Core Points - The G5 Jingkun Expressway expansion project in Sichuan, specifically the Mianyang section, has completed its beam installation, marking the near completion of the main construction work [1][3] - The total length of the Guangmian expansion project is nearly 124 kilometers, designed for dual six-lane traffic at a speed of 120 kilometers per hour, and is a crucial part of the national expressway network [3] - The project is expected to be completed and open to traffic by 2026, reducing travel time from Guangyuan to Mianyang from 2 hours to approximately 70 minutes, thereby enhancing connectivity between northern Sichuan and the Chengdu Plain economic zone [3] Summary by Sections - **Project Completion**: The last T-beam, measuring 40 meters and weighing about 119 tons, has been successfully installed, indicating the completion of beam installation for the Mianyang section of the G5 Jingkun Expressway expansion [1] - **Project Specifications**: The expansion spans nearly 124 kilometers and is constructed to accommodate dual six-lane traffic at a maximum speed of 120 kilometers per hour, reinforcing its role in the national expressway network [3] - **Impact on Travel Time**: Upon completion in 2026, the travel time between Guangyuan and Mianyang will be significantly reduced, promoting regional economic collaboration and improving traffic capacity towards the north [3]