by decreasing the discharge by adapting the channel environment (requires long term management)
Enlarging channel - increases the amount of discharge the river can hold decreasing the chance of the discharge exceeding the bankfull discharge.
Embankments / levees / flood walls / revetments - increases the amount of discharge the river can hold
Relief channel - a extra tributary leading away from the original channel redirecting excess water away from the flood prone area
New river channel - building a new river channel passes the river past urban environments in an enlarged channel.
Dams - controls the discharge of the river
Flood abatement - manages the land use in the upper course of the river using reforestation
Building above flood plain - decreases the damage to properties and allows for ground to be saturated reducing the magnitude of the flood
Soft engineering - Flooding prevention by decreasing the discharge by adapting the channel environment (requires long term management)
Enlarging channel - increases the amount of discharge the river can hold decreasing the chance of the discharge exceeding the bankfull discharge.
Embankments / levees / flood walls / revetments - increases the amount of discharge the river can hold
Relief channel - a extra tributary leading away from the original channel redirecting excess water away from the flood prone area
New river channel - building a new river channel passes the river past urban environments in an enlarged channel.
Dams - controls the discharge of the river
Flood abatement - manages the land use in the upper course of the river using reforestation
Building above flood plain - decreases the damage to properties and allows for ground to be saturated reducing the magnitude of the flood