How many meters is the lower limit of Sanhong Seventh Bridge in Shunde?

Navigation clearance height is 8 meters. Sanhong Seventh Bridge is located in Shunde District, Foshan City, Guangdong Province. 1984 was completed and opened to traffic, spanning Shunde Waterway, connecting San Hong Qi Village in Beijiao Town and Yang 'e Village in London Town, with a total length of 726.7m, in which the main bridge is 30 1 m, the north approach bridge180m, the south approach bridge 2 10/0m, and the bridge deck width/kl. It is a five-hole prestressed continuous beam and a six-beam T-section structure.