Abstract: A filter system for a storm drain having a bottom, side walls, and an outlet formed in the side wall. The filter system includes a main section having an array of openings formed therein for permitting water to flow through the filter. The main section is configured to be mounted adjacent the side wall and aligned with the outlet. In some cases, the bottom of the storm drain includes a depression for feeding water to the outlet. The filter system includes a flexible mesh that extends from the bottom of the main section into the depression for filtering water flowing in the depression. In addition, the filter system includes a mounting structure that enables the main section to be slidably mounted into an operative position and also enables the main section to be removed by slidably moving it from the operative position.

Abstract: A filter system for a storm drain having a bottom, side walls, and an outlet formed in the side wall. The filter system includes a main section having an array of openings formed therein for permitting water to flow through the filter. The main section is configured to be mounted adjacent the side wall and aligned with the outlet. In some cases, the bottom of the storm drain includes a depression for feeding water to the outlet. The filter system includes a flexible mesh that extends from the bottom of the main section into the depression for filtering water flowing in the depression. In addition, the filter system includes a mounting structure that enables the main section to be slidably mounted into an operative position and also enables the main section to be removed by slidably moving it from the operative position.

Abstract: A corrugated plastic drainage pipe in which drainage holes are formed through raised reinforcing formations on the corrugated pipe periphery and in which each of the reinforcing formations is integrally joined to adjacently disposed ridges or ribs of the corrugations and protrude from the valley therebetween to bridge the valley. Each reinforcing formation terminates in an end face which peripherally surrounds the drainage hole through the reinforcing formation and which is adapted to seat against surrounding soil or other material in a buried installation. Support feet formations are integrally formed with the corrugated pipe and are adapted to seat on a pipe-supporting surface to support the pipe.