岳阳市位于洞庭湖出口与长江交汇处，城市防洪大堤南起月形湖，北至城陵矶，全长15.7km，属Ⅰ级重要堤防。 

 

Yueyang City is located at confluence between Dongting Lake and Yangtz River. The flood preventin dyke starts from Yuexing Lake at south and ends in Chenglingji at north, with 15.7km in total length, ranking as Grade I Dyke.