Prefabricated precast bridge

PURPOSE: A prefabricated precast bridge is provided to reduce time for working in a field, obtain workability, and construct a bridge of high quality by manufacturing components comprising the bridge as precast members. CONSTITUTION: A prefabricated precast bridge comprises a bridge post pile (10), a bracket (20), a coping unit (30), and a slab (40). The bridge post pile is formed with a steel material or concrete and includes a connection unit (11) in which a screw thread is formed on the outer circumference of the upper end. The bracket is connected to the outer circumference of the upper end of the bride post pile and includes a mounting unit supported on the bottom surface of the coping unit and a cylindrical bracket body in which a female screw is formed on the inner circumference. The coping unit is assembled in the upper part of the bridge post pile, and the bottom surface is supported by the bracket. The copping unit includes a connection hole (31) in which cast-in-place concrete is filled. The slab is formed with prestressed concrete and is mounted in order to be hung on the upper part of the adjacent copping unit.