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在毛主席革命路线指引下,在1101修建指挥部的亲切关怀下,兰州铁道学院“五·七”工程处在学习兄弟单位先进经验的基础上设计和建造了一座两跨30米铁路双曲拱桥。现在此桥业已建成(见照片)。本桥为跨越山沟的旱桥。计算跨度为30米,拱矢高10米。桥两岸复盖层仅2～3米。基础都是明挖敞坑基础,置于片岩上。设计载重为中-22级。拱肋拱波为预制装配式。主肋分三段预制,每段重6吨。全桥装吊作业依靠自制木塔架简易索道。主体工程已于1970年10月1日前竣工。目前,还未经过通车运营检验。桥梁上部结构未发现明显裂纹,也未发现墩台位移等不利征兆。
Under the guidance of Chairman Mao’s revolutionary line and under the gracious care of the 1101 Construction Command, the “57” Engineering College of Lanzhou Railway Institute designed and built a two-span 30-meter double-curved arch bridge on the basis of learning advanced experience of fraternal units. . Now the bridge has been completed (see photo). The bridge is a dry bridge across the ravine. Calculation of the span of 30 meters, arch arrow 10 meters high. Bridge across the cover only 2 to 3 meters. Foundations are open cut open pit foundation, placed in schist. Design load of -22 level. Arch rib arch wave prefabricated. Main ribs divided into three sections prefabricated, each weighing 6 tons. Full-bridge crane operation rely on self-made wooden tower simple cableway. The main project was completed before October 1, 1970. At present, it has not passed the opening operation inspection. No obvious cracks were found in the superstructure of the bridge and no adverse signs such as abutment displacement were found.