An opening in the floor portion of a bridge to provide a means for rain or other water accumulated upon the roadway surface to drain through it into the space beneath the structure. Recommendations for preventive maintenance include:
Typical Scupper (Top Side)
Typical Scupper (Bottom Side)
A Scupper partially clogged with debris.
Extension of Scupper Pipe to minimize splashing of water on beams.
Use of rip-rap or dump rock to enhance slope stability at abutments.
Use of grout filled mattresses to enhance slope stability.
Poor deck drainage and lack of embankment protection can undermine stability of abutments.