重庆长寿长江大桥是渝怀铁路控制性工程之一 ,由于工期的限制 ,6 # 、 7# 主桥墩水下施工拟采用同期作业的施工方式 ,不仅缩窄了航宽 ,也影响了桥区河段的航行水流条件 .笔者从不同的角度出发 ,阐述了大桥在施工期的通航条件 ,并提了相应的通航安全保障措施及建议 Chongqing Changshou Yangtze River Bridge is one of the controlled projects of Yuhuai Railway. Due to the limitation of construction period, the construction methods of 6 # and 7 # main piers under sea construction intend to adopt the same operation, which not only narrows the navigation width but also affects the bridge area river Paragraph of the sailing flow conditions.The author from a different point of view, elaborated the bridge during the construction of navigation conditions, and put forward the corresponding navigation security measures and recommendations