Wushantou reservoir

Wushan reservoir is located in guantian township. It is also called coral pool because of its winding shape. The main scenic spots include the grand dam and spillway, the tree shaded Triangle Park and Xiangxie Avenue, the solemn Temple of heaven and static Park, etc. The stone dike of the dam is a rare semi hydraulic scouring and silting earth rock dam structure. Standing here, you can see the green water and the mountains in the distance, overlook the temple of heaven, wufengxie and other scenery, and have a very broad vision.

Wushantou reservoir

Wushantou reservoir, formerly known as Wushantou reservoir, is a reservoir located in guantian District, Tainan City, Taiwan Province, China. It has the function of hydropower generation and is connected with Wushantou hydropower plant and Wushantou scenic spot. It is located in Wushan mountain, 468 meters above sea level. As seen from the air, it looks like green coral, so it is called coral pool.

summary

Wushantou reservoir was built in 1920 and completed in 1930. It is one of the most important water conservancy projects in Jianan Dazhen. It is also one of the early reservoir systems in Taiwan, China. It was planned and completed by Japanese hydraulic engineer batian and Yi. The main purpose of the construction is to irrigate the agriculture in Jianan plain. Wushantou reservoir is located in the upstream of guantian River, a tributary of Zengwen river. It uses the huilow-lying Valley in guantian District, Liujia District, Dani district and Dongshan District of Tainan City as the catchment area. The water source is from Dapu River in the upstream of Zengwen river. It is a trough reservoir. The intake tunnel passes through wushanling to the upstream of guantian River, which is more than 3000 meters long. After the completion of Zengwen reservoir, the downstream water is taken to connect with Zengwen river The two complement each other. Zengwen reservoir also provides water for Wushantou hydropower station.

Basic information

Catchment area: 60 square kilometers

Maximum normal water level: 58.2m

Maximum possible water supply level (CMS): 60.6m

Water depth: 32m

Full water area: 1300 ha

Total water storage: 154158000 cubic meters

Planned effective water storage: 103.77 million cubic meters

Effective storage capacity: 82.45 million cubic meters

Planned annual water consumption: 1 million cubic meters

Dam type: semi hydraulic earth dam

Crest elevation: 66.7m

Maximum dam height: 56m

Crest length: 1273m

Crest width: 9m

Dam bottom width: 303m

Dam volume: 11020928 M3

Spillway type: natural overflow chute spillway

Spillway design discharge: 1500 cubic meters per second

Maximum spillway discharge: 2190 second cubic meters

Outlet type

Old water supply facilities: two water supply pipes, 9-inch diameter, 62.03m long and 168.93m long, needle valve and butterfly valve

New water supply facilities: one water supply pipe with a diameter of 14.1 inches and a length of 2170 meters, three sets of ring gate valves and three sets of air injection valves.

Effluent design flow: 144s M3

Outlet control valve type: power water supply

Dongkou headwork:

Weir: gravity concrete

Overflow weir, weir height: 5.6m, weir crest length: 239.40m

Desilting sluice:

2 water intakes: 16 electric winch water gates

Planned water intake: 56 second cubic meters.

Wushantou diversion tunnel: horseshoe shaped, 5m wide, 1:1200 longitudinal slope, 3107m long.

Total project cost: RMB 54130000 per day

Commencement and completion date: January 1920, may 1930

Irrigation water supply area: 69084 hectares

Planned annual water supply: 146820000m3

Power generation: the installed capacity is 50 kW, and the planned annual power generation is 438000 m3.

Address: 68-2 jiananli, guantian District, Tainan, Taiwan

Longitude: 120.36898422065

Latitude: 23.20325962989

Tel. + 886-06-6982103