Carello's Levee
Modifying
the shape of Carello's Levee
This levee protects a residential suburb but also reduces
the flow of the main river channel.
Dredging
the river channel
By removing accumulated river silt from the main channel,
river flow is increased. But dredging lasts only a short
time and is expensive. Flooding rivers carry huge volumes
of sediment. Sediment load can only be reduced by revegitating
river banks upstream.
Impact
of Carello's Levee on once in two year flood
The levee protects those on the left bank but puts those
on the right bank at greater risk.
Impact
of Carello's levee on once in ten year flood
In a once in ten year flood a considerable area od the right bank is inundated to protect a small but populated area on the left bank.
