Environmental Engineering Reference
In-Depth Information
Fig. 4.2
Vertical aerial view of the Wallasea Island site on the east coast of the UK.
given site. The main functions of creek channels
(French 1996) are to:
.
supply and disperse fine sediment;
.
provide efficient drainage and de-watering of
sediments;
.
dissipate tidal energy inputs.
The major creek channels within the site can be
designed using empirical relationships between
cross-sectional area and tidal prism or discharge
(as proposed by O'Brien 1931; Myrick and Leopold
1963). For creeks within saltmarshes this process
can be reduced to consideration of the plan area by
Fig. 4.3
Initial flooding of the first scheme on theWallasea site, where the designmade use of the existing field drains.
(See the colour version of this figure in Colour Plate section.)
