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 Contents
of the Plan
- Yuansantze Flood Diversion Project:
Construction of a weir, utilizing a spillway
to shunt the flood of the Keelung River as
it flows into East China Sea, thus lowering
the downstream flood level.
- Depression Area Flood-Control
Segmented Constructions: Dividing the depression
area of Taipei County into eleven flood-control
segments, integrating the constructions of
dikes, improvement on branch outlets and bridges,
and protective measures on gap emergencies.
- Coordinated Constructions:
Improvement construction of Badu Railway Bridge
peripheral area and construction of Yuansan
Spillway.
- Hillside Conservation:
Work on forest conservation and soil conservation
of upstream storage area of Yuansantze Floodway,
reducing the storage area’s earth-flow into
Keelung River.
- Other Projects: Planning
and designing of flood-detention areas of
Keelung River's Yuansan bottleneck segment,
flood areas, and subsequent executable substitute
plans.
- Flood Forecast and Inundation
Alarm Systems: The hydraulic observatories
within the basin feeding instant data back
to the computer data base of Danshuei River
basin’s flood control command center, providing
the public with Internet inquiries and central
supervision, and flood forecast software for
forecasting the changes of subsequent water
level, which serve as decision basis for withdrawal
judgment of the people in the possible flooding
areas.
Project
Duration
From July 2002 to May
2005
Source of Budget
The early stage plan has
a special budget of $31.61573 billion NT dollars.,
budgeted by
the central government according to the “Special
Regulations on Keelung River Basin Remediation,?
and sanctioned by the Legislative Yuan in
the interim meeting on July 17th, 2002.
Anticipated
Results
The project enables the
bureau to control the rainfall of Huoshaoliao
and 18% area of the basin, avoid levying the
extensive private lands around middle and
downstream areas in Sijhih, improve the bridges,
divert 1310 CMS in peak from upper Keelung
River with 200-year-frenquency flood 1620
CMS into the East China Sea, and lower the
water level of the downstream Keelung River
by 1.5 meters in average (3.13 meters in average
in Rueifang segment).
After the completion of all the flood-control
segments, the segment of Keelung River below
Houtong’s Jieshou Bridge can reach the 200-year-flood
frequency protection criteria, resisting floods
of Nari Typhoon scale. It protects 713 hectares
of area in Taipei County and 316 hectares
of area in Keelung City.
 
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