So far the Keelung River only
reaches the initial protection criteria of the 10-year
flood frequency, and has not reached the protection
standard for the peak flood flow rate in the original
plan. In recent years, typhoons often caused floods
in the depression areas of Sijhih, Rueifang and
Keelung. Using block flood-mitigation method for
the aforementioned areas, the Water Resources Agency,
MOEA, has planned to integrate the block’s related
constructions, such as dike construction, drainage
improvement of branches, bridges improvement, and
gaps provisional measures, etc. for coordinated
execution. The set up of the flood control zones
will protect 713 hectares of areas in Taipei County
and 316 hectares of areas in Keelung County. Its
budget totals about 23.4 billion NT dollars, including
about NT$14.1 billion for river dikes construction
in the depression areas, about NT$2.4 billion for
branches drainage improvement, about NT$4.5 billion
for construction and maintenance of pumping stations,
and about NT$0.8 billion for bridges improvement.
The flood-control zones project is divided into
11 blocks of construction. To reach the 200-year
flood mitigation criteria after the completion of
flood diversion, our office coordinates with other
river management offices to execute the project.
It is estimated to finish the main construction
between June and September of 2004.
The following chart shows the blocks and their respective
management offices.
 Chart
of the Zones and the Respective Management Offices
[Chart of the Zones and the Respective Management Offices]
| Order |
Flood-mitigation
Block |
Range
of Protection |
Area
(hectares) |
Responsible
Unit of the Water Resources Agency |
One |
Ciaodong |
From the downstream of Baochangkeng River
outlet on the west bank of Keelung River to
the upstream area of the Highway No.3 Bridge |
190 |
The Tenth River Management Office |
| Ciaodong |
From Chang-an Bridge downstream, east bank
of Keelung River, to the downstream of Beigang
River outle |
90 |
The First River Management Office |
| Dingnei |
From Cukeng River outlet on the Rueiching
Bridge upstream, west bank of Keelung River,
to the upstream of Dingnei Railway Bridge |
32 |
The Eighth River Management Office |
Two |
Siangjhang |
Keelung River from the Sijhih tollbooth
to the east bank of Ciansiang Bridge |
76 |
The Sixth River Management Office |
| Baifu |
Keelung River from Wufu Bridge to the east
and west banks of Ciansiang Bridge |
82 |
The Tenth River Management Office |
| Lioudu |
Keelung River from Liouhe Bridge to the
west bank of Wufu Bridge |
80 |
The Tenth River Management Office |
| Cidu |
Keelung River from Dahua Bridge to the west
bank of Liouhe Bridge |
64 |
The Ninth River Management Office |
| Dahua |
Keelung River from Dahua Bridge to the east
bank of Liouhe Bridge |
20 |
The Second River Management Office |
Three |
Beishan |
Keelung River from Neigou River west bank
to the east bank of Highway No.4 Bridge |
192 |
The Seventh River Management Office |
| Jhangshu |
Keelung River from Beishan Grand Bridge
to thewest bank of Highway No.4 Bridge |
107 |
The Fifth River Management Office |
| Rueifang |
From Houtong Jieshou Bridge to the junction
of Rueifang and Keelung City |
96 |
The Tenth River Management Office |
The Area of each flood-mitigation
block is illustrated in the following diagrams:
(a) and (b).
Diagram (a): Locations of the Flood-mitigation
Blocks (including Block(1) to Block(5)) of the
Keelung River Overall Improvement Project (Early
Stage Project)
Diagram (b): Locations of the Flood-mitigation
Blocks (including Block(6) to Block(10)) of the
Keelung River Overall Improvement Project (Early
Stage Project)
 
|
