Zhoutian-Ouchikou river reach is an important part of the Jingjiang river,which is also one of the key reaches of the “645” projects in Hubei province.At present,under the requirements of construction of the Yangtze River Economic Zone strategy,the waterway depth is planned to be further increased to 4.5 meters in the dry season from Yichang to Wuhan.However,the current maintenance depth is 3.5 meters in Zhoutian-Ouchikou river reach during the dry season,which remains a large amount of depth to be increased.This paper analyzes changes of deep channel and accomplishments of built regulation projects and demonstrates the obstacle problem of further enhancing the waterway depth.Moreover,the potential concerning enhancement of the waterway dimension is provided from the project plan and the non-technical conditions aspects in order to give a support to decision by related departments.