Shatou-Jiuzhang Waterway is nanxi river Waterway, connecting Shatou and Wenzhou. Full-length 17. 1 km, passing through Huomiao Port, Gumiaokou Port, Xiadutan Port, Triangular Rock Port, Mache Port, Taishi Port and Jiuzhang Port. The lowest water level is 0.35m, the highest navigable water level is 12.66m, and the highest flood level is14.39 m. It can be navigable for 2 tons of wooden sailboats, belonging to a river section.
The waterway from Jiuzhang to Xikou, a tributary of Dayuan in the upper reaches of nanxi river, is 35.9 kilometers long, passing through Zhenxikou Port, Xiaruoxi Port, Zhaotan Port, Xiaogang Port, Dutou Port, Shuangmiao Port and Xikou Port. The highest navigable water level 12.66m, the lowest navigable water level 0.2m, and the bottom width 2m, which can be used by 1.5t wooden sailboats, belong to a river section.
Xikou-Pankeng Waterway is a tributary of the upper reaches of nanxi river, with a length of 3 1.02km, passing through South Bank and Hua 'an, with a minimum water depth of 0.2m and a bottom width of 2m. This channel belongs to a certain river section, and 1964 was opened, which can be used for rafting. The transportation of agricultural and sideline products in Pankeng Township has always relied on this passage.
Xikou-Huangnan Waterway is a tributary of the upper reaches of nanxi river, with a length of 15km, a lowest water level of 0.2m and a bottom width of 2m. 65,438+0964 opened, connected with the bamboo raft, belonging to the stream section.
The waterway from Xiyuan to Dutou, a tributary of the upper reaches of nanxi river, is 14.8km long, passing through Heshengbu and Donggaobu, with the lowest water level of 0.2m and the bottom width of 2m, which is 1.5t wooden sailboat reach. Among them, the Hesheng-Xikeng section was originally closed to navigation, and it was dredged by Gu Xiangmian in 18 (1929), which lasted for 7 years and opened in autumn in 25 years (1936). But the channel is shallow, so we can only use bamboo rafts. /kloc-in the winter of 0/954, manganese ore was discovered in Dafen Mountain in Xikeng, which was funded by the people's government. After blasting rocks and dredging, manganese ore and agricultural and sideline products can be transported by stern boat. At that time, there were more than 200 ships and transportation agencies along the river. Later, due to the opening of the expressway, the waterway was gradually blocked, and now it is impossible to sail.
The waterway from Jiuzhang, a tributary of Xiao Yuan in the upper reaches of nanxi river, to Xunzhai is 39 kilometers long, passing through Lengshuiwan Port, Zhuan Port, Tongzhoudian Port, Lian Bi Port, Shankeng Port and Xunzhai Port. The lowest water level is 0.2m, and the bottom is 2m. It can pass1.5t wooden sailboat, belonging to a flow section.
The waterway from Fulei to Mabu in Xiao Yuan Port in the upper reaches of nanxi river starts from Shuangxikou, Fulei Village, Shi Lan Township, reaches Shi Lan 13km, and ends at 27.5km in Xunzhai Mabu, with a lowest water level of 0.2m and a bottom width of 2m, belonging to the river reach. Copper raft was built in 1587, which was historically the main transportation route of agricultural and sideline products at the junction of Shiran, Xiasheng, Jiekeng, Xi 'ao and Yongqing and Yong 'ao. 1957 to 1963, the waterway from "ma bu" or horse stance just look to Shiran was regulated twice, with the length of14.5km.. 1957 also held a navigation ceremony. Later, because the passage was often blocked by quicksand rocks, rafts could only be used. Longtanbei Reservoir is located in Longtanbei Village, Yantan Town. 1958 10 was organized by Yantan production brigade and completed in April 1960. Earth dam with clay core wall is 3 1m high, 4m wide and 1 10m long at the top. The left dam head is opened with a wide shallow spillway, and the water conveyance tunnel is arranged in the left dam head mountain, with a length of 146m and a section of1.5×1.8m. The catchment area of the reservoir is 2.7 square kilometers, with a total storage capacity of 654.38+04.6 million cubic meters and a normal storage capacity of 654.38+0.2. There are 1 diversion power stations behind the dam. Mainly used for power generation, irrigation and fish farming. The annual power generation is 6.5438+0.2 million kWh, and 400 mu of farmland in Nanshan and other villages are irrigated by gravity. The reservoir flooded 46 mu of farmland, demolished 30 houses and resettled 24 households 105 people. The total amount of the project is1816,000 cubic meters, with a total investment of 887,600 yuan, of which the state subsidy is189,000 yuan. 1972 found that the dam was leaking, and it was designated as a dangerous reservoir with a storage capacity of 600,000 cubic meters. /kloc-0 started dam protection in June, 1982, and was completed on October 28th, the following year, 65438+/kloc-0. The quality meets the design requirements.
Xiaao Reservoir is located in Hesheng xiacun town. 1958 10 was organized by hesheng production brigade and completed in March 196 1 year. The hub project consists of main dam, auxiliary dam, spillway and water conveyance tunnel. The main dam is an earth-rock dam with clay core wall, 29 meters high, 95 meters long at the top and 5 meters wide at the top. The auxiliary dam was built in 1983 and 65438+February. It is a mixed earth-rock dam, with a height of 2. 1 m and a length of 2 1 m, and the facing slope and the back slope are dry masonry. The wide and shallow spillway is opened in the ravine at the left end of the dam, and the water conveyance tunnel lined with reinforced concrete is arranged in the mountain at the right end of the dam, with a length of 80 meters and a diameter of 1.4 meters. The catchment area of the reservoir area is 26.2 1 square kilometer, the length of the main river channel is 6.25 kilometers, the total storage capacity is 265,438+10,000 cubic meters, the normal storage capacity is165,438+10,000 cubic meters, and the irrigated farmland is 500 mu. A power station will be built behind the dam. It has comprehensive benefits of power generation, irrigation and fish farming. The flooded farmland in the reservoir area is 170 mu, 4 houses are demolished1room, and 26 households are resettled10 people. The total project amount is 6.5438+0.8 million cubic meters, and the total cost is 705.8 million yuan, of which the national investment is 6.5438+0.3438+0.00 million yuan. Dam protection was carried out in June 1980+0 1 and completed in February 1983. Tongguotan Hydropower Station is located in Shanjiao Village, Zhikou Town, Zhenjiang, and belongs to the runoff hydropower station with cascade development in Doumenxi. Started in June 1965 and completed in March 10, 1967. The total project cost is 264,000 yuan, including 24 10 yuan in the province and 23,000 yuan in the county. The upstream catchment area of the power station is 53.75 square kilometers, the diversion channel is long 1800 meters, the generating head is 72 meters, the flow rate is 1. 12 cubic meters per second, and the installed capacity is 2×200 kilowatts. 197/kloc-0 updated a motor in June, 2008+February, and the installed capacity increased to 520kW, which was connected to the grid of Xiaozixi Power Station and Baishui Mine Power Station, and the electric energy was directly sent to the county seat. 198 1 annual power generation is as high as 2.07 million kwh. After 1982, due to the utilization of runoff water by Daaotan Power Station, the incoming water is reduced, so it can only generate electricity in flood season, and the average annual power generation is reduced to 500,000 kWh. By the end of 1990, the cumulative power generation was12,326,900 kwh, the total fixed assets was 250,300 yuan, the annual depreciation expense of equipment was16,200 yuan, the annual repair expense was 6,300 yuan, and there were 6 employees.
Yantan Power Station, located in Nanshan Village, Yantan Town, is a supporting project of Longtanbei Reservoir. 1April 1969, the provincial water resources department approved the construction and allocated 300,000 yuan. Construction started in September of the same year, and power generation was completed in March. 197 1. The water head is 270 meters, the flow rate is 0.37 cubic meters per second, the installed capacity is 2×320 kilowatts, the water diversion channel is 3,000 meters, the steel penstock is 670 meters, the investment is 322,900 yuan, and the unit kilowatt cost is 504.55 yuan. On August 20th, 198 1, Yantan Power Station was connected with Xiaao Power Station (200 kW) and sent to Yantou Town. The power generation has increased year by year, and the economic benefits have continued to improve. 1988165438+10 was integrated into the large power grid for operation, and the cumulative power generation from 1974 to 199013210.9 million kwh. At the end of 1990, there were 0/4 employees in the whole station, with fixed assets of 322,900 yuan, annual depreciation expense of 55,600 yuan and annual maintenance expense of 29,300 yuan.
Daaotan Power Station is located in the lower reaches of Doumenxi, a tributary of nanxi river. The project started on February 20th, 1977, 1982. 1July, 982, the 35kV high voltage line from Daaotan to Shangtang was completed. In August of the same year, 15 unit was connected to the grid for power transmission, becoming the largest backbone hydropower station in China. Generation head 1 15.8 1m, diversion flow of 2.76m3/s, and installed capacity of 2× 1250kW. The main buildings include a concrete dam with a length of 30m and a height of 14m, a factory building with an area of 700m2, a living and management room with an area of 1624 m2, a highway with an area of 12.5km and an area of 3,840m (water flow is 4.5m3/s). A penstock with an area of 427m and a belt have a total engineering quantity of 268,000 cubic meters, including earthwork 1 18000 cubic meters, stonework 128000 cubic meters, concrete 4000 cubic meters, masonry 5000 cubic meters and labor 44 10000. The total investment is 3.08 million yuan, including 6.5438+0.34 million yuan from the Provincial Water Resources Department, 200,000 yuan from local subsidies, 990,000 yuan from bank loans and 550,000 yuan from self-financing. At the end of 1990, the total fixed assets of the power station was 235 1500 yuan, with 33 employees. The annual depreciation expense is 6.5438+0.447 million yuan, the annual major repair expense is 58,800 yuan, and the cumulative power generation is 56.65438+0.456 million kwh, with an average annual power generation of 6.2384 million kwh, which plays an extremely important role in alleviating power shortage and ensuring power supply in the county. Shangtang Gate is located in the southwest of Pudong Village, Shangtang Town, the county seat, which is the throat of nanxi river. Built in 1959. The upstream catchment area is 4 1.5 square kilometers, and the maximum flood flow is 36.5 cubic meters per second. The sluice is a five-hole reinforced concrete flat gate with clear width17.5m and water flow124m3 per second. The sluice project is integrated with the highway and bridge project of provincial highway Yong line. The sluice has complete electromechanical equipment, and the hoist room is 74 square meters. The water storage capacity reached 6.5438+0.98 million cubic meters, 0.4 million mu of farmland was irrigated and irrigated, and 255 tons of grain was added annually; The annual output of freshwater fish is 25 ~ 30 tons; It has played an important role in improving residents' lives, using water for industrial production and beautifying the environment.
Luoxi Gate is located at 1 km north of Qizao Yantou, Luoxi Township, on the lower east bank of nanxi river, and was completed and put into operation in 1956. It is a loose door, which is opened and closed manually and operated in the open air. 1986 Uneven settlement occurred in the lock chamber and pier, and cracks appeared between the right pier and the working beam. The project was redesigned and rebuilt, with a self-raised investment of 60,000 yuan, and 1987 was completed. The sluice has three holes, with a clear width of 7.8 meters and a flood discharge capacity of 70 cubic meters per second. This is a reinforced concrete flat door. It has the functions of flood drainage, moisture prevention, water storage and drought resistance for 3000 mu of farmland in Luoxi Township.