Tianbaobei, located in Guanyinpu Village, Honglu Town, was built in the Tianbao period of Tang Dynasty (742 ~ 755), with a rainfall collection area of 85 square kilometers. Tianbaobei diversion dam is made of pebbles, with a length of 219 meters and a height of 3.5 meters. In the first year of Song Yuanfu (198), Zhuang Rouzheng, a magistrate of a county, organized personnel to rebuild the canal, and molten copper was used as a solid base to repair more than 2, meters of canals. Irrigate the fields of ten oceans from Yinxi Xialou to Wuyu, Haikou. In the fifth year of Xianfeng in Qing Dynasty (1855), it was rebuilt again and was once named Xianfeng Dam. During the Republic of China, the government did not pay attention to farmland water conservancy and lacked conservation. In 34 years of the Republic of China (1945), a gap was dug in Tianbaopi Dam to drain and fish, which caused the next year to be hit by floods, and the gap was even bigger. At that time, the government blocked the gap with bamboo baskets and perfunctory things. In 37 years of the Republic of China, the Fujian provincial government claimed to allocate 6 billion yuan (golden scroll) to rebuild Tianbaopi, but in fact only 5 million yuan was allocated, and most of them were pocketed by the powerful gentry, but it was not actually completed. In 195, the people's government strengthened and rebuilt Tianbaopi. The state loan was 3.825 billion yuan (i.e. 382,5 yuan). The outer slope of the dam was changed into a mortar stone rolling dam, and 8 mu was irrigated. In 1951, Tianbaopi Water Conservancy Management Committee was established, equipped with specialized personnel to strengthen the management and maintenance of the project. Over the past 3 years, after several reconstructions, the normal water intake is now 1.5 cubic meters per second. 17 villages in Yinxi, Honglu and Haikou and Dongge Farm benefited, with an irrigation area of 13,6 mu, and supplied water to 7 industrial units including Fuqing Sugar Factory and Bayi Iron and Steel Plant.
Taichengxi Water Diversion Project. In April 197, Taichengxi Water Diversion Project was built, with an annual water diversion of 16-2 million cubic meters into Dongzhang Reservoir. Taichengxi is a tributary of Longjiang River, and the available rainwater collection area is 39.5 square kilometers above Jingyang Gancuo. In dry years, the water volume is 25.41 million cubic meters, in normal years, it is 32.5 million cubic meters, and the average annual flow is about 6 cubic meters per second. The water diversion project includes a sluice gate and a water diversion channel. The sluice gate is built at the narrow mouth of the stream 2 meters south of Gancuo Bridge, and it is a weathered rock foundation. The left bank is a field, and the right bank is adjacent to Fuxia Highway. The sluice is designed according to the once-in-1-year flood and checked according to the once-in-a-century flood. ***6 holes, including 5 holes with a clear width of 5 meters and 1 hole with a clear width of 3 meters, with a total clear width of 28 meters. Five gates are of reinforced concrete arch structure, and five 1-ton twin-screw synchronous hoists are set. One is a reinforced concrete flat door and one 5-ton screw hoist. The water diversion channel is 3 kilometers long. About 1 meters south of Gancuo Bridge, the canal adopts three forms: digging open channel, building stone circular culvert and digging tunnel. Among them, the open channel is 593 meters long, the stone circular culvert is 832 meters long, and the tunnel passes through the northern foot of Taichengling, with a length of 1445 meters. The total earthwork volume of the project is more than 125, cubic meters. The state invested 387, yuan and invested 165, man-days. After the completion of the project, it has played an important role in irrigation in Longtian and alpine areas. The project has the advantages of low investment, no land occupation, no immigration, low management cost and benefits equivalent to a medium-sized reservoir. Haikou Longjiang Bridge, located in the west of Haikou Village, Haikou Town, Fuqing City, spans Longjiang. Built in the third year of Song Zhenghe to the sixth year of Xuanhe, it has been restored in all dynasties. Stone bridge, spanning the Longjiang River in Haikou, runs east-west, with a length of 476 meters and a width of about 4.6 meters. There are 39 piers with 4 holes, boat piers with a length of 9.2 meters, a height of 6 meters and a width of 3.6 meters. The bridge is paved with 9.5 meters, .67-.75 meters wide strips, and the ends are buckled and overlapped. A pair of octagonal seven-story pavilion-style solid stone pagodas stand at the bridge head, 5.5 meters high, with a sumeru seat, a gourd brake top and a Buddha statue embossed on each side of the tower wall. In 1961, the People's Committee of Fujian Province announced that Longjiang Bridge in Haikou was the first batch of provincial-level cultural relics protection units, and in 213, it was announced as the seventh batch of national key cultural relics protection units.
liqiao is located in the west of ruiyunta, Fuqing county, Fujian province, across Longjiang river. Also known as Ruiyun Bridge, Liqiao (commonly known as Longshou Bridge) was listed as a county-level cultural relics protection unit in 1987. The original site of Liqiao is outside the south gate of the county seat, spanning the banks of Longjiang River. It was built in the fifth year of Song Tiansheng (127) and rebuilt in the second year of Yuan Dynasty (1322). In the early years of Wanli in the Ming Dynasty, the county magistrate Xu Mengxiong presided over the repair. Because the bridge is straight to the south gate, facing the county government, it is taboo for Kanyu. Ye Xianggao's son, Cheng Xue, and the county elders suggested to the county magistrate Ling Hanzhong that the bridge should be moved to Xiaogushan, that is, the current bridge site. Ruiyun Pagoda was built at the bridge head. The bridge was moved and the pagoda was built in the winter of the thirty-fourth year of Wanli (166) and ended in the autumn of the forty-third year of Wanli (1615), which lasted nine years. The bridge was also designed and built by Li Bangda. The bridge is 183.3 meters long and 5 meters wide, with 19 gates. Stone pier, flat beam bridge, Liang Shi is 32-7cm wide and 33-4m thick. Liang Shi is mounted on a hat stone, which is double-layered, with 35 meters hanging from each end of each layer, and 13 pieces of Liang Shi are paved in parallel on each pier and each layer. The pier is 2 meters wide and 5.2 meters long, with water diversion tips at both ends. Unequal span, stake undercutting foundation. After the bridge was moved, although it was repaired during the reign of Kangxi and Yongzheng in Qing Dynasty, it was destroyed at the southwest end of the bridge because of its long age. In 1958, the wooden beam and wooden bridge deck was erected on the original Liang Shi, and it was transformed into a splayed abutment on the basis of the original No.1 pier, and eight holes were compressed to become the current ten-hole bridge. In 198, a reinforced concrete platform cap was added to the original platform. The original pier was designed with a cantilever reinforced concrete pier cap, and the superstructure was an assembled reinforced concrete hollow slab, with a total length of 9.8 meters and a clear bridge deck width of 7 meters.