Congratulation to Viaduct Construction Completion of Zhengzhou the 4th ring Expressway


The 4th Ring Expressway Project in Zhengzhou is a new ring road after the 3rd ring expressway, with total length of 93 Km, of which 86.3 Km is the upgrading or reconstruction of the existing roads, including 65 Km viaducts.

The entire viaduct has been completed by end of Dec.2019.


SDI provided design for 5 segment casting yard and also undertaken viaduct girder erection construction works for the Southern Section and Western Section of the Fourth Ring Expressway, totally about 2,000 pcs of Segments on scheduleand overcame the difficulties of 100m radius curve at ramp and erecting segment at 18m height. 

It is expected that before April 30,2020 the entire elevated highway will be opened to traffic, and the entire line of construction tasks will be completed on July 31, 2020.