Consulting, examination and training of on-site supervision for engineering structures, earthworks and superstructure as well as production of prefabricated single-span girders with 32 and 24 m span widths. Control of supervision of girders on site. In addition to examining the design and calculations of the prefabricated elements single-span girder system in Chinese construction method, control of supervision on-site for girder construction was within the array of services. Approximately 80 km earthworks after soil treatment.