Methods and modules for an underground assembly for storm water retention or detention

An assembly for retaining or detaining storm water beneath a ground surface comprising:

• a plurality of first modules;
• each first module having a horizontally disposed deck portion and at least one substantially vertically disposed side portion extending therefrom, said deck portion and said side portion have respective end edges, and said side portion having bottom edges;
• said side portion and said deck portion defining a longitudinal channel in said first module which is open at least at an end of said module;
• said side portion having at least one opening therein and defining a lateral channel in said first module;
• said longitudinal channel and said lateral channel being in fluid communication with one another;
• each said channel having about the same cross section and extending upwardly from said bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions;
• said plurality of first modules being aligned in a lateral direction and a longitudinal direction of said assembly, said lateral channels and said longitudinal channels of adjacent first modules being in fluid communication therebetween, said plurality of first modules forming at least one continuous lateral channel and at least one continuous longitudinal channel;
• and
• the assembly further including a plurality of side modules, each side module having a corresponding horizontally disposed deck portion and two corresponding substantially vertically disposed side portions extending from opposite longitudinal sides of said side module deck portion, said plurality of side modules being peripherally located in said assembly relative to said plurality of first modules;
• wherein the plurality of side modules includes some of said side modules having one of said side portions which define no openings, other of said side modules having one of said side portions which define no openings other than an assembly access port located therein, all of said side modules having another one of said side portions having at least one opening therein which has a cross section about the same as said channels, said opening of said side module being aligned and in fluid communication with selected one of said channels.

An assembly for retaining or detaining storm water beneath a ground surface comprising:

• a plurality of first modules;
• each first module having a horizontally disposed deck portion and at least one substantially vertically disposed side portion extending therefrom, said deck portion and said side portion have respective end edges, and said side portion having bottom edges;
• said side portion and said deck portion defining a longitudinal channel in said first module which is open at least at an end of said module;
• said side portion having at least one opening therein and defining a lateral channel in said first module;
• said longitudinal channel and said lateral channel being in fluid communication with one another;
• each said channel having about the same cross section and extending upwardly from said bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions;
• said plurality of first modules being aligned in a lateral direction and a longitudinal direction of said assembly, said lateral channels and said longitudinal channels of adjacent first modules being in fluid communication therebetween, said plurality of first modules forming at least one continuous lateral channel and at least one continuous longitudinal channel;
• and
• wherein said assembly is supported on a floor having at least one outlet port defined therein.

A modular assembly for retaining or detaining storm water beneath a ground surface comprising:

• a first module including an elongated member having a generally U-shaped cross section formed from a substantially flat deck portion with two side portions extending from opposite longitudinal sides of said deck portion, said side portions having bottom edges;
• said first module defining a longitudinal channel for fluid flow through said module in a longitudinal direction of said module;
• at least one of said side portions including an opening therein defining a lateral channel for fluid flow in a lateral direction of said module;
• said longitudinal channel and said lateral channel being in fluid communication with one another;
• each said channel having about the same cross section and extending upwardly from said bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions;
• the assembly further including a plurality of side modules, each side module having a corresponding horizontally disposed deck portion and two corresponding substantially vertically disposed side portions extending from opposite longitudinal sides of said side module deck portion, said plurality of side modules being peripherally located in said assembly relative to said first named module;
• wherein the plurality of side modules includes some of said side modules having one of said side portions which define no openings, other of said side modules having one of said side portions which define no openings other than an assembly access port located therein all of said side modules having another one of said side portions having at least one opening therein which has a cross section about the same as said channels, said opening of said side module being aligned and in fluid communication with selected one of said channels.

An assembly for retaining or detaining storm water beneath a ground surface comprising:

• at least one first module having a horizontally disposed deck portion and at least one substantially vertically disposed side portion extending therefrom, said deck portion and said side portion have respective end edges, and said side portion having bottom edges;
• said side portion and said deck portion defining a longitudinal channel in said first module;
• said side portion having at least one opening therein and defining a lateral channel in said first module;
• said longitudinal channel and said lateral channel being in fluid communication with one another;
• each said channel having about the same cross section and extending upwardly from said bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions;
• and
• the assembly further including a plurality of side modules, each side module having a corresponding horizontally disposed deck portion and two corresponding substantially vertically disposed side portions extending from opposite longitudinal sides of said side module deck portion so as to define a corresponding longitudinal channel;
• wherein the plurality of side modules includes some of said side modules having one of said side portions which define no openings, all of said side modules having another one of said side portions having at least one opening therein which has a cross section about the same as said channels, said opening of said side module being aligned and in fluid communication with selected one of said channels of said first module.

An assembly for retaining or detaining storm water beneath a ground surface comprising:

• at least one first module having a horizontally disposed deck portion and at least one substantially vertically disposed side portion extending therefrom, said deck portion and said side portion have respective end edges, and said side portion having bottom edges;
• said side portion and said deck portion defining a longitudinal channel in said first module;
• said side portion having at least one opening therein and defining a lateral channel in said first module;
• said longitudinal channel and said lateral channel being in fluid communication with one another;
• each said channel extending upwardly from said bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions;
• and
• the assembly further including a plurality of side modules, each side module having a corresponding horizontally disposed deck portion and two corresponding substantially vertically disposed side portions extending from opposite longitudinal sides of said side module deck portion so as to define a corresponding longitudinal channel;
• wherein the plurality of side modules includes some of said side modules having one of said side portions which define no openings, all of said side modules having another one of said side portions having at least one opening therein, said opening of said side module being aligned and in fluid communication with a selected one of said channels of said first module.