Abstract: A storm water drain system and methods of assembling the same are provided. The system can be arranged to provide a water management function such as retention, detention, conveyance, or infiltration. The system can include a plurality of support modules positioned adjacent to one another to form a top deck, a bottom deck, and an interior space between the top deck and the bottom deck. The plurality of support modules can include a support module that has a bottom corbel extending from an outer surface of the support module. The bottom corbel can be located within the interior space and have a surface that contacts a portion of the bottom deck.

Abstract: A storm water drain system and methods of assembling the same are provided. The system can be arranged to provide a water management function such as retention, detention, conveyance, or infiltration. The system can include a plurality of support modules positioned adjacent to one another to form a top deck, a bottom deck, and an interior space between the top deck and the bottom deck. The plurality of support modules can include a support module that has a bottom corbel extending from an outer surface of the support module. The bottom corbel can be located within the interior space and have a surface that contacts a portion of the bottom deck.

Abstract: A storm water management system and methods of assembling the same are provided. The system has open columns having corbels that support a slab spanning between adjacent columns. The system is assembled by positioning a first plurality of slabs end-to-end and spaced apart from a second plurality of slabs. The column is seated into an opening formed between the first and second plurality of slabs. A first corbel extends from a first side of the column and over laps an edge portion of a slab of the first plurality. A second corbel extends from a second side of the column and over laps an edge portion of a slab of the second plurality.