Guozigou Bridge is called Guozigou Double Tower Double Cable-beam Cable-stayed Bridge, and the above-ground part of the bridge was built on August 22, 07. Guozigou Bridge is one of the control projects of the national highway 045 line Sailimu Lake to Guozigoukou Expressway construction project. The bridge is 700 meters long, the bridge surface is 200 meters away from the bottom of the valley, and the main tower is 209 meters and 215.5 meters. The main bridge is all steel truss beam structure. The steel of the special domestic bridge is 17,000 tons, and the high strength bolt connection is used, and the installation accuracy is controlled within two millimeters. The bridge is the first cable-stayed bridge on the road of the Autonomous Region and the first double-tower double-cable steel truss bridge in China.