On July 10, 2023, the Development and Reform Commission of Yunnan Province issued an approval, agreeing in principle to the "Feasibility Study Report on the Reconstruction and Expansion Project of Yunnan Mengla (Mengxing) to Hongqiao Section of National Highway G219". The approval is as follows:

Project Overview

The main line of the project is 78.001 kilometers long, and the Yiwu connection line is 5 kilometers long. The construction scale of the main line renovation and expansion section is 62.824 kilometers, and the construction scale of the new section is 15.177 kilometers. It starts from Mengxing Village, Menglun Town, Mengla County, and connects to the end of Jinghong (Mengkuan) - Mengla (Mengxing) section of national highway G219; It ends near Hongqiao, Luode Village, Yiwu Town, Mengla County, and connects with the starting point of National Highway G219 Mengla (Hongqiao) - Lvchun (Lixianjiang) section. It is constructed according to the standard of second-class highway, with a sectional design speed of 60km/h, subgrade width of 12m, and a design speed of 40km/h, subgrade width of 10m and 8.5m. The vehicle load level for bridge and culvert design shall be highway level I, and other technical indicators shall be implemented according to the "Technical Standards for Highway Engineering" (JTG B01-2014). A total of 49 bridges are set up along the entire line, including 34 major bridges and 15 medium bridges. There are no small bridges along the entire line. Set up 1 tunnel. Set up 36 level crossings. The estimated total investment of the project is 2.669 billion yuan.

The new Yiwu connecting line is 5km long, which is built according to the standard of third-class highway, with a design speed of 30km/h and a subgrade width of 7.5m. Keywords: engineering news, engineering construction, engineering construction information

Main control points: starting point Mengxing Village, Matulin Yakou, Chachang Third Team Yakou, Dayakou, Yiwu Mannai Mingpu Tea Factory, Manla Village, Mannai Village, Luode Village, and ending point Hongqiao.

Next, the preliminary design phase will be carried out as soon as possible, and after the preliminary design is completed, it will be submitted for approval according to the procedure. In the preliminary design stage, the next step should be done well. Editor/Zhao E