Compression fit storm water curb inlet filter

A curb inlet storm filter system for a curb inlet comprising

• a curb comprising a storm water curb inlet, the storm water curb inlet comprising a throat;
• and
• a storm water curb inlet filter comprising
• a semi-rigid compression frame comprising
• a convex inset portion, and
• an upper retention lip, and
• filter media supported by at least a portion of the convex bottom, such that the compression frame is self supported in the curb inlet throat by means of a forced compression fit and requires no additional securing attachments to the curb inlet or a gutter.

A method of filtering storm water from a curb inlet storm drain, the method comprising

• providing a storm water curb inlet filter comprising
• a semi-rigid compression frame comprising
• a convex bottom portion, and
• an upper retention element, and
• filter media supported by at least a portion of the convex bottom, such that the frame and filter media create a sediment and debris collection trough;
• inserting the storm water curb inlet filter into the curb inlet by
• positioning the storm water curb inlet filter in proximity to the curb inlet,
• pressing the convex bottom portion of the compression frame into the curb inlet so that
• the convex inset portion is partially compressed, thereby providing a retaining force to hold the compression frame in the curb inlet, and
• the upper retention element engages an outside portion of the curb inlet, such that the curb inlet filter is substantially flush with the curb;
• and
• intercepting and filtering storm water in the storm water curb inlet filter.