Introduction to Akang No. 4 Bridge: Ordos Akang No. 4 Bridge (Ulan Mulun River Bridge No. 4) is located in the lower section of the Ulan Mulun River in Kangbashi New District. The total length of the bridge is 1,005 meters. The main bridge It is an 800-meter-long, twin-tower, double-cable cable-stayed bridge with a main span of 450 meters. The bridge is 37 meters wide and the tower is 129 meters high. The main span and main tower adopt a steel structure. The side spans and approach bridges adopt a concrete box girder structure, with a total of cable stays. With 68 pairs of cables, it is one of the largest cable-stayed bridges in China.