Thirteen Major Motorway Projects Progress Rapidly Across Yunnan to Strengthen South Asia-Southeast Asia Transport Gateway

According to Xinhua News Agency and China Communications News reports, the opening of the Zhenkang-Menglian stretch on the Ruili-Menglian motorway has slashed journey times between the two counties from nine hours to just three, delivering a marked improvement in travel efficiency. Fresh construction milestones continue to emerge across Yunnan Province through mid-summer, as thirteen motorway new-build and upgrade schemes funded and delivered by Yunnan Communications Investment Group press ahead to tight schedules amid mountain construction sites ringing with heavy machinery. 

Continuous breakthroughs including tunnel breakthroughs, bridge deck capping and pavement laying reinforce infrastructure foundations for Yunnan’s development as a transport hub linking South and Southeast Asia, spanning inland central Yunnan, eastern and southern border entry points, national trunk motorway corridors and cross-border international thoroughfares.

Teams across all sites operate round-the-clock to deliver schemes due to open in the near term. The Xuanwei-Huize motorway stands at an overall completion rate of 94 per cent, with total fixed investment reaching 20.706 billion yuan. All tunnel works are fully finished, alongside 99 per cent of subgrade and bridge construction, while surfacing stands 85 per cent complete. Auxiliary works covering building construction, landscaping, traffic safety, fire protection and electrical installations are being fast-tracked, with full opening scheduled for July. The completed route will cut cross-region travel durations and unlock mineral and cultural tourism assets spread along its alignment.

On the Yunxian-Lincang motorway, excavation for the Daliangshan Control Tunnel has passed 99 per cent completion, leaving fewer than 200 metres of main bore to dig. Inclined and vertical access shafts have connected to the main tunnel line, with vertical shafts excavated to full depth. A 13.8-kilometre stretch running from Yunxian Interchange to the Daliangshan Tunnel entrance is already open to local traffic, alongside three pre-operational segments measuring 16.76 kilometres, 6.69 kilometres and 11.9 kilometres respectively. The full-length Daliangshan tunnel is poised for breakthrough, bringing the full motorway opening within sight.

Two sections of the Shizong-Qiubei motorway advance in parallel. The Qujing segment reaches an 83 per cent overall completion rate, with tunnel, bridge and subgrade works entering final push phases. The full-length Potoushan No.2 Tunnel has opened both carriageways, and the stretch is on track to open to traffic within the calendar year. The Wenshan segment stands at 75 per cent completion, with all tunnel works finished, 82 per cent of subgrade and 86 per cent of bridge structures complete. Pile foundations for the critical Xiaolongshan Bridge control project are 91 per cent finished, with 245 beam precast units produced to fulfil 40 per cent of total requirements, and remaining engineering works unfolding site-wide. Once both segments are operational, the Shizong-Qiubei journey will shrink from over four hours to one hour and thirty minutes.

The Menghai-Daluo national motorway, a core segment of national route G8512, registers a 77.2 per cent construction progress rate. The Menghun control tunnel has opened both carriageways, while the 6.64-kilometre Bulangshan Tunnel has seen 4.8 kilometres of excavation finished, equivalent to 71.6 per cent of its total length. Upon completion, the thoroughfare will form a vital land transport artery connecting China and Myanmar.

Construction teams allocate full labour and equipment resources to tackle geotechnical and structural challenges on high-complexity routes. On the Menla-Lüchun motorway, major control works including the Lixian River Super Bridge and Mantan Hub Interchange advance in orderly sequence. Site crews adopt reversed schedule planning to resolve residual construction tasks, with 58 kilometres of civil engineering works at both project termini fully completed. Installation of tunnel electrical systems, lighting and fire piping networks is now underway.

The Menglian-Menghai motorway hits an 84 per cent overall completion benchmark, with four extra-long control tunnels – Liming, Nongshan, Kabashan and Jingmai – approaching full excavation. Four simultaneous excavation faces operate on the 5,148-metre Jingmai Extra-Long Tunnel, with each metre bored reflecting precise engineering standards and sustained on-site commitment, and full tunnel breakthrough targeted before year-end.

Widening upgrades on the Gongshan-Xiaopu stretch of the Yinkun Motorway carry forward traffic diversion arrangements for the Pan Suhai Bridge and partial live-lane construction zones. Four key control bridges at Caidi, Yize Village, Sanjia Village and Pan Suhai receive concentrated construction input. Multiple construction landmarks have been reached on the Maguan-Xichou motorway, including full breakthrough of the right carriageway on the Tianchong Tunnel, completion of all 100 pile foundations for the Panjiang River Super Bridge main piers, and 3,732.2 metres excavated on the Dashujiao Extra-Long Tunnel. Every completed control structure removes major bottlenecks holding back full opening across all thirteen schemes.