Rain Gardens
ATR Associates plans, designs and constructs bioretention units ("Rain Gardens")
for industrial, commercial and residential developments. This is one of
the Best Management Practices (BMPs), or Integrated Management Practices (IMPs)
well-suited to a wide variety of locations, and which can have a significantly
beneficial effect on both stormwater quality and stormwater quality.
Rain Garden Site Planning
Rain gardens can come in a wide variety of sizes, shapes and designs not
entirely because of aesthetics, but because they can fulfill a variety of goals.
Many residential rain gardens are designed primarily to enhance runoff quality,
and are placed to store and infiltrate the first ½ to 1 inch of runoff from a
contributing area. In other instances, the rain gardens are true
bioretention units, and are designed both to enhance runoff quality and to meet
infiltration goals so that the hydrologic effects of development are minimized.
ATR Associates can:
• Evaluate soil types, slopes and other features to determine the
best locations
for rain gardens
• Identify runoff quality and infiltration volume goals
Rain Garden Design
In commercial or industrial settings ATR Associates performs comprehensive LID hydrologic analyses to serve as the
basis for rain garden design. Commercial and industrial rain gardens are
generally true bioretention units, and often are
designed to meet both runoff quality and infiltration volume goals. In
these situations ATR Associates:
• Determines the LID Design Storm, which along with the 2-year and
10-year
storms, serves as the basis for the design of the rain garden
• Determines the dimensions of the rain garden to meet water
quality and
infiltration goals to the extent possible given site restrictions
• Performs detailed input and output hydrograph analyses to ensure
that the
rain garden will not be a risk to surrounding areas, and
to serve as input
for
downstream hydraulic models
• Designs piping schedules for overflow and underdrains
• Prepares detailed planting plans
• Prepares detailed plans and specifications for construction
Residential rain gardens generally require less complicated designs than
commercial or industrial bioretention units. They often are installed to
improve runoff water quality. Nevertheless, they should be designed to
minimize the cost and the effort required to construct them. They should
adhere to certain location restrictions so the chances of basement flooding or
erosion are minimized. If you are considering a residential rain garden
ATR Associates can:
• Develop sizing and location guidelines
• Prepare planting plans
• Design any ancillary piping that may be required.
Rain Garden Construction
ATR Associates can assist homeowners with construction of raingardens.
We provide construction oversight services for commercial and industrial
bioretention installations.
Contact us about Rain
Gardens and other Bioretention Units
Go to Low-Impact Development
Go to Watersheds
Back to Stormwater Management
|
