China National Highway 345

China National Highway 345 runs from Qidong in Jiangsu to Nagqu in Tibet. Its exact length is not known yet, as parts of the route are still under planning, but once completed it will be around 3000 km long. It is one of the new trunk highways proposed in the China National Highway Network Planning (2013 - 2030).

Route
Construction on the section starting from Qidong commenced in May 2019. It is complete in Jingjiang and Taixing and under construction as a western ring road around Yangzhou.
 * Jiangsu

In Fuyang, provincial highway S102 and the Fuyang south ring road were reclassified as G345. G345 is mostly complete in Anhui.
 * Anhui


 * Henan


 * Shaanxi

A part of the Gansu section is relabeled and upgraded former Gansu provincial highways S305 and S307.
 * Gansu

Parts of Qinghai Provincial Highway S309 were upgraded to G345. It connects to G214 at Gyêgu, leading west to Qapugtang.
 * Qinghai

In Nagqu, G345 connects to G109.
 * Tibet