Abstract: The present invention relates to a new and improved catch basin including a frame means mounted around an opening in drainage and/or sewer pipes, a riser means having an opening at each end thereof mounted with said frame, and a grid support means and grid means mounted therewith, said grid support means and grid means being positioned on the interior of said riser means and between each of said openings in said riser means for preventing undesirable, unwanted, oversized objects from entering into the drainage and/or sewer pipes.