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near the present location of
Shihmen Dam. The canal enabled a more constant water supply for Taoyuan and effectively returned water to old channels of the river that had been cut off thousands of years ago. Due to urbanization, the Dahan river is increasing in importance as a domestic water source, while the use for irrigation has decreased.
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The
Taiwanese government has proposed the construction of a mega-dam on the Takekan Creek known as Gaotai Dam (高台壩) to trap silt and provide additional water storage. This plan has been criticized due to its potential environmental damage, and its limited useful life, because the new reservoir would
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the Dahan River and caused it to flow northeast. As a result the Dahan River cut a canyon through the alluvial sediments for more than 30 kilometres (19 mi) to reach the new lower elevation. The former channels of the Dahan River remain as "beheaded" streams that flow only seasonally across the
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Due to the lack of a natural water source for the
Taoyuan plateau, thousands of artificial ponds were constructed to capture summer rainfall for irrigation, making the area one of Taiwan's most productive agricultural regions. In 1928 the Taoyuan Canal was dug to divert water from the Dahan River
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The
Shihmen Dam, one of Taiwan's first multi-purpose water projects, was completed in 1964. It provides flood control, irrigation, domestic water supply and hydroelectricity for much of Taoyuan and New Taipei City. The dam has had problems with
384:. It flows north through a narrow gorge and receives the major tributaries of Sanguang Creek (三光溪), Lala Creek (拉拉溪), and Xibuqiao Creek (西布喬溪) from the east. At the Dongyanshan (East Eye Mountain) Recreation Area in
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485:) have been built along the Dahan River upstream in order to block silt and extend the useful life of the Shihmen reservoir. Chief among these is the
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in 2007, destroying Baling village and washing 10,000,000 cubic metres (350,000,000 cu ft) of silt into the Dahan River.
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of the Dahan River, created by sediments eroded from the mountains. About 30,000 years ago, tectonic movement caused the
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to empty into the Taiwan Strait about 20 kilometres (12 mi) west of the mouth of the Tamsui River. The
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412:(三峽溪). It continues to flow northeast across New Taipei City until its confluence with the
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storms and earthquakes in the upper Dahan River drainage. About 123 "sabo dams" (
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town. The
Takekan, the larger of the two is sometimes considered part of the
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Map showing the location of the Dahan River within the Tamsui River watershed
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376:, at the confluence of Takekan Creek (大嵙崁溪) and the Baishi Creek (白石溪) near
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build-up since its construction, due to the high rate of erosion caused by
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352:(泰崗溪). An alternative historical name for the Dahan is the
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The Dahan River once flowed north through the area of
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Dahan River and Luo-fu bridge above
Shihmen reservoir
326:. The upper reaches of the Dahan are also known as
447:to drop in elevation, and the Tamsui River system
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248:13,800 m/s (490,000 cu ft/s)
396:. Below the dam it flows northeast across
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228:59.62 m/s (2,105 cu ft/s)
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238:22.94 m/s (810 cu ft/s)
194:1,163 km (449 sq mi)
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314:for 135 km, before it joins
497:also eventually fill with silt.
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388:, it turns west and flows into
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134:3,420 m (11,220 ft)
98:Physical characteristics
174: • elevation
130: • elevation
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599:Landforms of Hsinchu County
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212: • location
154: • location
118: • location
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364:The Dahan River begins on
244: • maximum
234: • minimum
224: • average
604:Landforms of Taoyuan City
427:Dahan River in New Taipei
392:, which is formed by the
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524:List of rivers in Taiwan
408:, where it receives the
186:135 km (84 mi)
16:River in Northern Taiwan
609:Landforms of New Taipei
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306:and then flows through
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178:10 m (33 ft)
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374:Shei-Pa National Park
372:, near the border of
360:Geography and geology
545:philip.pristine.net
37:25.0426°N 121.4840°E
614:Landforms of Taipei
302:. It originates in
33: /
549:2017-01-13 at the
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416:, which forms the
65:In New Taipei City
390:Shihmen Reservoir
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163:Sanchong District
42:25.0426; 121.4840
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594:Rivers of Taiwan
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312:New Taipei City
294:, also spelled
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570:. Retrieved
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512:Luofu Bridge
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471:
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445:Taipei Basin
441:alluvial fan
433:Taoyuan City
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418:Tamsui River
410:Sanxia River
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353:
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327:
322:to form the
308:Taoyuan City
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159:Tamsui River
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507:Daxi Bridge
487:Junghua Dam
394:Shihmen Dam
291:Tāi-hàn-khe
264:Dahan River
54:Dahan River
40: /
28:121°29′02″E
588:Categories
563:"新北市觀光旅遊網"
530:References
483:check dams
340:Pe̍h-ōe-jī
286:Pe̍h-ōe-jī
191:Basin size
25:25°02′33″N
452:plateau.
382:main stem
203:Discharge
572:16 April
567:新北市觀光旅遊網
547:Archived
518:See also
449:captured
281:Dàhàn Xī
83:Location
501:Bridges
479:typhoon
378:Jianshi
356:(石門溪).
332:Chinese
268:Chinese
88:Country
386:Fuxing
342::
334::
320:Taipei
300:Taiwan
288::
278::
276:pinyin
270::
206:
183:Length
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107:Source
92:Taiwan
543:Image
348:) or
296:Tahan
217:mouth
144:Mouth
574:2023
475:silt
456:Dams
336:大嵙崁溪
310:and
262:The
404:of
368:in
318:in
272:大漢溪
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565:.
420:.
338:;
284:;
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165:,
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330:(
266:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
