More and more communities are requiring that storm water be captured and maintained on site. Vegetated swales used as micro-detentions are the most common storm water BMP.
Infiltration Trench
Infiltration trenches are somewhat a cross between sand filters and vegetative swales.They are often linear such as swales and they are constructed with the good infiltration capability of sand filters.
Suburban Detention Basin
Providing on site micro-detentions will absorb most of the rain that falls on this site during normal rainfall events. If storm water is detained on site, it prevents downstream flooding, stops erosion, halts pollution, reduces sedimentation and allows for ground water recharge.
Naturalized Urban Detention Basin
Naturalized Basins are standard Storm Water Detention Basins that are not mowed and allowed to become overgrown with vegetation and trees. Naturalized Basins provide natural habitat and sediment/pollutant removal.
Shopping Center Grassed Detention
Grassed detention areas are used as an inexpensive control measure, to temporarily hold storm water that collects on a site. It is simply a depression that is grassed that is capable of collecting and holding a storm water and then discharging it slowly.
Vegetated Roadway Swale
Rather than spray them with weed killers, or mow them to grass, why not plant them with beautiful Louisiana wetland wildflowers. They should be thought of as models for wonderful water gardens. This special type of water garden can be created in roadside drainage ditches in unincorporated communities and within gardens and parks within Louisiana towns and neighborhoods.
Dry Detention Basin
A dry detention basin is typically designed to store runoff volume and discharge it slowly to reduce the peak discharge downstream. As normally designed, these basins typically have little effect on the volume of storm water released to the receiving water.
Parking Lot Detention
Parking lot detention basins are designed to catch storm water runoff and hold it temporarily (usually no more than a few hours). The water held in these basins drains into the pipe system slowly, allowing the system time to recover. Other filtration methods such as sand filters may be combined with these detention basins to aid in filtering the runoff of pollutants.
Bio Retention Traps
A series of shallow depressions within the graded earthworks can be designed and constructed to recharge water that falls on developed property directly into the ground rather than letting it flow into the ditch in front of the park into the servitude at the rear of their property.
Rain Garden
A series of shallow depressions within the graded earthworks can be designed and constructed to recharge water that falls on developed property directly into the ground rather than letting it flow into the ditch in front of the park into the servitude at the rear of their property.
Structural Sand Filter
Sand filters are any number of depressions, trenches, barriers or sand lens constructed of sand that can be used to improve ground water recharge. The primary purpose of this storm water BMP is to improve internal soil drainage in low areas of a park.
Porous Pavement
Porous paving is a design solution that provides strong durable surfaces for pedestrian or vehicular traffic, but are porous and let rainwater quickly soak through and back into the soil rather than running off the site to another location. This helps in filtering the stormwater and recharging the groundwater supply.
Structural Storm Water Detention
For the most part, traditional structural storm water detention facilities are designed only to limit peak flow rate from very large, uncommon storms. They do not limit the increased volume of runoff created by parking lots and roofs.
Green Parking Lots
Green parking refers to several techniques applied together to reduce the contribution of parkingn lots to the total impervious cover is a lot. From a storm water perspective, application of green parking techniqes in the right combination can dramatically reduce impervious cover and consequently, the amount of storm water runoff.
