1932.5 km. According to Baidu map, Huaihua Bridge 1 to Bridge 2 1932.5 km, the whole journey takes 23 hours and 9 minutes. Huaihua City, known as he cheng or Hezhou or Wuxi in ancient times, is a prefecture-level city under the jurisdiction of Hunan Province, located in the south of the western part of Hunan Province, between Wuling Mountain and Xuefeng Mountain, and in the transitional zone between the subtropical climate zones of Sichuan, Hubei, Hunan and Guizhou and the southern part of the Yangtze River.