A vegetation maintenance system includes a permeable curb, a water-diversion layer, a water-storage layer, a nutrient layer, and a vegetation-planting trough. The permeable curb is located abutting roadside pavement edge of a road along a road direction. The water-diversion layer is located on a side surface of the permeable curb and is disposed close to a bottom of the permeable curb. The water-storage layer is disposed at one side of the water-diversion layer away from a surface of the road, and is configured to store water. The nutrient layer is disposed at one side of the water-storage layer away from the water-diversion layer, and is configured to provide water, soil, and nutrients for growth of vegetation. The vegetation-planting trough penetrates through the water-diversion layer and the water-storage layer, is embedded in the nutrient layer, and is configured for vegetation planting.

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 a first plurality of support column attachments and one or more support column assemblies located below the top plate; the one or more support column assemblies being affixed to the top plate at the support column attachments. The stormwater management crate may further include a bottom plate having a second plurality of support column attachments located below the support column assemblies. 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.

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.

A storm water retention or detention system is constructed to fit a desired land area from square shaped concrete modules. Each of the modules has at least one water passage and one air passage, and the water passages and air passages of adjacent concrete modules are in alignment to allow the free flow of water and air therebetween. The water passage may be circular, have a cross-sectional area less than 60% of the total area of a side of module, and be slightly above the bottom inside surface of the modules.

A fluctuation belt ecological slope protection system that responds to hydrological variation includes a runoff treatment system and an ecological floating island system. The runoff treatment system includes a grass planting side ditch and a water accumulation pit-pond. The ecological floating island system includes an ecological floating island and an ecological gabion base. The ecological floating island includes a flexible substrate, and aquatic plants. The ecological gabion base is positioned below the ecological floating island. The ecological protection system is suitable for a fluctuation belt and consists of a runoff treatment system and a separable ecological floating island system. Rain water on bank slope is purified and collected as wet soil is stabilized, the protection system responds to backwater water level variation in fluctuation belt, providing growing space for plants, organisms, and fish, following variation in water level, enriching the ecological environment of the fluctuation belt, and improving scenic effect.

Stormwater management systems, methods, and apparatuses for containing and filtering runoff are provided. Disclosed embodiments may include a top plate and a bottom plate, the top plate including a first plurality of side panel attachments. Embodiments may include a plurality of support columns between the top plate and the bottom plate. Furthermore, disclosed embodiments may also include one or more arched side panels. 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.

A modular fluid retention system and method for exemplary uses collecting and temporarily retaining fluids, for example stormwater run-off. One example of the system includes a plurality of modular retaining units which are selectively connected together to form an interior chamber volume for collecting stormwater run-off directed into the chamber volume. A plurality of modular trays are engaged with portions of the respective retention units to prevent relative movement of the retention units and eliminate, or substantially reduce, the need for porous material to be installed in and around the retention units greatly increasing the excavation void space usable for water collection and retention. In an alternate application, only a plurality of modular trays are used as the vertical support and fluid retention volume structure for the fluid retention system.

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. A stormwater management crate assembly for managing stormwater comprising one or more stormwater management crates arranged in a modular array may be provided. In one implementation, the stormwater management crate assembly may include a top plate having a plurality of support column attachments a bottom plate, at least one intermediate plate having a plurality of support columns attachments and being located between the top plate and the bottom plate, and a plurality of support columns extending from the top plate through the at least one intermediate plate to the bottom plate. In one implementation, a stormwater management crate may include a lightweight intermediate plate configured to bear only lateral loads.

A storm water drain tank module for assembly into a storm tank for storage of storm water includes a top platen, a bottom platen and a support spacer. The top platen has an upper surface and a top platen peripheral edge. The bottom platen has a bottom surface and a bottom platen peripheral edge. The support spacer is attached to the top and bottom platens to space the top platen relative to the bottom platen. A plurality of tabs and a plurality of slots are defined proximate the top and bottom platen peripheral edges, respectively. Each of the plurality of tabs extends outwardly away from the top and bottom platen peripheral edges, respectively, and each of the plurality of slots extends into the top and bottom platen peripheral edge. The plurality of slots is open in a lateral direction.

There is provided a plastic infiltration unit comprising: a top deck, at least one pillar extending from the top deck, wherein the at least one pillar includes a plurality of compartments, wherein at least one of the compartments is laterally enclosed, and wherein the top deck and the at least one pillar are produced in one piece. There is further provided a plastic base plate for use with a plastic infiltration unit. There is further provided a plastic infiltration unit side plate. There is yet further provided a plastic in filtration system for deployment underground comprising a plastic infiltration unit and a plastic base plate, wherein the at least one pillar of the plastic infiltration unit is received at the receiving location of the plastic base plate.