On the south side of the San Joaquin River, crews are finishing up construction of pier caps to tie together the support columns. The cast-in-place construction of the deck that will carry high-speed trains is also progressing, as it links all the structures together. On the north side of the river, other crews are working on the structures where the viaduct will tie-in to embankment. The completed viaduct will form one of the largest structures on this first phase of the high-speed rail project.