Abstract:Wangdao navigation junction is the key project of recovering navigation in Xiaoqinghe Channel.Based on the analysis of the restrictive factors for Wangdao navigation junction,we compare three layout schemes from such aspects as the river bend,bridge construction,the plane layout for ship lock,influence on riverside facilities,and the project investment.The results indicate that the scheme of moving check gate has the least bridge span length,the lowest project investment in all of the schemes,and the layout for ship lock is more rational.So it’s recommended as the optimal scheme.