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Yuen
Long Bypass Floodway
Title
of EIA Yuen Long Bypass Floodway
Completion Date June 1998
EIAO Register Office Reference EIA-004/1998
Project Proponent Territory Development Department
Project Description The project is to construct a bypass floodway
for diverting part of the flows entering the Yuen Long Nullah
drainage system from the south of Yuen Long into the Kam Tin
River in order to reduce the risk of flooding in Yuen Long
Town. It involves the following works,
| i. |
a
3.8km channel extending from the Yuen Long Main Nullah
in the south to the Kam Tin River in the North; and |
| ii. |
an
inflatable dam and a pumping station at the downstream
end of the project just prior to connection with the Kam
Tin River. |
Recommended
environmentally friendly design measures of channels
The measures
include (Figures 5, 6 and
7),
| i. |
use
of grasscrete lining the sides and base of the channel
to provide a habitat for insects and birds; |
| ii. |
creation
of marschcrete areas to provide a medium for planting
grass, reeds, sedges and other freshwater plants and to
increase species diversity; and |
| iii. |
planting
of trees along the channel banks and adjacent to the access
roads and footpaths to provide a tree corridor for amenity,
wildlife and linkage between various habitats. |
Figure 5 <click the figure above to zoom in>
Figure 6 <click the figure above to zoom in>
Figure
7 <click the figure above to zoom in>
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