Transcript Floods 3.ppt

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