Floods 3.ppt
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Floods
GEOG 366
Effects
Benefits?
Adverse effects?
Flood Control Structures
Levees/Dikes
Dams
Sills
Riprap
Other Controls
Levees
A raised structure along
river banks to contain
flow within channel
Most are earthen
Some are synthetic
Levees
Levees
Levees
Dams
Barriers within the river
system
hydro-electricity
Diversion
Use reservoir
Flow regulation
Dams
Dams
Dams within the
Mississippi are used to
control flow
Allow flow regulation
Riprap
Armoring installed on
riverbanks, usually
composed of rock
Why would we armor
banks?
Riprap
Other Controls
Sills
Dedging
Submerged structures used to control bed erosion
and slope
Control of channel bottom by sediment removal
Clearing
Eradication of vegetation along riverbanks