Qingzhou Wannian Bridge was built in which dynasty? How many years ago?

Qingzhou cultural relics protection unit, formerly known as Nanyang Bridge, commonly known as Beida Bridge, is located in Qingzhou, across Nanyang River, connecting Nanyang City and Dongyang City in ancient Qingzhou. For thousands of years, it has been the traffic artery of the city. When Wannian Bridge was founded, there is no clear record in history, but at least in the Ming Dow period of Song Dynasty (1032- 1033), Muhongqiao was built, in the 12th year of Yongle in Ming Dynasty (14 14) and the 22nd year of Wanli (1494). After several constructions, Wannian Bridge is now a seven-hole stone bridge with a flat deck. The bridge is 86 meters long, 9.4 meters wide and 9 meters high. There is a wide approach surface in the north and south, and there are stone bridges on both sides of the bridge, Aquarius 18 pairs and Shishi 19 pairs. There are four large stone lions at both ends of the bridge, which are magnificent; There are relief "Twenty-four Filial Pieties" and branch-bound peony carved in imitation of Ming Dynasty on the bridge railing; On the six piers facing the water on both sides of the bridge, faucets are carved. It is said that the faucet can absorb excess flood, and no matter how rough the flood is, it will not cross the pier. In recent years, the Nanyang River under Wannian Bridge has been built into a riverside park with beautiful environment, full of flowers, green grass and lush willows. To the south of the bridge is a prosperous tourist and cultural commodity market, and both ends of the bridge are connected with Qingzhou ancient street. Wannian Bridge is welcoming tourists from all directions with its rich historical and cultural charm and exquisite bridge-building art.