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

 

    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 was constructed with the low-lying valley surrounding by Guan-Tian District, Liu-Jia District, Da-Nei 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 Guan-Tian 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 Zeng-Wun 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-Shan-Tou 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-Shan-Tou Reservoir and Jia-Nan Irrigation Ditch Water Conservancy System" have been listed as cultural landscapes of Tainan City.