踏溯台南

踏溯台南

文學院 通識教育課程

The Narrations of Water Resources, Agriculture and Livestock Industries

Route Introduction

 

 Wu-Shan-Tou Reservoir

No. 68-2 Ja-Nan Li, Guan-Tian District, Tainan City

 

    In order to solve the drought problems that left the vast Jia-Nan Plain with only dry work, Hatta Yoichi started to investigate and design the engineering work of Jia-Nan Irrigation Ditch. The construction of the Wu Shan-Tou Reservoir was started in 1920 and was fully completed in 10 years. The reservoir catchment area covers 58 square kilometers with a water depth of 32 meters and about 150 million cubic meters. It was the third-largest reservoir in the world and the largest reservoir in Asia. The dam is constructed with the low-lying valley surrounded by Guan-Tian District, Liu-Jia District, DaNei District, and Dong-Shan District of Tainan City. The maximum height of the dam is 56 meters, the dam crest is 9 meters wide, and the dam crest's length is 1,273m with a bottom about 303 meters wide. A bird's view will see the water catchment area in the coral reef's shape, hence the complimentary nickname of the "coral pool."

    The water source was intercepted from GuanTian Creek, but the insufficient water supply made it necessary to introduce water from Zeng-Wun Creek with a 3479-meter Wu-Shan-Ling diversion tunnel. The water went through ZengWun Power Plant on the east side of the mountain range before it was ushered to Xi-Kou Power Plant on the west side. After the water enters the Wu-Shan-Tou Reservoir and Wu-ShanTou Power Plant before it was released into the irrigation ditch, it shows how Wu-Shan-Tou Reservoir does not only serve the water storage function but also holds the value of 3-fold electricity generation. The factory operates on the electricity it generates and sells the rest to Taiwan Power Company. "Wu-ShanTou Reservoir and Jia-Nan Irrigation Ditch Water Conservancy System" have been listed as cultural landscapes of Tainan City.