Stormwater management systems, methods, and apparatus for containing and filtering runoff may be provided. In one implementation, a stormwater management crate for managing stormwater runoff may be provided. The stormwater management crate may include a top plate having one or more support column attachments and one or more support columns located below the top plate, the one or more support columns being affixed to the top plate at the one or more support column attachments and to a second plate. Support column attachments may include bayonet connections or snap connections. Stormwater management crates may be arranged into an array and include side panels of variable heights. The array of stormwater management crates may be further wrapped in sediment impervious material and serve to restrict stormwater flow as part of a stormwater management system.

Disclosed in the present application is a system for a storm water and traffic collector box culvert. The system may comprise a plurality of reinforced slabs with an upper slab that may be configured as a reinforced surface to collect storm water runoff. The plurality of slabs may be connected by a plurality of attachment mechanisms. Accordingly, the present system is directed to an environmentally friendly culvert design that can minimize the magnitude of earthworks required by traditional drainage systems while also providing increased drainage capabilities.

The invention provides a modular unit or module (20) for use in an underground water management system. The modular unit or module (20) comprises a prism structure being a polyhedron enclosing a pair of internal members (6, 6′). The internal members (6, 6′) comprise a first member (6) comprising a first arch (9), and a second member (6′) comprising a second arch (9′) located at an angle to and being arranged inverted with respect to the first arch (9). The invention also provides a modular system (100) for use in underground water management, the modular system (100) comprising a plurality of the modules or modular units (20, 20′).

A stormwater treatment system and method for removing sediment, chemical pollutants, and debris from stormwater runoff by utilizing bioretention practices including physical, chemical and biological processes. Stormwater is directed into a primarily open-bottomed, multi-dimensional container whereby entrained sediment and other transportable materials are filtered and treated through a media filter layer consisting of inorganic and/or organic materials. A live plant (preferably a tree) situated within the container with roots resident in the media filter layer with the ability for expansion beyond the perimeter of the container through openings in one or more sidewalls. The treated water may be further conveyed beyond the perimeter of the container by additional openings and/or piping. A vertically positioned overflow/bypass/clean out piping apparatus may be included within the stormwater treatment system to provide additional water conveyance. Additional ancillary conveyance, filtration and storage facilities may be connected to the described stormwater treatment system as conditions warrant.

Systems and methods for stormwater detention. An outer wall comprising L-wall members arranged side by side, each comprising a vertical stem having a height h and a width w, and a base of width w connected to the stem and extending outward therefrom at a horizontal angle. At least a first portion of the L-wall member stems having a pocket extending a distance d from a top surface of the stem towards the base, where d<h. The pockets may be positioned midway of the stem width. At least a second portion of the L-wall member stems devoid of a pocket. Optionally, support walls also having a pocket. A roof of double-T roof members each having a span, a flange, and two webs, the webs having first and second ends engaged with one of the pockets of the stems of the L-wall members.

Individual square shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant square tilling shape for maximized structural strength and material use efficiency. Internal square shaped modules are assembled and encased by external square shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal square shaped modules drain into square shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

Structural cells and matrices using the structural cells for positioning below a hardscape that define a void space therein, the structural cells, matrices using the cells and methods of assembly allowing in one embodiment the introduction of a structural fluid such as concrete to provide an alternative structural cell and matrix product. In one embodiment a structural cell assembly is described comprising a structural cell with a plurality of legs integrally linked to a frame at a first frame end, the frame linking the legs together and the frame defining a generally flat plane with the legs extending substantially orthogonally away from the first frame end about the frame flat plane to a leg terminal end; and a separate plate engaging the legs, the separate plate comprising linked sockets, each socket engaging the leg terminal end; and/or linked sockets, each socket engaging the leg frame ends or a part thereof.

Water management systems and methods of constructing water management systems comprising two-dimensional arrays of cells. Each cell has a base and a cell top module stacked on the base, the cell top module having a top flange and at least one top leg, a lower end of which engages the base. A base of one system has a bottom leg with an upper end cavity configured for a lateral clearance fit of a lower end portion of the top leg. The cavity holds at least one stacked spacer and is filled with a flowable substance after the top leg is inserted and positioned on the spacer. The flowable substance hardens to fully seat the lower end portion of the upper leg. Another system series of the cell top flanges being held together by tension cables extending therethrough.

A drain protector having a flexible adsorbent pad, a raised insert, and a cover is described. The pad and the insert each includes aligned apertures. The raised insert is positioned over the flexible adsorbent pad or within the aperture of the flexible adsorbent pad. The cover is connected to the flexible adsorbent pad, a raised insert, forming a space over the insert. The drain protector is made from adsorbent material for blocking sediment, collecting contaminants and filtering water into a drain. The cover of the drain protector reinforces the sheet and insert to protect against damage from traffic over the drain protector.

Water management systems and methods of constructing water management systems comprising two-dimensional arrays of cells. Each cell has a base and a cell top module stacked on the base, the cell top module having a top flange and at least one top leg, a lower end of which engages the base. A base of one system has a bottom leg with an upper end cavity configured for a lateral clearance fit of a lower end portion of the top leg. The cavity holds at least one stacked spacer and is filled with a flowable substance after the top leg is inserted and positioned on the spacer. The flowable substance hardens to fully seat the lower end portion of the upper leg. Another system series of the cell top flanges being held together by tension cables extending therethrough.