Project funded
by theEU–DGEnvironment
L
andsurfacerelevant
forapplication
Artificial surface
Agriculture land
Forest and semi-natural areas
Wetlands
F
inancialcosts
(C
apital
,
operation
&
maintenance
)
There is no information on costs associated with stream bed re-naturalisation,
which will be very case-specific and often implemented in conjunction with other
measures.
D
esign
Design parameters associated with stream bed re-naturalisation will vary con-
siderably depending on the length and size of the river. The measure is often
implemented along with the following NWRM: natural bank stabilisation, flood plain
restoration and management and river re-meandering.
S
cale
Stream bed re-naturalisation can play
a role at large scale (more than 1km
2
).
The stream bed represents the floor of the river, between each riverbank. In the past, many stream beds have been artificially reconstructed with concrete or
big stones, with the aim of, for example, flood prevention or supporting changes to agricultural practices. Such alterations modify flows and decrease habitat
for fauna and vegetation diversity. They lead to uniformed flows in the rivers and often having the effect of reducing travel time along the river. Stream bed
re-naturalisation involves
removing concrete or inert
construction from the stream bed, in order to avoid those damages and restore biodiversity.
Case studies:
HYDROMORPHOLOGY
©
h
t
t
p
s
:
/
/
c
h
a
n
d
r
a
s
h
e
k
h
a
r
a
s
a
n
d
p
r
i
n
t
s
.
w
o
r
d
p
re
s
s
.
c
o
m
