Shanghai-Chongqing Expressway Wuhan to Huangshi Reconstruction and Expansion Project, Section 2 bidding officially opened the prelude to the construction of the roadbed widening earthwork test section, marking the project comprehensively stepped into the new stage of mainline roadbed construction. After the completion of this test section, it will provide scientific and effective data parameters and measures for the subsequent roadbed construction of the whole project, and set up a benchmark for the roadbed construction process.