The development of the construction world is very fast, civil technology and its accompanying and innovation are growing, with the increasingly dense population, the demand for a product and services that are getting faster will also increase. The dense mobilization and narrowness of the land make the scope of construction smaller. This triggers relatively short and efficient construction demands. In the Jakarta international stadium development project, there are several work items including the construction of a bridge connecting the stadium specifically for the mobilization of spectators to and from the stadium. The method used is the Detailed Analysis method. This method uses data on each productivity of each work so that it can coefficient from the results of the analysis of the unit price of the work, with the final guidance to know the cost of each method both Precast and conventional methods. The results of the analysis parachuted that floor plates using conventional systems are cheaper to use than Precast plates. Obtained the total cost of Implementation for Conventional plates amounted to Rp. 3,256,890, and For Precast Plate Cost Rp. 4,206,456 with a percentage difference of 22,6%