Abstract:As an important tributary of the Yellow River, the Yiluo River has always been plagued by disasters. The Yiluo River Bridge on the Longhai Railway is located at the flood discharge checkpoint of the Yiluo River, which will cause a serious threat to the flood control safety of the Jiatan Area in Yanshi. Based on the analysis of the regional flood control situation and the current situation of the Yiluo River Bridge on the Longhai Railway, combined with the planning, the current situation of the existing railway, the design speed per hour, the acquisition and demolition and other factors, the scheme of the new railway bridge on the Longhai Railway is put forward, and the interrelationship between the bridge after completed and the flood control in the lower reaches of the Yellow River is analyzed. It is proposed that reconstruction projects should be carried out on the basis of coordinating the flood control relationship between the Yiluo River basin and the lower Yellow River, which provides the beneficial reference for carrying out the next step of work.