The No1 Expressway Ring is an important part of Zibo Expressway Network. Lushan Avenue Interchange is located at the cross of Lushan Avenue and Changguo Road. With the design process of interchange, this paper briefs the technical standard and structural form of the interchange. This paper checks the clearance at the intersection of WN and NE ramp with different methods. By comparing the calculation process and result, concluded the advantages, disadvantages and applicability of each calculation method. The result is an experience and provide reference for the design of similar projects in the future.